A couple of recently infused parts have demoulded with small dry areas of crazing on the part surface. I'd sprayed GC50 into the mould first, left overnight and infused the next morning.In both cases full vac was achieved and drop-tested for 30 mins before infusion

This also happened to me when I closed the entrance of the resin and after too much time the vacuum line, because the vacuum has sucked too much resin..so usually I wait the resin arrives in outlet pipe (vacuum tube) and so I close the line of the resin and after a very little time the vacuum line, to prevent the resin to be sucked from the gaps of the tube or of the spiral.

Thanks anyway