Originally Posted by tech69
so one last question... We like to use epoxy, poly primer,2k for last round of blocking, and epoxy as sealer...If we substitute the epoxy fill primer for the 2k would it be ok to not seal? Seems so but just wondering.
I do it all the time I hardly ever use a sealer (even epoxy ) Only on high end super straight work do I use an epoxy sealer when I do seal I always sand it before paint.
If youve ever sanded an after market panel(like a hood )you;ll sand the primer off in many spots (I usually sand all that cheap primer completely off)or if you strip a panel and it dosent need any filler work you can reduce the SPI to 20-40% and after spraying two coats go right to paint,it flashes pretty fast.