painting after soda blasting

[WALLY1971]

i am restoring a1971 LT1coupe. After soda blasting, do I have to resurface the gel coat? All gel coat is gone from sanding before last paint job. DA sand marks can be seen all along the body. Fuzzy fiberglass can be felt. What's the next step.

Wally

 

[Jack]

Wally:
Just want to welcome you aboard CAC ... lots of friendly helpful folks here. I'm not much on paint & body ... Surely someone else will chime in to help you.
JACK:gap

 

[JohnZ]

i am restoring a1971 LT1coupe. After soda blasting, do I have to resurface the gel coat? All gel coat is gone from sanding before last paint job. DA sand marks can be seen all along the body. Fuzzy fiberglass can be felt. What's the next step.

Wally

Corvettes never had gelcoat - just the smooth finished surface of the panels created by the polished surface of the molds, and they were primed and painted directly on that natural surface. If you have "fuzzy fiberglass" on the surface, you'll need to gel-coat the entire body to seal the "hairs" down and then block it before doing anything else. :eyerole

 

[Glen Braxton]

I think the preferred method today is to use an Epoxy primer such as PPG's DPLF. That's what I did this past spring.

Maybe Paint Daddy can step in here and lend a thought or two.

 

[JohnZ]

I think the preferred method today is to use an Epoxy primer such as PPG's DPLF. That's what I did this past spring.

Maybe Paint Daddy can step in here and lend a thought or two.

I agree, for minor issues - that's what my painter uses as his "standard", with great success. However, for "hair jobs" where the surface has been blasted improperly, he won't touch that kind of a job without gel-coating it first. Saw one at his shop last month that had been brought in on a trailer for an estimate that had been blasted and had "hair" all over it, and he wouldn't even give the guy an estimate - the entire surface had been destroyed by over-aggressive blasting - it was junk. :cry