How to deal with GRP resin spillages and splashes

Loud banging or cracking is coming from my GRP fibreglass roof

My GRP roof has standing or is ponding water

The GRP roofing resin system hasn't cured

The resin system is curing too fast in the bucket before it can be applied to the roof.

Water has got onto the uncured GRP roof and now I have white spots on the surface

The GRP roofing topcoat has cracked

I'm in the middle of applying the base resin or finishing topcoat and it's started to rain

The GRP roofing topcoat is still sticky or tacky to the touch