Introducing - Voodoo Auto Kits.

[MikeB]

its less labour as Mark says, I'm no expert but with a traditional mould you have to apply the resin by hand then layer the FG then layer etc, very messy.

Where as with bagging it you lay the FG in the mold seal it in a big vacuum bag and use a pump to suck all the air out. The difference in pressure between the atomosphere and zero pressure vacuum is used to pull resin through the FG. If you get it right it can save time and up quality.