William R. Watt wrote:
Lew Hodgett ) writes:


The above applies ONLY to polyester, mat and roving.

It definitely does not apply to knitted glass and epoxy where the
glass/resin ration is about 50/50.


The above applies ONLY to vacuum bagging. 70% resin is optimistic for a home
builder filling weave by hand.

I don't agree either. 30% glass might be for a weak chopper gun
layup, but it's pretty easy to get up to 40-45% even with mat/roving
combinations. For knitted glass figure 50/50 without vacuum bagging,
maybe 54% if bagged.

Evan