Emulsion Chopped Strand Mat (CSM) is produced by chopping assembled roving into 50mm lengths fibers and dispersing these fibers randomly and evenly onto a moving belt ,to form a mat,then an emulsion binder is used to hold fibers together, then the mat is rolled on production line continuously. Fiberglass emulsion mat(Colchoneta de Fibra de Vidrio) conforms easily to complex shapes (curves and corners) when wet-out with polyester and vinyl ester resin. Emulsion mat fibers bonded closer than powder mat,less air bubbles than powder mat during laminating, but emulsion mat can Not compatible well with epoxy resin. Common weight: 275g/m2(0.75oz), 300g/m2(1oz), 450g/m2(1.5oz), 600g/m2(2oz) and 900g/m2(3oz).