Hi,=0A-=0AYou will need to peel ply your part avoiding wrinkles and crink
les /folds, as they will leave marks, followed by a wading / wick layer,tha
t soaks-up the excess resin that will be squeezed out ,-the timing of t
he vacuum will contribute to the amount of resin that is squeezed out of th
e lay-up if you suck too soon you will have a dry weakened joint. also ligh
ter if that is your goal. =0A-=0AThe bag has to be carefully designed /co
nstructed carefully to conform to the shape of the item.=0A-=0AYour compl
ex bag with taped joints will be difficult to seal on any wrinkles and crea
ses,=0A-=0AThe vacuum hose connection point needs to be clear of-the pa
rt you are making-as it will leave a mark in the finished piece.=0A-=0A
Check your hose and fittings before your next job.. its impossible to get a
vacuum if its blocked with resin off your last job!=0A-=0AIf you- are
not supported fully with your mould it will distort under 15 LB a square in
ch pressure,leaving low spots.=0A-=0AThe vacuum-process is essential wh
en forming repair sections as it is the-best method that will produce con
sistent adhesion within the varius layers of glass-and foam-with-high
strength /less weight.=0A-=0AThe applications you are suggesting are tri
cky- but nothing is impossible, if you work backwards from the the finish
ed article, and have loads of time, are very lucky and have many talents an
d are gifted (or have a good mentor)!=0A-=0AThere a a few cheeky ways of
getting perfect results from poor surfaced moulds but that is for another d
ay!-=0A-=0AThat's all there is to it (up till now )!=0A-=0Aoh yes if
you vacuum on to a mould,spread your -release wax to a point well clear o
f the mould area on to your backing piece or expect to use your angle grind
er to cut it free-.=0A-=0ARegards=0A-=0AKevin=0A-=0A-=0A-=0A
=0A=0A________________________________=0A From: spcialeffects <spcialeffect
s@aol.com>=0ATo: europa-list@matronics.com =0ASent: Wednesday, 29 August 20
12, 19:35=0ASubject: Europa-List: Vacuum Bagging=0A- =0A--> Europa-List
message posted by: "spcialeffects" <spcialeffects@aol.com>=0A=0AHi all, jus
t about to start building my chock but have been looking at vacuum bagging
when building the foam surfaces and just wanted to get peoples views and ex
periences thanks=0A=0A=0A=0A=0ARead this topic online here:=0A=0Ahttp://for
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