This one is a pain but as a last resort I use abrasive blast.
I start with walnut shell and low pressure to get the best control
and give myself some leeway as it won't eat the fiberglass too fast.

Not fun in any case.

michael

fraggy wrote:

hi
This is being a real pain, on a ridged fiberglass deck there is some
anti-slip paint that I cant get off even with sanding as this will flatten
the ridges.

GRP safe paint stripper doesnt work either.

fragged