GtechniqAuto G1 ClearVision Smart Glass for Cars, Repels Water off Glass and Windscreens, Easy to Use, Lasts up to 20,000 Miles, 15ml

The process of polishing the glass (by hand using GT polish was tough but due to me applying ceramic n car body I couldn't use DA but the G1 was great to use although I'd like to see a dropper type top like is in EXOv5 bottle to control amount dispensed since there's no sprayer. I have not had it out yet but rain is in forecast so I'll know. I've used rain-x since I was 16 (I'm 64 now) but found rain-x wasn't lasting very long and since I was doing the GTECHNIQ CSL/EXOv5 to my car i bought this as well. Maybe it's the polish but my glass looks phenomenal. We shall see how it works/lasts to determine if i want to pay continued price which is 10x rain-x cost first one-fifth the liquid. I take into account performance so cost isn't always a deal breaker. I hate using my wipers. I'll try to come back after some months or when it fails to update

Water flies off at highway speeds, and visibility in the rain is way better. Lasts longer than Rain-X, but the application is a bit tedious… It takes time and effort to buff off properly. Follow the instructions, and it’s 100% worth it.

The very first step in using this product is to use a different gtechniq product that does not come with it. I had no idea that any other product was even suggested, but ultimately that other product is just a high quality glass cleaner, so you can skip those steps assuming that the glass on your car is clean.I'm very, very happy with the performance of the hydrophobic coating on my windshield. Depending on how much it's raining and how fast I'm driving, I don't have to use my windshield wipers at all because the water will bead up and run off the windshield on its own. Water does not ever form "sheets" on the windshield, it always beads up to small droplets, and if the droplets get too big, then they roll right off the windshield.Applying the product was fairly involved and definitely requires some elbow grease. I would start with the recommended 3 coats for the front windshield, 2 coats for the rear windshield, then use whatever is remaining preferentially on the driver and passenger front windows, then the rear windows. I barely had enough of the coating to get my entire car, which is why I'd recommend making sure that you can get the entire front and rear windshields with enough coats before applying to any windows.Overall I think it took me about 45 minutes to apply, and ~2 months on it still works very very well. I imagine it probably needs to be reapplied every 6-8 months, mostly depending on how long your car sits outside in the elements.

Great glass product

I followed the directions, cleaned the glass with everyday glass cleaners, alcohol and then water. Applied three coats of G1 as directed, in 5~10 minute intervals. Let it dry. Then came the remover and that's where it lost me. I used all of the remover to get the G1 off of the two side windows and rear window of my car. It came off but I hope they didn't intend for there to be any remover left over. It rained today and I drove the car and the G1 coated windows do seem to be mostly clear of water and no residue or spots. I had a detailer put Silicon on the windshield and I think the G1 works better, but the G1 is on the side windows so not facing directly into the incoming rain and may give an appearance of different results. Overall, I probably won't use this again. There are probably easier applications

Rain X is still champ in this field for cost to performance ratio, but I'd say Gtechniq is worth the price. I clay barred the exterior of my car windows, applied as directed, and I was very pleased with the performance. After windows got wet (even from washing), I was able to dry them off with compressed air. When driving, rain rolls off starting at about 25+ MPH (clean windows.) Obviously, if you can refrain from using wipers on the windshield, product will last longer there. Otherwise, windshield needs re-applied over time when side and rear windows are still going strong. Product lasts as long as Rain X, but I find it to be slightly more hydrophobic when properly applied.

I applied the Gtechniq G1 water repellent to windshield and followed the instructions. However, when it rains, it actually makes my windshield hazy, as if were smearing somehow. This did not happen before I applied the product. My windshield was practically brand new and had no mineral deposits. Honestly, RainX was so much better and beaded the water so nicely.

I have not used it for a windshield, but for shower glass, and it works great. Nothing sticks.