The short version of the back story is I tried painting calipers over the weekend. VHT primer wouldn't dry and kept pulling every time it touched something, even though calipers had been extensively prepped and cleaned. I shot part of a rear caliper with color and found the VHT real red turned out to be too dark for my tastes and now I want to change color brands and go with Rustoleum.
My question is - for best results, would it be better to strip the off all of VHT primer and then use the Rustoleum primer and color or just use use the Rustoleum over the VHT and call it a day?
Thanks in advance.
I used VHT spray on my rears, didnt have any issues. Are you within the temp and humidity range per the can? I painted junk yard brackets, so i cleaned and wheel brushed them real well to get all the rust off and then used brake cleaner prior to spraying, didnt have any issues with lift/adhesion. If your cans were cold, you can try warming them in hot water prior to shaking them up and a heat gun on your metal parts. I had painted mine over winter/spring so i did both those tricks to get the temps up.
I did put the cans in hot water prior to spraying, so it may have been humidity - although I didn't think it was that bad - but who knows. I wound up putting them out in the sun for several hours to bake and that seemed to help.
Question about the G2 system - I pulled the carrier brackets as well. Do you all think there's enough to do calipers and brackets?
Also the area where the spring sits that holds the pads, I suggest masking that area off, the spring is going to wreck it anyway.
Done so many sets of calipers with:
Clean with brake clean, sand and wirebrush, clean with brake clean... of a lot of blue tape... spray on paint