Quote:
Originally Posted by toomanytoyzz
I would say sand off the old primer. If it's cheap, autopart store primer I wouldn't put a higher quality 2 part epoxy over top of it. Epoxy is supposed to be sprayed directly to bare metal. I've been doing autobody for 13 years, and if there is one rule of thumb you should follow is spend the time and do it right. Autobody is a very tedious and time consuming trade, and there is nothing worse than trying to save yourself a little bit by cutting corners only to have to do it all over again  . |
...it will also go well over a coat of etching primer applied first.