In the world of professional composite fabrication, the 1708 Biaxial Fiberglass Mat is often regarded as the “Swiss Army Knife” of reinforcement. This engineered material is a hybrid, consisting of 17 oz/sq. yd. of ±45° biaxial fabric stitched to a 0.75 oz/sq. ft. (approx. 8/10 oz) chopped strand mat (CSM). https://www.zsfiberglass.com/1708-fiberglass-mat/