Externally Applied Waterproofing Membrane: Newton 403 HydroBond

Newton Waterproofing Systems (John Newton & Company)

Newton 403 HydroBond is a very high performance composite sheet membrane that features a locking fleece to one side and a polymer hydrophilic coating to the other.

When placed below the new raft or against permanent shuttering, the Newton 403 HydroBond fibres are encapsulated into the wet concrete becoming monolithic to the surface. The fully engaged membrane prevents water tracking to the joints in the structure, should there be a defect.

Key benefits
• Full mechanical bond to concrete prevents water migration between membrane and structure
• Hydrophilic coating provides self healing of punctures to the membrane
• Very flexible – Resistant to movement and fissures in substrates.
• Applied under the raft and to the walls to fully encapsulate the structure.
• Excellent resistance to the high alkalinity of concrete.


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Newton Waterproofing Systems (a trading name of John Newton & Co Ltd), Est 1848, is the UK’s leading independent supplier...
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