Hi all,

I have been trying to pull vac on a panel in making and I can pull but not hold vac.

I started off with just a bag around the top face, edge taped, and after an hour or more of no joy put a second bag around the whole mould and first bag,

this still will not hold vac SO is it simply a case of poor bags (pin holes) or have I lost the plot!

Yeh even so, you will likely still find that it's in the seal. Holes in the bag tend to make a hiss that you can hear. Sometimes you get a hole that doesn't make any audible noise, but in my experience it's usually in the bagging tape. Things like a single fibre can be virtually invisible but still cause a leak. It's a tedious task when you get a leak that you can't find in the first 10 minutes.