A solvent-free, rubberised bitumen emulsion which dries to a tough, black coating providing a highly effective cold-applied, damp-proof membrane in sandwich constructions. It can also be used as a waterproof for floors, walls and other above ground structures and acts as a curing membrane when applied to green concrete. It is equally effective as an adhesive for wood blocks, wood mosaic panels, insulation boards, expanded polystyrene and cork panels, or as a plaster bonding agent on difficult surfaces. It can also be applied to damp surfaces. Resistant to extreme heat and cold and has a low odour.