Quote Originally Posted by Jeff Kleiner View Post
Primer is permeable meaning that oils, etc. from the road can penetrate and get under it potentially leading to problems when you go to paint later. If you're going to do this use an epoxy sealer which is impermeable.

Jeff
Can you clarify a bit? Is that an epoxy sealer in place of the primer or to go over it? Does the same apply to body fillers like bondo/rage, etc too?