Meets the requirements of ASTM D 4601
High-Quality SBS Rubber and Asphalt Blend: Provides full recovery properties after 100% elongation and lends elasticity and flexibility to the sheet.
Fiber Glass Reinforcement Mat: Offers excellent dimensional stability and tensile strength and withstands differential movement.
Polyolefin Burn-Off Film with a Self-Adhering Modified Bitumen: The top side polyolefin burn-off film promotes ease of heat welding for installation of a heat-welded cap sheet such as DynaWeld Cap 250. The bottom side has a self-adhering surface with an easy-to-peel plastic film sheet that allows for installation without the need of hot asphalt or heat welding.