Composite Mold Materials Calculator
Estimator for Composite Molds Built with Chopstrand Mat
The calculator below is to estimate the amount of material you will need to make a solid laminate mold or even a part from chop strand mat and polyester, vinyl-ester, or isophthalic resins.
Simply enter in the square feet of your mold or laminate and the desired thickness and it will calculate how many layers of 1.5 oz chop strand mat, gallons of resin, gelcoat for 1 side, yards of mat needed (in 50” or 38” widths) and catalyst is needed.
IMPORTANT: This is an estimation, it does not take into account wastage (how much resin is left in the bucket or gets spilled on the floor). Final laminate thickness can vary due to a number of factors such as differing laminating styles, geometry, etc.