- Q.What is the best way to
remove paint or varnish from a fiberglass
contractor Ed Fillbach responds: Before
removing the door from its hinges, wash the door
with warm water and common household detergent.
Rinse the door well, and allow it to dry. Remove
the door to a cool area (55ºF to
65ºF) and lay it across sawhorses at a
comfortable working height. Be sure to cover the
floor area to avoid damage from spilled paint
remover. Remove the door hardware.
The best paint removers are citrus-based, and
can be bought at any paint store. They’re
effective for removing either latex or oil-based
paint and won’t damage the fiberglass.
Apply paint remover to a small area (4x4 inches)
to test the time needed for the paint remover to
work. Depending on the number of layers of existing
paint, it can take from 5 minutes to an hour for
the paint remover to work.
When the test is complete, brush a liberal
amount of paint remover on the door, brushing in
one direction. Remove the residue with a small
nylon scrub brush, which will help remove any paint
remover remaining in the fiberglass grain. Rinse
well, according to the paint remover