Have you ever used regular RainX on you M/C helmet? Why do they make a plastic version, does the regular stuff damage the plastic?

Regular RainX will ruin your plastic. Yes, unfortunately, I tried it. Had to replace the visor on my helmet.

Would this be suitable to use on the waterproof plastic casing for an action camera?

Believe so. It just helps "bead" up the water so it flows off more efficiently. I use it on motorcycle windshields and visor, but the wind helps keep it clear.

Is this safe to use on vinyl windows (isinglass, strataglass)?

https://www.sailrite.com/What-Is-Isinglass-Clear-Window-Material Read above link and towards bottom of article it will help identify type of Polyvinyl you have and products to clean it.

Can I use this in sub 40 degree temps?

Yes as far as using it after it has been applied, as far as applying it in sub 40° I don’t know for sure.

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Rain-X プラスチックウォーターリペレント 355ml 620036

Product ID: 748425895

Details

Brand
Rain-X
Global Trade Identification Number
Item Form
Liquid
Item Weight
0.4 Kilograms
Manufacturer
Rain-X
Number of Items
1

💧355ml advanced water repellent

🔆works on multiple clear resin surfaces

🛵ideal for helmets, visors & windshields

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8791 som

Duties & taxes included

In stock

Sold byAmazon KyrgyzstanDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

💦 See Clearly, Drive Boldly – Don’t Let Water Blur Your Journey!

ALL WEATHER CONFIDENCE - Stay ahead of rain, fog, and splashes with a durable coating that keeps your vision sharp in any condition.
EFFORTLESS APPLICATION - Spray and wipe formula means no-fuss, quick protection—get back on the road or water in minutes.
CRYSTAL CLEAR VISIBILITY - Transforms headlights, visors, and goggles with Rain-X’s signature water-beading tech for safer, glare-free driving.
TRUSTED AUTOMOTIVE ESSENTIAL - Join thousands of pros and enthusiasts who rely on this bestseller for fleet and personal vehicle maintenance.
UNIVERSAL RESIN COMPATIBILITY - Seamlessly protects acrylic, polycarbonate, lexan, and more—perfect for all your transparent gear and marine windows.

Rain-X Plastic Water Repellent 355ml applies advanced water-beading technology to a wide range of clear resin surfaces, including headlights, visors, helmets, and marine windows. This easy-to-use spray creates a durable, transparent coating that repels water for enhanced visibility and safety in all weather conditions. A top-rated automotive maintenance essential trusted by professionals and enthusiasts alike.

Specifications

ASIN	B00T9LR2BQ
Amazon Bestseller	#10,473 in Automotive ( See Top 100 in Automotive ) #32 in Automotive Window Water Repellent Coatings
Brand Name	Rain-X
Customer Reviews	4.4 4.4 out of 5 stars (3,661)
Global Trade Identification Number	00079118200367
Item Form	Liquid
Item Weight	0.4 Kilograms
Manufacturer	Rain-X
Model Number	620036
Number of Items	1
Part Number	620036
Recommended Uses For Product	Fleet and Plant Maintenance
Specific Uses For Product	Water repellent treatment for headlights, visors, helmet shields, goggles, motorcycle windshields, marine resin windows
UPC	079118200367
Unit Count	1.00 Count

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