As a single-component, solvent-based bitumen rubber mastic joint sealant, the Bitumastic is a sealant that forms a tough and flexible seal upon curing. It provides excellent adhesion to concrete, brickwork, asphalt, and most construction material substrates. In order to make the sealant thixotropic and slump-free when applied on vertical areas, the mastic sealant is modified with non-asbestos fibres.
Bitumastic is a blend of rubber and high-quality bitumen carried in a hydrocarbon solvent to improve the application properties. Black in colour and exhibiting a non slump consistency, it cures by solvent release to form a tough flexible waterproof seal.
Bitumastic is ideally suited for sealing and filling gaps and joints on roofs, pointing horizontal chases for waterproofing membranes and felts, sealing around roof/wet service pipes, pointing between brickwork and roof flashings, sealing cracks in asphalt and concrete pavements, filling horizontal joints in concrete and asphalt where movement is not expected.
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