Weight Calculation

General Composites Discussions Engineering Talk
#1

How do you calculate the weight of chopped strand mat with resin?

I can figure out my final weight if i knew how much 1 square foot of: 3 layers chopped strand mat 2oz, saturated with vinyl ester resin. Just enough resin to wet the mat. Non vacuum bagged.

I know if you vacuum bag csm/resin it uses much less resin.

Also how much does 1sq yard of 2oz mat dry weight? My scale is broken.

#2

chopped mat weight is by the square foot, so 1oz mat is 1oz a square foot.

#3

And about twice as much resin as mat. So FVF ~33%. So mat weight x3 = approx final weight.
Bottom line, heavy!

#4

Thank you guys.