resin quantity?

help I am building a hardtop approx 8 by 11ft devinicell core with 1 layer of mat and 1 layer of glass cloth on top and bottom. I want to how much resin I will need. jt

 

my guess would be a 20L(5gal) pail,,,with some to spare.

 

John,

For hand lay-up a glass to resin ratio of 0.33 is a safe (conservative) aim. Knowing this you have to weigh the cloth and calculate the amount of resin needed. Make some extra, just to be sure.
If you don't feel confident, go to your local GRP-shop, they'll be glad to help.

Good luck.

 

There is a formula SP use

Resin harder mix required (grams) = AxNxWfxRC x1.5
(1-RC)


Where A = area of laminate (sq.m)
N = number of plies
Wf = fibre weight of each plie (g/sq.m)
RC = resin content by weight

Typical R.C.’s for hand layup manufacturing are:
Glass 0.46
Carbon - 0.55
Aramid - 0.61

resin has approx density of 1.1g/cm3

Mojo