Primer Paint Sealers
Tech Contributor
Joined: Aug 1999
Posts: 14,356
Likes: 6,332
From: At my Bar drinking and wrenching in Lafayette Colorado
If you're down to bare 'glass, you might want to do more than just seal it in order to eliminate the 'glass show-through after painting.
You can first seal the entire car with PPG "DP" series epoxy primer/sealer (like DP-40LF). This stuff is very good, and provides an excellent adhesion base for the subsequent topcoats.
On top of this, I'd recommend shooting a polyester fill primer. Polyester primers are a lot like "gelcoat" in that they're high-building stable catalyzed coatings. This will give you a thick sanding base to cover all strand texture. Most of the major paint suppliers offer a sprayable polyester filler (it's like spraying a coat of "Bond-O" on the whole car). Once you have sprayed and blocked out the polyester, you can then use a high-build urethane fill primer like PPG's K36. This will smooth out and seal the polyester, and will allow you to do all your finish blocking and sanding for paint.
You can first seal the entire car with PPG "DP" series epoxy primer/sealer (like DP-40LF). This stuff is very good, and provides an excellent adhesion base for the subsequent topcoats.
On top of this, I'd recommend shooting a polyester fill primer. Polyester primers are a lot like "gelcoat" in that they're high-building stable catalyzed coatings. This will give you a thick sanding base to cover all strand texture. Most of the major paint suppliers offer a sprayable polyester filler (it's like spraying a coat of "Bond-O" on the whole car). Once you have sprayed and blocked out the polyester, you can then use a high-build urethane fill primer like PPG's K36. This will smooth out and seal the polyester, and will allow you to do all your finish blocking and sanding for paint.
