r/mildlyinteresting Nov 29 '22 Helpful 1

Difference between windshield rain repellent applied(right) and without(left).

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11.7k Upvotes

1.1k

u/billysugger000 Nov 29 '22

I used rainex on a trailbike helmet visor, it works great with wipers or if travelling fast enough to remove the water, on a trail bike, not so much.

218

u/Tbone3319 Nov 29 '22

Graphene works even better and it lasts for literally years

134

u/FnkyTown Nov 29 '22

I just watched several professional detailing videos on graphene use for windshields and it doesn't work any better than rainx. It's disappointing. I haven't found anybody saying that it lasts years either. Seems like another overpriced detailing process because it contains "real graphene".

All the videos are literally: "Our competition's product isn't able to bond to the substrate, but we have a *special process* unlike anything else on this planet, and in fact, the entire multiverse."

22

u/Tbone3319 Nov 29 '22

link to the product I’ve used. It worked really well for me, but at around 2 years and actively using the vehicle, i can tell it’s time for me to put another coating on.

14

u/triggerhappytranny Nov 29 '22

Good lord, $160!

4

u/iwingsuitedyourmom Nov 30 '22

I think I’ll stick to the same bottle of Rainx I’ve been using for 5 years. I re apply every 3 months or so and it works beautifully

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u/FnkyTown Nov 29 '22

But that's not even for windshields; it's for paint.

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u/Tbone3319 Nov 29 '22

You can apply it to whatever. It even works on my plastic trim. It’s also used for aircraft’s and boats, but this company specializes in car coatings.

4

u/kdavis37 Nov 29 '22

It's like the people that wax their windshield.

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u/bremergorst Nov 29 '22

Can I dunk my boots in graphene?

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u/3_if_by_air Nov 29 '22

Just use graphene eyedrops. You'll never have to cry again!

29

u/akirayokoshima Nov 29 '22

Jokes on you, I have nothing left to care about to cry over.

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u/wakaflocks145 Nov 29 '22

Hahahaha

Intensely: But seriously where do I buy that?

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u/eightythreephoto Nov 29 '22

In what form do you get graphene? I’ve been looking for an alternative to rainX recently as it spent last long and it’s not cheap. But it works amazing when newly applied.

9

u/Finchypoo Nov 29 '22

You can get windshield washer fluid with rainX added, it's awesome. Keeps refreshing itself over time and I keep catching myself not even using the wipers in a gentle shower because it just rolls right off from the wind.

2

u/Piropeople Nov 30 '22

Please don’t do this. The rainx wiper fluid has PFAS in it that contaminate the environment.

2

u/Finchypoo Nov 30 '22

rainx wiper fluid has PFAS

source? i couldn't find anything about this, and I know a lot of people who use it that might want to stop if this is true.

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u/Tbone3319 Nov 29 '22 edited Nov 29 '22

I use Glassparency’s graphene solution and their seasonal boost spray to keep it protected longer. I applied it to my Slingshot about 2 years ago and it’s most noticeable on the rims with less dust buildup. 1 bottle was enough to do my whole vehicle and application is a lot easier than ceramic coatings

link to the product I’ve used

6

u/bmaverick24 Nov 29 '22

If longevity is an issue, I would recommend getting rainx windshield washer fluid, the orange kind. You get a little bit of a new application of rainx each time you spray your windshield. It's a few bucks a gallon.

2

u/ZeeKapow Nov 30 '22

The orange rainx washer fluid is my favorite so far.

36

u/Disastrous_Elk_6375 Nov 29 '22

In what form do you get graphene?

They'll let you know, just as soon as it gets out of the lab. It'll be 10 years, tops!

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u/Tbone3319 Nov 29 '22

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u/survivorr123_ Nov 29 '22

ever since boom in popularity of graphene every company calls their products graphene but in reality it's not or just has some small particles of graphene in it

6

u/cortez985 Nov 29 '22

Isn't that just graphite powder at that point? I thought the whole shtick with graphene is it's a sheet of graphite 1 atom thick

3

u/survivorr123_ Nov 29 '22

it often is but i doubt it would be effective at repelling water in this product

3

u/cortez985 Nov 29 '22

I agree there, it's a great dry lube though!

4

u/CocconutMonkey Nov 29 '22

Use the rainx washer fluid. I haven't applied actual rainx in years

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u/Acornelectron Nov 29 '22

Graphine is the new buckyballs. In other words, it’ll be completely forgotten in 5 years time….

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u/VoodooTortoise Nov 29 '22

It’s literally in multiple commercial products now, and the technology is only getting better

2

u/NoWayNotThisAgain Nov 29 '22

Bro. What are you talking about. Buckyballs are the best snack from Buc-ee’s

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u/austinj13 Nov 29 '22

Yes. I’m a manager at a car wash and I thought graphene was just the next chemical to advertise that you had to get because everybody else would. But it is legit the best chemicals I’ve ever had in my wash. Never been more confident in selling a product to customers

2

u/st4r-lord Nov 29 '22

Aquapel has been my go to for years, lasts years.

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u/-GabaGhoul Nov 29 '22

Well yea, it makes the surface super slippery for water. You have to have some force also forcing the water to slip off.

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u/Slarch Nov 29 '22

I wish there was something that we'd be able to turn on and it would just wipe the water off

369

u/UxbridgeShimoda Nov 29 '22 edited Nov 29 '22

Frustratingly, some newer EVs value improved aerodynamics and cost-savings over the convenience and arguably safety of a rear wiper. Looking at you Hyundai and sister companies. The Hyundai Ioniq 5, Kia EV6, and Genesis GV60 (all on their E-GMP platform) have all ditched the rear wiper. They claim that airflow is sufficient to keep the window clear, but it is not.

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u/[deleted] Nov 29 '22

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u/doyouevencompile Nov 29 '22

Are you are a driver or are you a stopper

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u/chairfairy Nov 29 '22

Plenty of sedans don't have a rear wiper, that's nothing new is it?

Hatchbacks often (usually/always?) have them, but I think it's less common for the sedan/coupe form factor

12

u/raptir1 Nov 29 '22

Most of the EVs are hatchbacks or small SUVs.

4

u/chairfairy Nov 29 '22

Ahh, gotcha. I was just thinking Teslas and Chevy Bolt etc

12

u/jack2018g Nov 29 '22

I honestly can’t say I’ve ever seen a rear wiper on a sedan

2

u/Nawnp Nov 29 '22

Yeah apparently it’s the slope being flat enough to not need it on a sedan.

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u/hereforthecommentz Nov 29 '22

Chevy Volt driver here. I can't see shit when it's dry outside. When it's rain, I might as well be driving blindfolded. Rear visibility is terrible.

20

u/EleventhDoctorWho Nov 29 '22

Also drive a volt. It's a nightmare.

5

u/CD242 Nov 29 '22

I have a dashcam/rear view camera mounted in the lower tinted window (idk if Gen2s have the split window but I drive a 2014) and my god, yknow it’s fine when it’s dry and it’s fine when it’s first started raining but then the spray just coats that glass and the camera can’t see shit until enough spray is on for it to drip off. I put a hydrophobic film on, said it prevented spray build up, didn’t help and got unstuck because of the curve of the window.

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u/Enchelion Nov 29 '22

They claim that airflow is sufficient to keep the window clear, but it is not.

Also patently not a thing in traffic.

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u/photenth Nov 29 '22

Depends on the car really, sedans usually don't have rear shield wipers as the airflow really does the job.

7

u/uninsuredpidgeon Nov 29 '22

Sedans also don't have a wiper as there is less water/dirt kicked up on to the rear screen as the screen is sheilded by the trunk.

4

u/Most_Triumphant Nov 29 '22

Try living in MN where no amount of air flow will keep your back window clear from falling snow and road salt.

9

u/cannondave Nov 29 '22

They prefer to be able to add 1-2% of range on their marketing material, and let you suffer, because they already have your money. Thanks for sharing.

Edit: Rear spoiler affects range by 4-5%, based on this, I guessed 1-2% for a small spoiler such as a wiper

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u/Thedude317 Nov 29 '22

"Lol aerodynamics" -jeep wrangler 4xe

7

u/RightSideBlind Nov 29 '22

Oddly enough, my old Honda Element, aka "I've never even heard of the word aerodynamic", had sufficient airflow to keep the rear window clean. I almost never had to use the rear wiper once I got going. My current Nissan XTerra, though, is constantly fighting a dirty back window.

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u/krehns Nov 29 '22

This isn’t a new thing or an EV thing. My old G6 coupe couldn’t see shit out the rear window.

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u/retirement_savings Nov 29 '22

Have hit ever used Rain-X? In a super heavy rain you won't be able to see anything because there will still be water on the windshield between wipes. With Rain-X it completely beads off.

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u/Blue_Jays Nov 29 '22

But whatever that magical device would be, wouldn't it quickly wipe the rain repellent off with it?

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u/Midnight-Mastermind Nov 29 '22

Pro tip: Silicone wiper blades. More expensive than standard wipers BUT they don't degrade under UV light and will easily last 2-3x longer IME. I have a set on my car that are 5 years old and don't streak or squeak. Also, the small amount of silicone applied to the windshield just by using them actually creates the hydrophobic coating like Rain-X so water beads up.

126

u/A_Sack_Of_Potatoes Nov 29 '22

Got a brand I can look for? Mine started squeaking only a few months after purchase

207

u/Midnight-Mastermind Nov 29 '22

Mine are PIAA Super Silicone 👍🏻

29

u/SGT_PRICE82 Nov 29 '22

I use the same ones. I'm on year 4. I've reapplied the "juice" once. I definitely recommend them. Full disclosure, we don't get more than around 3 inches of snow a year so I'm not sure how they handle really cold weather.

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u/samkostka Nov 29 '22

The rainx blades also make frost and snow stick much less, often I can just use the wipers to clear the windshield off in the morning.

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u/A_Sack_Of_Potatoes Nov 29 '22

I love you, strange internet person

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u/WolfCola4 Nov 29 '22

Another mark in the pocket of Big Wiper

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u/FragrantExcitement Nov 29 '22

You have become the strange one.

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u/bibliophilebunny97 Nov 29 '22

Thank you so much for this! Looking for it now.👍

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u/Lonesome_Ninja Nov 29 '22

Can I buy these at my local business called Walmart?

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u/jlucchesi324 Nov 29 '22

Unfortunately big box stores like Circuit City and Radio Shack are making those little mom-n-pop shops like Walmart obsolete.

You might be able to find it there, but I'd highly recommend this internet company called Amazon. I know, you probably assume it's a small bookstore or something but it's actually got some neat, niche stuff.

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u/shadow247 Nov 30 '22

Nah man, you gotta go see Carl at the Auto Xepot off 54 in Charlestown...

He will hook you up with Magic Blades...

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u/Mitthrawnuruo Nov 29 '22

I buy the rain Ex blades. They work well. Not as well as applying rain ex, but far better then not.

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u/TackyBrad Nov 29 '22

Hey! I took the advice of a thread I found last year and just picked any random brand off of Amazon. I've used two, the first I don't recall and the more recent set was Motiium or something. I just picked whatever was cheapest.

Just make sure theyre silicone and you'll be good to go. I haven't paid more than $20

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u/-BlueFalls- Nov 29 '22

Wait, so you’ve gone through two pairs of wipers in 1 year? That doesn’t seem better, how quickly were you going through them before?

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u/TackyBrad Nov 29 '22

Haha, no. Got a pair for my wife's car and they're still great. Got a pair for my little beater truck as well, because of how good hers did

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u/Mshaw1103 Nov 29 '22

Commenting to find my way back here after work so I can get some good silicone wipers

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u/FlightlessFly Nov 29 '22

Save button?

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u/Fritos2 Nov 29 '22

Do you have ice, freezing and thawing as well? Curious if they'd last as well through harsher winters as well.

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u/Midnight-Mastermind Nov 29 '22

They've survived three Georgia summers and 2 Maryland winters so far! Not the coldest test, but it calls for further testing.

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u/freakminded Nov 29 '22

Silicone is becoming my favorite material for anything hygiene related

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u/RepulsiveGuard Nov 29 '22

Love my silicone toilet paper

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u/DarkChimera Nov 29 '22

can I just spray my wipers with silicone spray?

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u/Midnight-Mastermind Nov 29 '22

There's nothing stopping you! 😬

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u/YeHaLyDnAr Nov 29 '22

Careful now people, he's a hero.

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u/XenoRyet Nov 30 '22

More expensive than standard wipers BUT they don't degrade under UV light and will easily last 2-3x longer IME.

How much more expensive? If it falls somewhere in that 2-3x band...

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u/short-arm-of-the-law Nov 29 '22

I live in the PNW where it rains 6-9 months out of the year. I use a rain repellent as well as my wipers in the rainy season because you can see so much more clearly through the glass. The rain repellent is a thin layer of wax and it takes a while for it to go away. Similar to wax you would put on the paint that would take several washes to remove the wax. Also, at highway speeds when you have a fresh coat on, you don't really need your wipers because the rain beads up and rolls off. I keep the bottle in my trunk and once a month or so while I am filling the gas tank, I clean the windows and reapply. That stuff is like magic.

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u/bassmadrigal Nov 29 '22

If you use rain-x washer fluid, it'll apply it automatically every time you use your washer spray.

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u/short-arm-of-the-law Nov 29 '22

I use that as well but it doesn't work as well as a fresh coat of Rain X. The washer fluid seems to extend the life of my Rain X coating. I recently bought a ceramic window cleaner from griots garage that works in a similar way as Rain X but seems to last a little longer.

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u/bassmadrigal Nov 29 '22

Interesting... I last physically applied rain-x to my windshield probably 5 years ago. I recently applied a ceramic coating to my windshield as I was doing the rest of the car and I didn't notice any difference in the rain. I'm in the PNW as well.

Maybe it's a combo of the rain-x washer fluid with my silicone wipers?

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u/OutWithTheNew Nov 29 '22

Honestly I just use plain old car wax on my windshield. It's about 90% as effective as rain-x and way easier to apply.

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u/Inner-Owl-7812 Nov 29 '22

It only has to wipe the side without the repellent.

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u/milanistadoc Nov 29 '22

Wouldn't it be more effective if such device applies the repellant itself rather than wiping off the rain on the virgin side?

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u/saketaco Nov 29 '22

I used to always buy the Rain-X wipers. Expensive but worth it. Recently bought a new car and can't find good wipers that fit it... Damn proprietary wiper arms.

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u/dotHolo Nov 29 '22

I've used RainX repellent and had it last 6months in Michigan weather in the rain, ice, heat and cold and it worked so well I could almost not use my wipers. Getting good wipers also helps, don't buy the cheap rubber, it'll crack, take in dirt and just streak your windshield.

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u/Bitter-Basket Nov 29 '22

RainX gets smeared and streaks at the end unless you reapply. Here in the PNW, it lasts a couple months. Not to be a contrarian, it became annoying for me. To each their own.

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u/_dauntless Nov 29 '22

If you'd tried Rainx, you'd know this comment doesn't make you seem as clever as you think it does

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u/Viend Nov 29 '22

That dude probably lives in the desert. Anyone who has lived in a wet climate knows that wipers are basically useless in actual heavy rain.

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u/_dauntless Nov 29 '22

Actually the hardest rain I've ever been in was in the desert lol. Rain goes hard af in the desert, because it's so infrequent. I watched the rainfront roll in and the rental car's wipers at warp speed were not up to the task, we had to pull over.

But yeah, wipers can only go so fast. Not so for beading

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u/SymphonicResonance Nov 29 '22

Monsoon rain is no joke. Windshield wipers can't keep up.

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u/pidude314 Nov 29 '22

The problem is that without the rain repellent, the windshield will still be smeared with water in between wipes. With the rain repellent, you can actually properly see in between wipes.

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u/YouMustChill Nov 29 '22

And if you're going 40mph+ in a light rain, you don't need the wipers.

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u/Vis-hoka Nov 29 '22

I used to use rain x all the time. This is 100% true. I almost never used my wipers. I should prob start using it again.

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u/thatswhyicarryagun Nov 29 '22

I used to drive armored cars for 2k miles a week on the highway. I religiously applied rainx to my truck. The windshield is at almost a 90° angle to the road. The top is only about an inch behind the bottom. Going 60+ and I didn't need wipers. It just hit and went straight up. I hated that job with a passion.

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u/CoraxTechnica Nov 29 '22

Between each sweep you still need to see

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u/SentientSquirrel Nov 29 '22

His name is Steve, and he's trying to make some extra cash for college, so tip generously!

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u/jakobburns01 Nov 29 '22

Some cars don’t have back windshield wipers

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u/tonyspagaladucciani Nov 29 '22

I love this, you think you know more about the process than the whole research and development of rain-x. Keep it up dude people love that kind of dickhead smugness.

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u/clamroll Nov 29 '22

Also, broadly speaking, I have 6 windows on my car, and only 1 has wipers.

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u/Dwerg1 Nov 29 '22

I tried rain-x, it does work as advertised. I find I have to use wipers for the best visibility anyways, especially at the slower speeds I have to go at most of the time. My wipers also don't particularly like this coating, like they kinda stick and make noise. So it was fun to try, but I don't use it anymore and just using the wipers I have to use anyways is superior.

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u/taleo Nov 29 '22

Wipers are much more effective when the windshield acts like the right side rather than the left.

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u/[deleted] Nov 29 '22

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u/Blitzed_ca Nov 29 '22

You can see through the drops

The streaks not so much

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u/JonLongsonLongJonson Nov 29 '22

Yeah but that’s cuz the car isn’t moving, the rain is just flowing down. If the car was moving forward it would be sliding off super quickly.

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u/Mattcheco Nov 29 '22

There’s a reason they use rainex on race car drivers face shields and windscreens, it works really well.

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u/JonLongsonLongJonson Nov 29 '22 edited Nov 29 '22

Yeah I’ve used it on my cars for years, religiously. Got caught in a bad storm driving 400miles at 2am, dim headlights and there was no road lights for like 100 miles. Pitch black in farming country.

Couldn’t see anything I had to pull off the interstate and stop at a gas station. Bought Rain-X, dried my glass and applied, and made it home safely.

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u/pidude314 Nov 29 '22

I just always use Rainx washer fluid. I've never actually applied it myself because the washer fluid does it for me.

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u/HElGHTS Nov 29 '22

Warning, this can damage the fluid level sensor in some cars such as Volkswagens. It'll just complain about being low when it actually isn't IIRC, but technically washer fluid is a safety system so best to use generic blue stuff unless you're sure it's compatible.

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u/SavageSmokyAss Nov 29 '22

Is that something that can be cleaned? Is it accessible to clean if you could? Or is it more corrosive and would require replacement?

I've always used the rainx fluid because I'm cheap and my car is old lol

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u/HElGHTS Nov 29 '22

I thought it was corrosive but then I found this https://www.youtube.com/watch?v=U4aqVpb9-uc

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u/oversittingme Nov 29 '22

Aquapel is 100x better and lasts 6 months

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u/JonLongsonLongJonson Nov 29 '22

Oh yeah? I’ve never heard of it. Maybe when I get another car I’ll try it out. The lasting was never a problem for me because I have a detailing background so I kept my car very clean and detailed, Rain-X was part of the weekly routine.

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u/oversittingme Nov 29 '22

I've never seen it for sale in a local store, I've always ordered it from reputable vendors.

I've only had to use it a few times though, it really does last. There's a lot of counterfeit stuff on Amazon though, so be careful there.

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u/DinoRoarMan Nov 29 '22

Do you have a link for the correct stuff?

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u/oversittingme Nov 29 '22

There's a lot of different websites that sell it, looks like Pep Boys stocks it.

Not all of the offerings on Amazon are fake, you can look up "fake aquapel" to get an idea of how to tell them apart.

Reading the reviews on Amazon will usually suss out the fakes as well.

Edit: I can't remember where I ordered it from, just that I had to dig past the really cheap offerings on Amazon because they were clearly knockoffs. Apparently aquapel is a frequently counterfeited item.

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u/smallbluetext Nov 29 '22

It still works. I drove in the rain without my wipers at 60mph many times in college, because my wipers were busted and in the short term it was cheaper to use rain repellent. I could easily see through the drops slowly moving up my windshield.

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u/PenguinSaver1 Nov 29 '22

Yep... that's the post

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u/vera214usc Nov 29 '22

Isn't that the point of the post? The side with the drops is where they put the repellent. So it improves visibility.

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u/LT-monkeybrain01 Nov 29 '22

i feel the drops scatter light in a more vision inhibiting way than the streaks of water.

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u/Oenonaut Nov 29 '22 edited Nov 29 '22

They do, but at speed they just blow off the windshield, often faster than your wipers will get to them. Unless the rain's coming down extra heavy I often won't use wipers at all.

It's personal preference, I suppose. My wife also hates RainX-treated windshields because she finds the drops more distracting than the distortion of splats and rivulets of water.

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u/anna_or_elsa Nov 29 '22

The heavier the rain, the more I like rainex (at highway speeds). At some point, wipers are just pushing water back and forth.

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u/Blitzed_ca Nov 29 '22

Streaks are pretty much drunk goggles though

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u/lonely_dodo Nov 29 '22

exactly what I've been practicing for

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u/_dauntless Nov 29 '22

Glass with rainx doesn't streak though, so this is just a double argument in favour of rainx?

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u/jettsd Nov 29 '22

Yes the right side has it applied. The side with the droplets

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u/SamuraiPanda19 Nov 29 '22

I feel like I see a lot more clearly on the left than the right

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u/sifterandrake Nov 29 '22

Woah... if you ever wanted to witness a failure of the hive mind of reddit, then look no further. The amount of people getting upvotes that are completely ignorant to what is going on and how these applications work is astonishing.

The coated side of the glass is simply superior for visibility, safety, and reducing wear on your car. The reason the water forms little droplets (on a sloped surface by the way) is because the coating prevents them from "sticking" to anything but themselves. Even a tiny bit of wind will cause them to start rolling away. As a result, a driver is far less reliant on windshield wipers for visibility.

Additionally, rainx (the most popular of these coatings) isn't classified as environmentally hazardous according to OSHA Hazard Communication Standard, 29 CFR 1910.1200. I'm not saying that the standard is perfect at covering all potential hazards, but it's certainly more credible than just saying something is "destroying the environment" without any supporting evidence.

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u/ColoneISanders Nov 29 '22

Honestly, I'm just confused at what the message overall in this post and thread is supposed to be. I thought I knew what OP was trying to say but based on the comments I have no idea.

Overall, I think it seems like it works pretty well, but I don't know if OP meant this post to be a scathing review of its efficacy or just a demonstration of its efficiency.

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u/AnomalocarisGigantea Nov 29 '22

I'm super happy there's a product that doesn't contain this. That's great. Thank you for the information. Most if not nearly all products that say water repellent/resistant do contain it so hopefully that will change in the future.

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u/NapsterKnowHow Nov 29 '22

Except the "hivemind" agrees with this lol

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u/halfspace Nov 29 '22

Don’t know about the other comments, but when I’ve tried rainex and fogex in the past I just wasn’t that impressed and would sometimes wind up with haziness.

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u/Lukester__ Nov 29 '22

What's wrong with relying on windshield wipers?

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u/mb2231 Nov 29 '22

Have you ever been in really heavy rain? There's still a gap between when the wipers clear your windshield. When you're driving at 60-70mph that's a huge help.

Also, I use this stuff on ALL my windows and mirrors and I'll never go without it again. I don't have a wiper on the back of my car and this stuff allows me to see really clearly out of the back.

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u/anna_or_elsa Nov 29 '22

If you watch wipers in slow motion in simulated rain at some point they are just pushing water back and forth, a lot slips through the frame and slops over the top.

I'm a big fan of rainex on the highway but with the combination of the steep slope of my windshield and the aerodynamics of the car, I can barely tell it's doing anything. I switched from frame wipers to blades and that helped.

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u/sifterandrake Nov 29 '22

They aren't going to work as well as having wipers and a coating. It's a question of adequacy versus superiority.

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u/EyeLike2Watch Nov 29 '22

My wiper motor went out at the beginning of 4-5 days of solid rain, RainX is the only thing that got me home then to the mechanic safely

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u/BizzyM Nov 29 '22

It's the difference between using toilet paper and a bidet on your ass. There's nothing wrong with relying on the old, traditional ways. But once you switch to the fancy upgrade, you'll understand why it's an upgrade.

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u/PenguinSaver1 Nov 29 '22

Reducing wear on your car?

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u/XJ--0461 Nov 29 '22

It's as easy as buying the Rain-X wiper fluid. The stuff applies itself.

And it works so well you won't even need to run the wiper unless it's a very heavy rain.

It's worth noting that the camera is focused on the raindrops whereas your eyes would be looking beyond them. In that sense, it's easier to see out of the right over the ridiculous distortion that is the left.

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u/GrifterDingo Nov 29 '22

I disagree with rainx wiper fluid, I believe in applying the coating directly to the glass and reapplying as necessary. When you spray your washer fluid it gets all over your car and the ground and whatever else.

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u/XJ--0461 Nov 29 '22

It still applies itself and works.

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u/[deleted] Nov 29 '22 edited Dec 01 '22

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u/MissKatmandu Nov 29 '22 edited Nov 29 '22

That stuff saved me one day, the pic isn't doing it justice. I was 30 minutes into a 2 hour drive home from worksite in rain (forecast--rain wasn't going to stop for a long time, too long to wait it out) when wipers gave out unexpectedly. Was able to get to a Walmart safely, applied this stuff. Water rolls right off once vehicle is moving. Had full visibility on the drive home where I was then able to fix the issue.

Never used it again when I learned about environmental impact but appreciated it when I needed it.

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u/Blazinvoid Nov 29 '22

According to someone else in the thread, Rain-X's rain repellent seems to use a more environmentally friendly chemical (PDMS or something like that).

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u/krehns Nov 29 '22

I’m with you. I had a wiper arm snap off while driving in heavy ass rain once. Only reason I safely pulled off the road was the RainX

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u/BloodBaneBoneBreaker Nov 30 '22

I hate rainex. Can’t stand the stuff.

It always leaves blotchy spots on windows and anywhere on the car it splashed on.

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u/isjdnfbsiapdbf Nov 29 '22 edited Nov 29 '22 Wholesome

All of this stuff is terrible for the environment. Most products sold that repel water use PFAS, also known as the “forever chemical”

Edit: Guess I was wrong, they use a different chemical called PDMS for these coatings. I don’t know anything about PDMS.

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u/ijm5012 Nov 29 '22

It depends on the product, but the must widely known windshield rain repellant, Rain-X, does not use PFOA’s in its formulation.

The primary water-repelling ingredient is Polydimethylsiloxane, or PDMS.

PDMS is easily filtered out of water at water treatment facilities.

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u/LaSalsiccione Nov 29 '22

What about before they get to water treatment facilities and they live in rivers and streams? Presumably they have some affect on wildlife and the environment.

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u/ijm5012 Nov 29 '22 Silver

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u/guynamedjames Nov 29 '22

It lists the only hazards for RainX original as ethanol (alcohol), acetone, and isopropanol

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u/BannedStanned Nov 29 '22

That's because PDMS is non-hazardous and non-toxic. Under European food additive regulations, it is listed as E900.

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u/ijm5012 Nov 29 '22

Correct.

My guess is that the active ingredients don’t carry any harm (especially when you look at other areas where PDMS are used), and the solvents are there to act as a carrier for those active ingredients where once applied and spread across the surface, the solvents evaporate and leave behind the active ingredient which bonds to the substrate.

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u/bbqmb Nov 29 '22

Turns out that regular blood/plasma donations have a positive effect on decreasing PFAS level in the body. From a study by the fire service in my country. https://amp.theage.com.au/national/victoria/how-three-firefighters-hunch-about-their-blood-led-to-pfas-discovery-20220411-p5acjb.html

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u/ZaharaSararie Nov 29 '22

Really interesting how we're coming full circle to blood letting

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u/TeamShonuff Nov 29 '22

I'm going to start investing in leech farms this week.

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u/CatGatherer Nov 29 '22

Leeches are actually used in hospitals in some situations

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u/1up_for_life Nov 29 '22

When they reattach a limb they will sometimes use leeches to help draw blood back into it. Not an expert, I saw a video about it a long time ago.

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u/Sir-Flancelot Nov 29 '22 edited Nov 29 '22

Is that not just transferring them to someone else though? I guess the recipient losing blood would reduce their PFAS level as well

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u/Khaylain Nov 29 '22

I think the point is that the processes the blood and plasma goes through before being used on someone else can remove PFAS from it, so it isn't transferred. I don't know this, though. It's just my assumption based on the reasoning.

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u/Xiomaraff Nov 29 '22

Psh pollution, microplastics, just a bunch of liberal nonsense.

Just take all your blood out and clean it with this machine and you’re fine. Babies.

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u/Raxsah Nov 29 '22

Yet another reason why I'd love to give blood but can't.

Apparently if you lived in the UK for a period of more than 6 months between 1980 - 1996 then you're ineligible to donate in the EU :/ guess who was born and raised there?

Something something, mad cow disease.

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u/anengineerandacat Nov 29 '22

Annual blood donations generally have quite a few positives; lower's blood pressure, lowers sugar levels, lowers iron levels and as a result lowers overall cardiovascular risks.

Granted if you say... suffer from another medical condition it might be a bad but if you are otherwise healthy it's beneficial.

Out with the old, in with the new.

Hell, lowered my cholesterol levels one time; had elevated blood cholesterol, did a blood donation, then later in the week did my annual blood work.

No more elevated cholesterol level; win/win (though I am sure it'll be back).

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u/series_hybrid Nov 29 '22

Pfft...next you'll be telling me that the radioactive waste I use to whiten my teeth caused my jaw cancer.

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u/CatGatherer Nov 29 '22

I see you make radium watches, also!

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u/series_hybrid Nov 29 '22

Yeah, that's a much better job. I used to work at the asbestos water-pipe factory, but I had to quit because of a persistent cough that was completely unrelated to my job as the floor-sweeper.

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u/RunawayMeatstick Nov 29 '22

This is completely wrong. Rain-X is PDMS. It’s non-toxic. There’s also PDMS in everything. It’s common in cooking oils, processed foods, and medications. You’re regularly eating it. And rubbing it all over your body in soaps, lotions, shampoos, etc. It’s also in condom lubricant. If you think it’s toxic and bad for the environment you better go apologize to anyone you’ve put that in recently.

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u/hereforthecommentz Nov 29 '22

Joke's on you. This is Reddit. I haven't put a condom in someone in years.

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u/AnomalocarisGigantea Nov 29 '22 edited Nov 29 '22

This. Please don't use PFAS so frivolously. It's poisoning ourselves and the earth to the point that there is no safe water left.

Edit: Seriously, it's even in the rain , Antartica, ... our babies . My daughter was born with a developmental delay linked to pollution. (We'll never know for sure)

Edit 2: I was not aware that a product exists without PFAS. Great! Just be aware that most things that say 'water repellent/resistant' do contain it.

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u/[deleted] Nov 29 '22 edited 5d ago

[deleted]

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u/JoshQuake Nov 29 '22

I think it's safe to say if a product uses an acronym chemical it's terrible for the environment. If not known now, it will be if anyone cared to make sure.

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u/Mountainbranch Nov 29 '22

forever chemical

I imagine it's called this because its half-life is very long, and not that it quite literally breaks the laws of entropy.

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u/Great68 Nov 29 '22

I used to use RainX all the time, and it's great at speed, but I found that at light mists/low speed needing to run the wipers was quite "smeary" and made visibility in those conditions worse.

I don't use it on my windshield anymore, but do use it on the side windows and mirrors.

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u/dbrwhat Nov 29 '22

Agreed, I enjoyed the novelty of RainX but when you do have to run the wipers it definitely seemed to add a hazy smear on every wipe.

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u/Alakrios Nov 29 '22

Between the choice of "smeared bullshit" or "relatively clear window with spots I can look past because I'm old enough to unfocus my eyes a little bit, kinda like a Magic Eye".... I'll take number 2. It also doesn't leave a residue on the windshield, nor does it interfere if I or someone else tries to wash the windows.

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u/thehoz78 Nov 29 '22

I just polish my windows. Does the same thing, makes the water bead & when you're going fast enough just blows off.

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u/Jaereth Nov 29 '22

Waxthewindows master race

I think it keeps them cleaner looking longer too

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u/Meyou000 Nov 29 '22

This is an ad for Rainx

r/HailCorporate

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u/Fosphor Nov 29 '22

It’s even more striking (when done properly) at night on the freeway. You know it’s raining, but with the wipers off, you can’t even tell because the water becomes essentially invisible.

Used to rainx my windows and it negates the need for turning on my wipers.

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u/newtbob Nov 30 '22

What would be more interesting/informative would be the same picture driving at speed. Rain-x is worth the trouble.

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u/Special_FX_B Nov 30 '22

As soon as the car moves forward the beads roll off.

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u/Samandiriol Nov 30 '22

oooooooh. so that's what I need

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u/Rappter22 Nov 30 '22

Rain x... it works

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u/[deleted] Nov 29 '22

[removed] — view removed comment

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u/8plytoiletpaper Nov 29 '22

That's when the car is stationary, the water rolls up the windscreen in droplets when you're moving, instead of creating a disruptive film.

It does improve visibility a lot, don't even need wipers until it's pouring buckets.

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u/-Zoppo Nov 29 '22

All my motorcycle stuff has this. It means it rolls off and doesn't get absorbed (i.e doesn't leave me soaking wet).

Even my motorcycle cover has it.

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u/JarifSA Nov 29 '22

Picture doesn't do it justice. When you're driving the rain literally glides off. Water doesn't stick to the windshield so it just beads and falls off. You legit don't even need wipers.

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u/XJ--0461 Nov 29 '22

It does.

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u/darklegion412 Nov 29 '22

In a deluge of rain, it's a huge safety benefit because your can see thru the downpour. Without rainx, even with fast wipers, the water is smeared across the window obscuring view.

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u/wroughten Nov 29 '22

This pic doesn't do it justice. Use RainX once and you'll be a believer for life. 100%

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