Hi all,

I've just demold a countertop and find these spot all around the top. Someone can explain me why it does this and how not to happen again please?

Thank!

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could be a mixing issue or you maybe you had wax on your surface. what did you use to caulk the edges? did you use wax and caulk or clay?

The other thing it could be that the backer coat went through the face coat.

I waxes the edge to caulk with silicone. But i always clean the mold with paint remover before spraying. I'd like to try clay but I don't know where to find it in Canada.

Guido said:

could be a mixing issue or you maybe you had wax on your surface. what did you use to caulk the edges? did you use wax and caulk or clay?

The other thing it could be that the backer coat went through the face coat.

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