Henry PR400042 Adhesive Cement, Black, Liquid, Paste, 1 gal (Pack of 4)

For bonding and cementing asphalt coated sheets to properly prepared roof surfaces. "Sets" by loss of solvent content through evaporation. Formulated for use as an adhesive between plies of asphalt coated or saturated roofing sheets such as double coverage or selvage edge roll roofing. Covers approximately 50 sq-ft per gal. Coverage rate varies depending on texture and porosity of surface.