Below-Ground External Waterproofing Membrane and Ground Level Damp Proof Membrane - Newton HydroBond 402-CSSM

HydroBond 402-CCSM is a high performance membrane for the external waterproofing of below-ground foundation structures, basements, water holding tanks, culverts and tunnel bases. Pliable and durable, the membrane also negates the requirements for a smooth blinding and protection boards when used as a ground level radon DPM.

A composite of LDPE and a non-woven geotextile fleece, the membrane has excellent crack-bridging capabilities at places where cracks occur within the concrete.

When pre-applied before the concrete, the wet concrete is absorbed into the fleece, integrally bonding it to the membrane. This results in a high-strength bond with exceptional peel adhesion qualities, preventing water migration between the concrete and the membrane, even when damaged.

HydroBond 402-CCSM can also be post-applied to the wall surface and can be used alongside other Newton products to provide a coordinated and combined approach to the waterproofing of the whole structure.

Key benefits:

• Full mechanical bond to the concrete prevents water migration between membrane and structure
• Very flexible – Resistant to movement and fissures in substrates
• Unique pre-installed dual component (chemical fusion bond) adhesive laps at membrane selvedge

SUITABLE SUBSTRATE

Raft or slab:

• Concrete blinding

• Compacted type 1 hardcore

• Compacted sand

The following can be placed above the blinding or hardcore prior to the installation of the membrane:

• Void former

• Clay heave board

• Closed-cell flooring grade insulation

• HydroBond 410 GeoDrain