G5 Water Repellent Coating on Glass and Perspex for Cars, 3.4 fl oz | Repels Dirt and Water, Highly Hydrophobic, Works on Low Speed Driving, Easy to Apply, Lasts up to 4 Months

Works really, kind of a pain to buff off, but is a solid product

This stuff is a very good product. I about a month in and so far it works very well. I have an issue with my new peterbilt 579 where a cyclone develops on the drivers side window when its raining pretty heavy so it makes it hard to see the mirror which in my line of work is super dangerous. So far though it’s working wonders. Is this as easy to put on as RainX….id say it’s about the same. It’s like applying a wax to your windows where as rainX is either a spray or the wipes. I will say the instructions on this though need a bit of work because they say to avoid water for 2 hrs after application but they should add an extra step like RainX does….like applying water to your microfiber cloth then going over the window again AFTER the 2 hours to wipe off the haze left behind. I would say follow the instructions but do this extra step afterwards. I also applied this stuff to my moms Subaru and shes been pretty happy with is especially since rain in the Midwest is pretty much all over the map.

all the other ones I've tried only start working around 41mph this starts to have the same effect around 32mph so much better HOWEVER it is approximately 300% more work to apply correctly. after application and letting it dry, getting a good buff takes sooooo much more effort and work than all the other ones I've tried. I even busted out my sander and threw on a buffing disk and it still took about 3x as long as with just a microfiber cloth on the other ones. Worth it for me but ymmv

The hydrophobic properties of this is really good. I would say its equal to Rain-x when its brand new. Expect Rain-x doesnt last for nearly as long. Ive done several washes on my vehicle as well as using wipe fluid every once in a while and it is still working really well now since about 4 months ago. Rain-x you start to notice its weakening significantly in just a couple weeks. The main downside ive noticed is after applying it takes a LOT of elbow grease to fully buff it in. I kept going and going and could still see a haze, took about 15 minutes and a sore shoulder to get it done. Maybe I needed to apply it thinner, but either way Im getting a polishing wheel attachment for my drill for next time.

Best water repellent on the market for sure.

Only works ok. Does not live up to the hype.

I have a car detailing company and I bought this product to try. I’ve tried a lot of different products. The amount of effort it took to buff off this product was not warranted to the water repelling effects. I’d much rather spray on rain X once a week and wipe off then spend an hour trying to get this product off.

I wanted something more powerful and long lasting, so I really feel like this is worth a few bucks more. It's thick like heavy whipping cream and lasts for over a month now, really does shed the water effortlessly.