E glass chopped strand mat E glass chopped strand mat is made from e-glass chopped strands around 50mm in length, bonded together by powder or emulsion binder which is extremely soluble in styrene. The basic strand has a sizing system containing a silane coupling agent. 1. Excellent impregnation properties 2. Excellent conformability 3. Good mechanical properties 4. Good drapability 5. High tensile strength