Wet chopped strand is cut in a length from fiberglass roving, treated by sizing based on silane or starch to make surface mat, roofing tissue, etc. It is easy to disperse. GLASS TYPE:E-glass or C-glassSIZING:Silane or StarchLENGTH:12-18mmFILAMENT DIAMETER:11-13micronMOISTURE:8-12%