HydroTank 302 Injection Hose

Deep Penetration, Permanent Seal: HydroTank 302 Injection Hose, when injected with resin, penetrates concrete to seal cracks, capillaries, and pores, ensuring a permanent, watertight construction joint.
Efficient Resin Distribution: Featuring micro-ports that open at 1-bar pressure, HydroTank 302 ensures even, deep resin distribution, enhancing the structural integrity and watertightness of concrete joints.
Versatile Compatibility: Compatible with both polyurethane and acrylic resins, HydroTank 302 Injection Hose boosts the water tightness of ‘Type B’ waterproof structures, improving overall concrete quality and joint sealing.

A high performance waterbar system installed within and used for sealing construction joints in earth-retaining and water-retaining concrete structures. When injected with injection resin, the material penetrates into the concrete surrounding the construction joint to permanently seal any cracks, capillaries, pores and honeycombing within the structure.

HydroTank 302 Injection Hose features micro-ports equally spaced over the entire circumference of the hose, and when injected with injection resin at 1-bar of pressure or above the microscopic ports open and the low-viscosity resin penetrates deeply into the concrete surrounding the construction joint.

The injection hose is compatible with both polyurethane and acrylic injection resins, and when installed and injected correctly HydroTank 302 Injection Hose improves the water tightness of the ‘Type B’ waterproof structure by sealing the joints and encouraging improvements in the quality of the concrete placement.

Key Benefits

Typical Applications

Suitable Substrates

Technical Data

Key Benefits

Resistant to permanent water pressure of 2 bar.
Can be used with both polyurethane and acrylic resins, such as Newton 322-SP and Newton 323-SA.
Hose is not displaced or damaged by the concrete compaction process.
No kicker or rebate required, reducing site labour costs.
The injection hose is unaffected by weather exposure and site works resulting from project delays.
Guaranteed continual flow of the injection material due to the star-shaped interior geometry, even if the hose follows sharp bends.
Quicker to install than conventional waterbars.
Seals the whole of the joint, not just the few millimetres around the joint and so prevents the water entering the joint and reaching the reinforcement steel.
Resistant to sewage, chlorine and sulphides.
Integrity is maintained throughout the building life and is not effected by continuous wet/dry cycles.
Can be used with or without a kicker.
Will not ‘free-swell’ into voids and be washed away as is the case with bentonite based waterbars.

Typical Applications

Concrete walls supported from a raft – with or without a kicker.
Within concrete walls.
Within concrete rafts or slabs.
Concrete slab to concrete or steel piled wall.
Concrete slab to brick/block wall.

Suitable Substrates

Reinforced concrete.
Steel piled walls (welded flange required).
Brick or concrete block walls.

Technical Data

Features	Result
Material	Formulated closed-cell plastic
Colour	Light blue
Profile	Round with 4 x semi-circular notches
External diameter	13.0mm
Internal diameter	6.0mm
Micro-port length	5.0mm
Micro-port spacing	15mm
Micro-port opening pressure	> 1 bar
Application temperature	-10 to +50°C
Service temperature	-10 to +50°C
Minimum required concrete cover	100mm
Water resistance when sealed with Newton 322-SP	2 bar
Maximum installed hose length	10-12m
Packaging – coils	120m