Quote Originally Posted by HOTRODPAINT
Two part primers are well worth the money. They build a much more stable surface, that doesn't swell from solvents, then shink later to expose imperfections and body work under the primer.

Everyone worries about the primer as a moisture barrier, but I guide coat and wet sand the 2K primer on all of my jobs, including "from bare metal" work, and in the last 15 years I've been using it, I've NEVER had rusting underneath!!! I'm confident enough to guarantee every job for as long as you own it...........and I sleep just great at night! :-)
Guys, I didn't open this thread to debate the various ways and materials to paint a car - there are about as many ways to paint a car as there are painters. This thread is only to describe what Brookville uses and the fact that it is best removed - their words - before final paint.
Painting debates are in other (many) threads.

As a note -
A. Brookville does NOT use 2K primer. Acrylic primer is NOT 2K. It is the old standard primer/thinner. It has a pot life of about as long as you can keep air away from it to induce drying.

B. 2K is a polyester base material with activator and has a pot life of a few hours to a couple of days.

C. Epoxy is a bare metal sealer and can also be used as a 2K sealer by some