Vycor® Aluminum Flashing self-adhered flashing is composed of durable, cross-laminated, high density polyethylene aluminum surfaced sheet, backed by an aggressive, pressure sensitive rubberized asphalt adhesive. Vycor® Aluminum Flashing is available in a range of widths: 4 in. (100 mm) and 6 in. (150 mm) to accommodate a variety of job requirements. Ripcord is available in 6 in. (150 mm).