seeking advice clean inside boat cover topgun material

appleo

Petty Officer 1st Class
Joined
Jul 19, 2012
Messages
388
I mad a custom cover for my 18 ft fish and ski......topgun material with vents

works excellent. no leaks. after 2nd year got some mild mildew at stern end.

how best to remove without harming the topgun waterproofing?

thanks
 
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