Overheard a painter at the supply house in Everett say he never sands past 600 for primer

I was picking up some 2K clear and heard him telling a new guy that going finer just makes the base coat slide around and not stick right... I've always gone to 800 or even 1000 for a slick finish before color. Tried his way on a Honda fender repair last week and the adhesion was way better, no fisheyes. Anyone else skip the super fine grit before base?

3 comments

3 Comments

carter.mila23d agoMost Upvoted

Did he mention what primer he uses? Some of the newer high-build stuff might not need as fine a finish to work right.

adam_baker23d ago

Actually saw a guy at the track just scuffing with a red scotch-brite pad before laying down primer, and his paint held up fine all season.

olivia67023d ago

My uncle's body shop in Tacoma switched to 400 grit for primer prep about five years back. They found the same thing, that too smooth a surface just gives the paint less to grab onto. Sometimes the old school way of doing things sticks around for a reason.