EdgeSeal is a polymer modified bituminous sheet material intended for use as accessory underlayment. Product is manufactured as a fiberglass mat impregnated and coated with modified bitumen, with a self-adhesive underside and a self-adhesive topside. Underlayment rolls have approximate dimensions of 67ft-3in x 8-3/4in. Underlayment is self-adhered.
Product has met specification requirements of ASTM D1970.