consists of a 56 mil thick rubberized asphalt membrane which is laminated to high density 4 mil polyethylene film on the face and siliconized release sheet on the adhesive side.á The system offers a variety of primers featuring both solvent based and water based formulas. The system provides a non-sag mastic for sealing terminations of the sheet membrane.á The factory controlled thickness assures uniform thickness on the job while the inherent waterproofing properties of the rubberized asphalt and the polyethylene film provide an excellent water barrier.