Vacuum bagging
This is a build log of vacuum bagging Here the vertical fins of a swept flying wing are being vacuum bagged.. The same technique can be used for any part.. (just that this is the one I documented) Of the different methods, this one uses a thin PET sheet as the finishing surface. This is different from using a peel ply. materials:- thin PET sheet, mold release wax, vacuum bag/ polyethylene sheet, vacuum bag sealing tape, some plastic pipe, vacuum pump/ brake bleeding pump. The foam blanks are readied.. making sure that surface finish is good and smooth and the surfaces are cleaned .. it needs to be understood that ANY surface imperfections more than the thickness of the FG cloth will be visible after glassing.. therefore though this step may seem trivial, it is quite important The pet sheet is cut in the shape of the part to be glassed, one for each side. At this stage it is not important for it to be absolutely accurate, I keep around 1cm excess all around......