Swelling adhesive mastic.
Suitable for bonding Newton System 300 hydrophilic waterbars to concrete, plastics and steel.
Can be used as a detailing product for Newton 403 HydroBond and as a sealant for service protrusions through the structure.
To be applied with a standard mastic gun.
A high-quality, firm, fast-curing, swellable, single-component, polymeric adhesive sealant. The special composition makes the sealant start to 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 Newton 306 LeakSeal to be applied to slightly damp surfaces.
Consult manufacturer's literature for relevant surface preparation.
Features and benefits:
Hydrophilic paste- single-component, polymeric adhesive sealant
Coverage (per cartridge): 20 mm wide waterbar: 6.5–8.5 linear metres; 30 mm wide waterbar: 5.5 linear metres
D40/565 Proprietary waterstops
E40/320 Hydrophilic waterstops
Newton 306 LeakSeal (SX306)
Tack free time (hours at 23°C and 60% Relative Humidity (RH))
Tensile strength (MPa)
Up to 11 x initial size.
Up to 3.5 times initial size.
Installation temperature (°C)
5°C to 40°C.
Service temperature (°C)
-40°C to 100°C.