Chase - Waterproofing and Gas Resistance Membranes
LONGSEAL 100 is a high performance, cold applied waterproof membrane, manufactured from tough cross-orientated HDPE film to a layer of rubber modified bitumen adhesive. The advanced backing film gives improved technical performance on tear strength and tensile strength, puncture resistance and dimensional stability. It also offers good conformability for site application.
LONGSEAL GR is an advanced waterproof membrane capable of resisting the passage of methane gas. The membrane is manufactured from an aluminium and cross-orientated HDPE film laminated to a layer of rubber modified bitumen adhesive. Independent tests show that this advanced backing film and adhesive layer provide good technical performance for the suppression of methane and radon gases. The membrane offers good conformability for site application, both membranes should be covered as soon as possible after installation, with a cementitious screed or similar protective layer.