That's certainly a reason to be cautious.
Perhaps the difference is that the old glue is softened so much quicker by
the paint remover than paint would be, that it can be scraped and washed
long before the polyester resin would be affected.
I wasn't aware of the other paint remover you describe. I'll try to remember
to look for it if I'm ever faced with the need.

"Bruce In Bangkok" wrote in message
news
I guess that the reason I am rather gun shy about paint remover is my
initial experience with fiberglass. Bought a elderly fiberglass sloop
and, as I would with a wooden boat, proceeded to remove the paint
using paint remover. The first part, a hatch cover, had been soaking
only a short when I "tried it" with a paint scraper and scrapped off
the paint, gel coat, n' everything. Frantic water blasting with the
hose saved the cover but I did need to use a lot of high build primer
before I painted it.

As general information, that you may already know, they now make some
sort of "paint remover" that is safe to use with GRP. You slosh it on
and then cover it with old newspapers. After a while you peel off the
newspapers and the old paint comes with it. Environmentally friendly,
I guess.