WTF am I doing wrong with Rain X?
WTF am I doing wrong with Rain X?
Author
Discussion

Biker9090

Original Poster:

1,887 posts

67 months

Friday 13th October 2023
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Bought a two pack set last week of demister and normal Rain X. I absolutely cannot get the demister to work without massive streaks and smears on the inside of the windscreen. It's doing fine on the drivers door window but all I've got is streaks/smear on the windscreen. Car is a 2015 Corsa so no tinting etc that I know of. I made sure to clean before hand using AutoGlym Fast Glass.

sherman

15,241 posts

245 months

Friday 13th October 2023
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It smears all over the place in my experience.
It works well when diluted into the window washers.

Defcon5

6,470 posts

221 months

Friday 13th October 2023
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I’d clean it with white vinegar, then buff it to death with some clean microfibres

I’d guess the fast glass is leaving a coating of some kind

Krikkit

27,938 posts

211 months

Saturday 14th October 2023
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Defcon5 said:
I’d guess the fast glass is leaving a coating of some kind
No, it's just not very strong with removing crap

otolith

68,957 posts

234 months

Saturday 14th October 2023
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Normal Rain-X is brilliant. The interior anti mist product has always been a waste of time in my opinion.

rodericb

8,880 posts

156 months

Saturday 14th October 2023
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Yeah if it's on the inside there'll probably be a layer of crud from the plastics off-gassing over the years and humidity and dust bulidup. It's only a very thin film that's all what's required to stuff things up. It's also hard to remove so you'll need to clean the glass thoroughly with glass cleaner type of stuff before applying the Rain X.

coppice

9,721 posts

174 months

Saturday 14th October 2023
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Rain X is ok but not a patch on now discontinued product whose name I have forgotten. But I can't forget its packing as it looked like a pink sex toy (I'm reliably informed) . It lasted ages , unlike Rain X and at anything above about 15mph the drops just slid off the screen, at speed .

BertBert

21,268 posts

241 months

Saturday 14th October 2023
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I've tried a few anti fog products including the rainex one and none of them seem to work.

If personally not bother. Is inside condensation a problem in your car?

Bobupndown

2,957 posts

73 months

Saturday 14th October 2023
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Used to use both products on my crash helmet visor inside and out. Worked pretty well.

Vantagemech..

5,733 posts

245 months

Saturday 14th October 2023
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Applying rainX is a bit of an art - clean the screen then apply with a clean paper towel. You have to put enough on that it then flows and clears without running. I've never used the exterior one with much success.

I wear glasses and use foggywipes when on my motorcycle. Never had any issues with them, so I'd guess is more the glass is dry and clean with a small amount of anti fog.

When racing we often use washing up liquid, if you then warm the wiped area after it clears while youre doing it. Works equally as well as rainX IMO.

anonymous-user

84 months

Saturday 14th October 2023
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Tried it a couple of times, both times made the screen worse than it was without it.
Tried some screen wash once with some added. That was bad too.
Lesson learned!

Crumpet

5,404 posts

210 months

Saturday 14th October 2023
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I’ve just tried using it because the wipers failed twice recently on the motorway - though it might act as a bit of a back up!

Unfortunately it’s results in the wipers just bouncing across the screen and making an horrific noise. Personally I think it’s junk.

ScoobyChris

2,307 posts

232 months

Saturday 14th October 2023
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coppice said:
Rain X is ok but not a patch on now discontinued product whose name I have forgotten. But I can't forget its packing as it looked like a pink sex toy (I'm reliably informed) . It lasted ages , unlike Rain X and at anything above about 15mph the drops just slid off the screen, at speed .
Ombrello? That stuff was brilliant but last time I checked on eBay (pre-Brexit) it was getting expensive and coming from Spain!

Chris

ETA - just checked again and 12 quid for 2 ampoules on eBay. Ordered!!

Edited by ScoobyChris on Saturday 14th October 10:10

sixor8

8,548 posts

298 months

Saturday 14th October 2023
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I must be one of the few who thinks it works then. I've used it on a car with a weak wiper motor to help with the MoT and it really does allow water to bead off. I've used it on the outside of motorcycle helmet visor too, although it was a few years ago, I no longer use a bike in the rain.

Perhaps the recipe has changed, like so many products with marginally harmful ingredients? I found that you don't even really need the wipers in light rain at speed! My only complaint is that it doesn't seem to last very long. frown


s p a c e m a n

12,102 posts

178 months

Saturday 14th October 2023
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Rainx works fine, I think that anti fog one is some sort of wind up experiment they've put to market though because it's only ever made windows worse for me. Once it ever reacted/I left it on too long/put too much on or something and it turned into some sort of jelly paste thing on the tinted side and back windows.

Summit_Detailing

2,451 posts

223 months

Saturday 14th October 2023
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Rain-x is a decent off the shelf retail product...prep as always is key, and make sure you clean the wiper rubbers thoroughly at the same time.

The interior 'anti-fog' product is utter rubbish....just use the a/c all the time - problem solved, assuming you have it!

Cheers,

Chris

anonymous-user

84 months

Saturday 14th October 2023
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Autoglym car polish on the inside of the windscreen is brilliant for anti misting properties.

Garvin

5,628 posts

207 months

Saturday 14th October 2023
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As stated previously preparation is key. Thoroughly wash the glass with good car shampoo, then clay bar it with a normal (not aggressive) clay bar maintaining ample lubrication. Final clean with white vinegar and dry. Apply lotion/potion of choice.