Fast-curing, swellable, single-component, polymeric adhesive sealant. The special composition of HydroTank 306 Swell Mastic makes the sealant swell when in contact with water (to about 200% of original size).
01732 360 095
HydroTank 306 Swell Mastic
Key Benefits
Key Benefits
- Very high resistance to water pressure.
- Delayed swelling – will not swell during the installation process or during the concrete cure.
- Swells up to 200% of its original size to quickly seal leaks at joints in the structure.
- Very resistant to the high alkalinity of concrete.
- Maintains very high elasticity and tensile strength, even when swollen.
- Age resistant, no embrittlement.
Typical Applications
Typical Applications
- Detailing product for HydroBond 403 Plus.
- As a swelling adhesive for the installation of Newton System 300 hydrophilic waterbars.
- Sealing of service protrusions through the structure.
- To further waterproof around pipes sealed with Newton 307 PipeSeal.
Technical Data
Technical Data
| Cured performance | Result |
| Tensile strength | 5.8 MPa |
| Elasticity | Up to 11 x initial size |
| Swelling capability | Up to 3.5 times initial size |
| Watertightness | 1 bar |
| Installation temperature | 5ºC to 40ºC |
| Service temperature | -40ºC to 100ºC |
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