... Cohesive strengthBecasue this product is the positive ion bitumen waterproof coating.while cohere with the concretes layer,it not only ... dry bricks and stones,mortar,concrete,metal,lumber,hard plastic,glass,all kinds of heat insulation layers and all kinds of ... strength with concrete,Mpa≥0.40.6 not suitable for the polymer modified bitumen waterproof coating special for R grade bridge and road