Description
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 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 that includes protection against water penetrating through construction joints, through and around service entries and to movement joints.
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
Applications
- As a continuous Type A, externally applied waterproofing membrane and radon barrier to earth-retained structures
- Below slab DPM and Radon DPM without the need for smooth blinding and protection
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 402-CCSM:
- Void former
- Clay heave board
- Closed-cell flooring grade insulation
- HydroBond 410 GeoDrain
WALL FORMWORK
- Existing structure
- Secant or contiguous concrete piles
- Metal sheet piles
- Diaphragm walls
- King post wall
- Sufficiently stable ground such as clay or chalk
- Temporary timber shuttering/formwork
Technical Data
| Installed Performance | Results |
| Service temperature | -40ºC to +100ºC |
| Adhesion to concrete – Pre-applied | 0.55 N/mm² |
| Adhesion to concrete – Post-applied | 0.55 N/mm² |
| Lateral watertightness – Pre-applied (28 day test) | 500 kPa |
| Lateral watertightness – Post-applied (7 & 28 day test) | 120 kPa |
| Elongation at break (Machine) | 29.3% |
| Elongation at break (Traverse) | 53.3% |
| Tensile strength (Machine) | 684 N/50 mm |
| Tensile strength (Traverse) | 477 N/50 mm |
|
Watertightness – 60 kPa for 24h |
Watertight |
| Watertightness – 400 kPa for 72h | Watertight |
| Resistance to static loading – 20 kg load | Watertight |
| Resistance to impact – AI plate – 200 mm drop | Watertight |
| Resistance to impact – EPS panel – 700 mm drop | Watertight |
| Joint seam strength – 80mm adhered overlap | 423 N/50 mm |
| Resistance to tearing – Nail shank – Machine direction | 252 N |
| Resistance to tearing – Nail shank – Across | 306 N |
|
Durability against chemicals – 23°C for 12 weeks |
Watertight |
|
Durability against chemicals – 60 kPa for 28 days |
Watertight |
|
Durability against thermal ageing – 70ºC for 12 weeks |
Watertight |
|
Durability against thermal ageing – 60 kPa for 24 hours |
Watertight |
|
Compatibility with Bitumen – 70ºC / 28 days |
Watertight |
|
Compatibility with Bitumen – 60 kPa / 24 hours |
Watertight |
|
Water vapour diffusion resistance – Sd value |
365 m |
|
Water vapour diffusion resistance – μ value |
301653 μ |
|
Water vapour diffusion resistance |
1825 MNs/g |
|
Radon gas diffusion coefficient |
0.39 x 10-12 m2/s-1 |
| Resistance to fire | Euroclass E |
Product Data
Code: 402-CSS-M
Packaging: Roll: 20.0m x 1.0m (402-20) / 20.0m x 2.0m (402-40)
Colour: White and Blue
Area: 20m² / 40m²
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