Jim Conlin wrote:

I'm finishing a glass composite boat and intend to use LPU paints.
I've been using Interlux 401/414 , applied by roller and brush. I'm
generally satisfied with it, but it doesn't build quickly. Is there
other primer I should try?

The usual primer for LPU paints is an epoxy (usually solvent thinned) or
sometimes a moisture cured urethane.

The are lots of epoxy companies that sell epoxy coatings with dft of 4 -
16 mils or so per coat rolled. Any would work as a LPU primer.
\
paul oman
progressive epoxy polymers

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