I have tried the hard shell layup method, placing the glass over wet
slurry, and glassing straight onto the foam, I cannot detect any real
difference in the end result from all three methods, is one superior to the
other? The only difference I could find is the hard shell was fractionally
heavier than the other two methods, I thought maybe glassing straight onto the
foam gave a better bond, but its very had to tell, I am glassing onto urethane
foam of about 70 lbs per cubic metre density.
just out of curiosity, I have also experimented with removing peel ply when
the resin is cured and when its still green, if you pick just the right time
when its green, it peels off very easy, but I tend some times to get some light
spots which look like the glass has pulled a way from the foam, is this what
happens if you remove the peel ply too soon???
Chris Johnston
North Richmond NSW
Australia
