Products / Flex HE903 Modified Bitumen Adhesive

A fibered, SBS-modified, cold-process asphalt roofing adhesive for adhering Flex SBS modified bitumen and other asphalt-coated membranes and for cold-process applications between roofing plies. It is applied by notched squeegee or spray at about 1.5 gallons per 100 square feet over smooth surfaces and about 2 gallons over porous substrates, and is sold in 5 gallon pails and 55 gallon drums. The data sheet lists 80 percent solids by weight, a maximum VOC of 250 g/L, a lap peel strength of 30 lbf/in minimum by ASTM D3019, and states its lap strength adhesion far exceeds the minimum requirements of ASTM D3019.