Interlux 404/414 is not a barrier coat. It's a sandable primer whose
function is to provide a tie coat between sime substrate and an impervious
finish coat such as an LPU paint. If applied as directed, it's just loaded
with expensive solvents and is consequently pretty porous. Useless under
bottom paint. If you are using it as a primer under finish paint and not
under bottom paint, go for it. I'd try acetone. Let us know your result.

"Robert or Karen Swarts" wrote in message
...
Can I successfully use acetone to thin epoxy barrier coats? I am thinking
of
Interlux 404/414 in particular, but the question is also a general one.

I am aware that there are proprietary products for this application, but I
need to paint tomorrow morning, and the nearest dealer is about 60 miles
away.

Bob Swarts