HE903 - Modified Bitumen Membrane Adhesive - High Solids is a premium, modified and rubberized, cold process, waterproofing roofing adhesive which contains low solvent content compared with conventional cold adhesives. This high solids fibered formulation is modified with SBS rubber polymer resulting in a high strength bond when used to adhere SBS modified bitumen membranes and other asphalt based roofing sheets. It exhibits excellent low temperature flexibility and lap strength adhesion properties. It does not require red label solvent identification. It reduces the possibility of solvent vapor entrapment, thereby eliminating the potential of membrane softening or damage.