Hi guys, I have ran into this issue before and cant figure out why. Sometimes when I run a part it comes out great and other times it comes out like this. Is this a wet-out issue?

Hand-layed 3 layers of carbon then vacuum bagged
Thin epoxy resin (will do it with polyester resin too)

Any thoughts?

Hi,

Welcome to the forum. It can be hard sometimes to work out what is going wrong, but an initial suggestion is that looks too dry which would suggest a little too much vacuum is being used so reduce the level of vacuum slightly as a first bet.

Warren Penalver
Easy Composites / Carbon Mods - Technical Support Assistant

Ok thanks! I ran this one at -28 in hg. How much lower would you suggest?

try half that at least!  Definitely too much vac currently.

Warren Penalver
Easy Composites / Carbon Mods - Technical Support Assistant

ok I will, thank you Warren!