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NBS Source
Newton HydroTank 306 Swell Mastic

Application

Suitable for bonding gas protection hydrophilic waterbars to concrete, plastics and steel.

Can be used as a detailing product for Hydrobond 403 Plus and as a sealant for service protrusions through the structure.

To be applied with a standard mastic gun.

Description

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).


The sealant has high elasticity and high adherence, and it develops a strong adhesive tensile strength immediately after application. The first swelling is time delayed which allows  HydroTank 306 Swell Mastic to be applied to slightly damp surfaces.


Consult manufacturer's literature for relevant surface preparation.


Features and 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% its original size to quickly seal leaks at joints in the structure.
  • Resistant to the high alkalinity of concrete.
  • Maintains very high elasticity and tensile strength, even when swollen.
  • Age resistant, no embrittlement.
  • Suitable substrates include concrete, steel, plastics and rubber.
  • Has a service life that can be equal to the design life of the structure.

General information

Color

Grey

Finish

Smooth

Grey matte

Material

Liquid

Hydrophilic paste- single-component, polymeric adhesive sealant

Shape

Other

Paste form.

Uniclass

Pr_30_31_76_39 Hydrophilic sealantsPrimary

CAWS

D40/565 Proprietary waterstops

E40/320 Hydrophilic waterstops

Product range

Waterbars, Waterstops and Waterplugs

Specification data - Hydrophilic sealants

Standard

The construction should conform with the current Building Regulations, British Standards and relevant Codes of Practice.

Material

Hydrophilic paste.

Specific gravity

1.3.

Tack free time (hours at 23°C and 60% Relative Humidity (RH))

<8.

Tensile strength (MPa)

5.8.

Elasticity

Up to 11 x initial size.

Swelling capability

Up to 3.5 times initial size.

Watertightness (bar)

1.0.

Installation temperature (°C)

5°C to 40°C.

Service temperature (°C)

-40°C to 100°C.

Environmental information

Contains Red List materials

Yes

Country of material origin

Belgium

Country of product manufacture

Belgium

Embodied carbon

0 kg·CO₂e/kg

Recyclability

0

Recycled content

0 %

Literature

Newton HydroTank 306 Swell Mastic

Newton HydroTank 306 Swell Mastic

HydroTank 306 SDS

HydroTank 306 SDS

Case studies

Waterproofing the Hotel Football in Manchester

Waterproofing the Hotel Football in Manchester

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