Newton Hydrotank Injection Hose Waterbar

Construction Joint Resin Injection Hose Waterbar – HydroTank 302

HydroTank 302 Injection Hose is a high-performance waterbar system designed for sealing construction joints in earth-retaining and water-retaining concrete structures. Once injected with polyurethane or acrylic injection resin, the system ensures permanent waterproofing by penetrating into the surrounding concrete, sealing cracks, capillaries, pores, and honeycombing.

Equipped with micro-ports evenly distributed along its circumference, the HydroTank 302 Injection Hose allows low-viscosity resin to deeply penetrate the construction joint when injected at 1-bar pressure or above. This enhances the water tightness of Type B waterproof structures, improving the quality of concrete placement while offering a long-lasting, effective solution for joint sealing.

Key Benefits:

✅ Resistant to permanent water pressure of 2 bar
✅ Compatible with polyurethane & acrylic resins (e.g., Newton 322-SP & Newton 323-SA)
✅ Not displaced or damaged during concrete compaction
✅ No kicker or rebate required, reducing labor costs
✅ Unaffected by weather exposure & site delays
✅ Guaranteed resin flow, even around sharp bends, due to its star-shaped interior geometry
✅ Faster installation compared to conventional waterbars
✅ Seals the entire joint, preventing water ingress to reinforcement steel
✅ Resistant to sewage, chlorine & sulphides
✅ Maintains integrity throughout the building’s lifespan, unaffected by wet/dry cycles
✅ Will not swell into voids & wash away, unlike 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

Product Specifications:

• Code: 302
  • Packaging: 120m coils
  • Colour: Light Blue
• Code: 302K60
  • Packaging: 60-metre injection hose kit
• Code: 302K120
  • Packaging: 120-metre injection hose kit

Technical Performance:

• Material: Formulated closed-cell plastic
• 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°C to +50°C
• Service Temperature: -10°C to +50°C
• Minimum Required Concrete Cover: 100mm
• Water Resistance (sealed with Newton 322-SP): 2 bar
• Maximum Installed Hose Length: 10–12m

💪 Achieve superior joint sealing and waterproofing with HydroTank 302 – Order now!

Downloads

•  Download HydroTank 302 Injection Hose Data Sheet

•  Download NBS Clause