Hi all,

Gelcoat doesn't ACTUALLY fix the pinholes though, they are still there underneath the gelcoat. And quite often, the part comes out of the mould nice and perfect and everyone is happy, but once the part has been in use for awhile or sees some heat cycles or strangely enough just exists for a bit of time, the gelcoat can start to blister away at the pinholes as they are unsupported voids. So down the track, you can end up with a part that is full of pinholes again.