I just put a coating on mine over the weekend, black pearl paint. Did this three years ago and it held up nicely for a daily driver in VA.
Most important step is paint preparation like others have stated.
Washed the car, sprayed IronX on lower panels, rinsed then went over with a Nanoskin blue pad (quicker alternative to clay bar). Corrected paint with Flex DA polisher with Menzerna 400 compound (very little dust), followed by a finishing polish and blue pad.
Before you put the coating on, you need to make sure all oils and polish are removed. I sprayed Car Pro Eraser on and wiped off with microfiber towels. You can make your own diluted IPA solution if needed.
Last, I applied Gtechniq CSL coating, same brand I used three years ago. Do small 2x2 section at a time, then wipe away with microfiber, wipe again with another clean microfiber. This is the easiest and quickest part of the whole process. You will need to keep the vehicle garaged for 12 hours while it cures.
I did the hood, roof, pillars and trunk lid a few weeks ago to break up the process.
Just did the doors, sides, front and rear bumper on C7 this past Sunday which took about 6 hours (most of that effort is paint correction, polishing). Glad to be done!
It’s a great coating that really beads nicely and keeps the car looking cleaner, makes car washes quicker. I could have probably gone another year on the previous coating but I wanted to polish out some minor scratches.
DetailedImage has a nice Detailing Guide for reference, great products and service.
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