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It's ALL in the prep with whatever you choose.
G2 is time consuming. The amount of cleaning you have to do to make sure there is no brake dust and or rust...etc. Everytime I do it I ask myself half way in why I just didn't buy new calipers and send them to a powder coater... it would be cheaper and it would never come off. Keep in mind whatever you do will eventually chip/flake off. As much as I like g2 caliper paint and it is what I used on the CT, all cases I've done it will last several years before it starts to eventually come off.
G2 should be stronger than anything from a can because you are mixing hardener with the paint. That will make it much stronger than what's coming out of a spray can short of you following up witha 2k clear coat. This isn't a hard project but just time consuming with the amount of cleaning/then multiple coats. I did 4 coats on the CT's calipers. I probably could have squeezed in another 5th coat but by the time you have between coats and then eventually having the paint getting harder it wasn't worth the risk of seeing streaks or globs.
It's important to know if you do go with g2 caliper paint NOT to use their brake cleaner that is provided. It's non-chlorinated. Why is that important? It leaves a residue behind which is not what you want when applying paint. You want something like the Brake Klean Chlorinated stuff. You can buy a gallon of it on Amazon. Metal wire brushes are your friend in cleaning them up. They can never be too clean.
You also don't want to use the crappy brush that's supplied in the kit. The bristles will fall out and leave a mess. Go to lowes and by the cheap $1 brushes and buy like 5 of them. Cut the bristles down shorter as it's easier to paint compared to if the bristles are long. Then after each coat on all 4 calipers, throw the brush out and use a new one. It will make your life way easier.
I do think it looks nice. Luckily my car came from FL so there was no salt /rust on them like it would have been here in VA or PA after a year or so. if there was I would have just bought new calipers. I would say the total time that I spent was at least 6+ hours on the calipers.
It's a subtle look. I choose blue because of the hybrid theme and will continue the blue theme to the headlights I'm doing starting in june.
I didn't want anything flashy since they are tiny calipers. G2 works best on this type of caliper in my opinion rather than a huge smooth brembo. The texture on the caliper helps greatly.
-Nigel