Ok thanks Craig. When bonding the fibreglass matting how much would you apply? Eg, Run a continuous bead to seal around the edges and then how much coverage in between? Or completely coat the surface?
I've never coated the entire surface, now that would be harder to remove. Haven't seen a need to.
Just enough to provide enough support, you could do a W pattern 50-100mm between the vertical strokes. On upside down surfaces you would use a tighter pattern, on vertical surfaces you would use bigger gaps. And run around the edge as mentioned. I hope that makes sense.