Hey all, I've seen a lot of mention of G2 caliper paint on the forums here and I've not seen any bad reviews of it, but I chose to go with the Duplicolor kit and just finished painting my calipers yesterday, so I thought I'd put my thoughts out there.
The main reason I chose not to use the G2 kit is that its a two part paint, and once you mix the 2 parts together, you have between 4 and 6 hours to use it before it cures in the can too much to use. I don't have the equipment on hand to get this job done in 4 hours (assuming you have to leave the wheels off for a time to let it cure before re-mounting them), so the G2 simply wasn't an option for me.
For about $17 at O'Reilly's, I got a black satin Duplicolor kit - http://www.duplicolor.com/products/caliper.html
- and finally got around to painting the calipers. It was pretty much an all day venture, since you have to give the paint 2 hours to cure before you put the wheels back on, so I did it in for separate "sessions" yesterday. It was about 85 out, sunny and breezy, so it was a good day for this project.
The kit includes everything you need ... sort of. It's got brake cleaner, stir stick, 8 oz of paint and a brush. You've also want a toothbrush or something else to scrub off the calipers, and probably another paintbrush or 3, if you're going in stages like me, since letting it dry on the brush for 2 hours pretty much destroys the brush.
One thing I noticed is that when it says to stir the paint for 1 minute, make sure you listen. You can actually feel all the sediment at the bottom of the paint can when you start stirring, so you need to make sure you get everything mixed up right. The paint itself went on very well - I am not an expert painter and I managed to lay down a couple coats that came out pretty smooth. I found 2 coats to be just right for the black, but if you choose some of the lighter colors (like yellow), you may need a 3rd or even 4th, depending on how thick you lay it on. But in my case, I just used two slightly thick coats and I like the way it came out.
The satin black is actually glossier than I thought, but it's also possible that as it cures longer it will lose some of the shine. I went with black because it's a bit different from what other people have used (red seems most popular and the blue wouldn't match my Winning Blue well enough) and I am a bit more subtle. I considered yellow, briefly, but went with black instead.
Unfortunately, my camera is sitting in my office right now so I can't get good pictures up until tomorrow, but I'll be sure to get some tomorrow evening.
Overall, I am very pleased with the Duplicolor kit - if I had access to a lift or more convenient equipment, I would have chosen the G2 kit. But since I don't have that access and had to do things one wheel at a time, the Duplicolor kit was perfect, and it doesn't hurt that it's less than 1/2 the cost of the G2.
I should also note that I have at least enough paint left to do 4 or 6 more calipers, and had I not painted my rear rotor hubs as well, I would probably have enough left over to do 2 more full cars. Again, the black didn't require a 3rd layer either, which helped, but even the other colors should have enough for 2 complete cars.
If anyone else has experience with Duplicolor paint, please let us know, since I wasn't able to find much info on anything but G2.