Hi,
I made a mould with the Out-of-Autoclave Tooling Prepreg System XT135 following exactly the guide. But after demoulding my piece after the 1st cure (initial cure cycle) I discover that the surface of the mould has some imprefections. It look as there wasn't enough gel coat. 

Do you know where these imperfections are coming from?

How can I remouve them?

Thanks in advance