Chopped Strand Mats consist of chopped glass fibers bonded together using a polyester powder. The mats are designed to be compatible with unsaturated ortho polyester, iso polyester, vinyl ester and a variety of other resins. Chopped Strand Mats are used as backing for gel-coat and standard laminate reinforcements for most contact molding (hand lay-up). AVALIABLE IN 3/4OZ, 1OZ, 1.5OZ, 2OZ, 3OZ and custom widths.