sanding primer

Posted by mike aguado on Jun 13, 2005

how much should i do?I sanded the first coat of primer with 120 grit(brightside high build pre coat)and damn near sanded it back to the epoxy!(having a hard time with translucent)second coat says to sand with I use my dewalt and 220 or a hand block?do I sand to eliminate all low spots... TIA,Mike