Stained Fiberglass Door

Darlene asked 10 years ago

I live on the gulf coast where humidity is high. I stained my fiberglass door with Zar stain and sealed with Spar Urethane. It looked great. Over the winter the door was covered with mold.

I had to remove the urethane and restain. Now I’m afraid to put more urethane on the door because I won’t be able to clean the mold. Every time I clean the mold off some of the stain gets removed. Any suggestions?

1 Answers
Crowder Painting answered.

How many coats of the clear finish did you use? You should have at least 2 coats for good protection, 3 thin coats is better. The stain shouldn't be removed if there is enough clear finish protecting it.

Suggest a very good cleaning, restain if needed and clear coating with several thin coats.

You could try a tougher clear coat. Use McCloskey's Man-O-War Marine Spar Varnish, very tough and UV resistant when fully cured.