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Index Building Products Ltd

Proteaduo waterproofing membrane

Proteaduo is a composite waterproofing membrane where the reinforcement
is impregnated with SBS bitumen; the underside, in contact with the substrate, is made from SBS bitumen while the top face is made from APP bitumen.

The elastoplastomeric compound of the underside contains distilled bitumen and thermoplastic rubber made from a block copolymer radial butadiene styrene. It has an ultimate elongation of 2000%, a flexibility in cold weather which reaches –25°C and an extremely high resistance to thermo-oxidizing ageing. The elastoplastomeric compound of the upper face's protective layer contains distilled bitumen, atactic polypropylene, isotactic and polyolefinic elastomers which are resistant to U.V., it has stabilizing additives
against thermal shock and a softening point of over 150°C.

The reinforcement is also the result of thorough research into the strengthening of waterproofing membranes. As it is well known, "non-woven" polyester fabric, while being resistant and elastic, is more sensitive to temperature than mineral fibre reinforcement and can cause the membranes to deform. The traditional coupling with fibreglass solves the problem of stability but even during application the bending of the membrane causes tiny breakages in the fibreglass which can damage the bituminous mass which covers it.

For more information on this product, contact us.

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