HDPE surfaced bituminous waterproofing membrane Properties • Cold applied, self adhesive and easy to apply • Excellent adhesion to vertical and horizontal surfaces • Excellent resistance to chlorides, sulphates, dilute alkalis and acids • Good tear and puncture resistance • Water and vapor proof Description Bitustick 15 is a self adhesive polymer modified bituminous, waterproofing sheet membrane, laminated onto a tough HDPE film on one side and a silicone release film on the other. Bitustick 15 conforms to the requirements of BS 8102.