71 chevlle· Registered
Discussion Starter · #1 ·
I just laid down a coat of epoxy on underside of fenders, hood,trunk lid and all jams:hurray:.Just wandered what grit to scuff the epoxy before applying 2k high build primer?
Is that what they say? I don't use SPI but all the others I've used recommend a red scotchbrite. HOK, Transtar, PPG, R-M. Is the 80 recommended prior to the epoxy? I've shot over it 3 or 4 days later with no problems. Even EDP recommends only a scotchbrite. The good kind of EDP that is.SPI recommends 80 grit. I'd use it even inside the 7 day window just to be safe.
You're right. 80 grit on the bare metal BEFORE epoxy. Sorry, I wasn't awake yet I guess.80 grit is what you use prior to epoxy (What Barry recommends for SPI Epoxy). I would guess a light scuffing like you state would work but you might want to post on the SPI site to get the answer your looking for.