The pop top on our van is 35+ years old and the surface has gone quite chalky - it's still watertight with no obvious delamination but lots of crazing. Does anyone have any experience of using flowcoat on similar surfaces (grp) or on boats - as this keeps cropping up when looking at solutions to prolong the life of the top and secure it's waterproofness? The top has vertical sides - will flowcoat adhere to these or just run off? Would I have to grind the whole roof back to remove the original gelcoat before I could apply flowcoat? The best way to apply flowcoat? Can I do part of the roof and then another part later - or would I need to do the whole thing in one go? Please drop me a DM if you can spare me some aggro and experimentation. Thanks
Been a while since playing with boats, but flowcoat over cracks is a very short term fix, cracks will work through the flow coat very quickly. A real fix, is to sand off the gel coat and epoxy paint over it.
Yep, the coat underneath just keeps shrinking once it's crazed. For a camper top I'd use car wrap nowadays (they make it for boat hulls these days as well).
Thanks for those suggestions all - I hadn't thought of car wrap as an option but will look into that (although the roof isn't a flat surface but has dips moulded into it presumably to add strength so that might not work?)
I'll get in touch with Tourershine to see what they suggest
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