AquaBond 40 NF is a next‑generation inorganic modified, organic–inorganic hybrid structural PU injection grout. Designed for wet and water‑bearing structures, it remains non‑foaming on contact with water and cures into a dense 40 MPa grout body. This makes it ideal for projects where waterproofing and structural reinforcement must be achieved at the same time, such as basements, tunnels, shafts and water tanks.
Product Introduction
AquaBond 40 NF is an inorganic modified, organic–inorganic hybrid non‑foaming structural polyurethane injection grout developed by ZRETE for demanding underground and water‑bearing environments.
Unlike conventional PU injection resins that focus only on leak sealing, AquaBond 40 NF uses an organic–inorganic hybrid modified polyurethane matrix. The hybrid network combines the toughness and adhesion of PU with the stiffness and durability of an inorganic phase, providing concrete‑like compressive strength of around 40 MPa and excellent long‑term stability in wet conditions.
Even in the presence of water, AquaBond 40 NF does not foam. The resin flows as a low‑viscosity grout, penetrates cracks and voids, and then cures to form a dense, compact, non‑foamed injection body. This ensures reliable sealing of leaking cracks and joints while also restoring stiffness and load‑bearing capacity to the surrounding concrete or rock.
AquaBond 40 NF is specially designed for:
Concrete crack injection and repair in basements, foundations and retaining walls.
Waterproofing and reinforcement of tunnels, shafts, galleries and underground caverns.
Stabilisation and consolidation of water‑bearing rock and ground in civil and mining projects.
Water‑retaining structures, such as water tanks, reservoirs and wastewater facilities.
With its hybrid technology, non‑foaming behaviour and underwater curing capability, AquaBond 40 NF is an ideal choice for engineers and contractors looking for a single injection system that provides both leak sealing and structural reinforcement.
Product Parameters
Product name: AquaBond 40 NF Organic–Inorganic Hybrid Non‑Foaming Structural PU Injection Grout.
Chemical base: Inorganic modified, organic–inorganic hybrid polyurethane injection resin.
Type: Two‑component structural PU injection grout.
Appearance (mixed): Low‑viscosity liquid resin.
Colour (cured): Dense, compact solid grout (colour to be specified).
Non‑foaming behaviour: Non‑foaming in contact with water (expansion factor ≈ 1.0).
Compressive strength: Approx. 40 MPa (under standard curing conditions).
Adhesion: Excellent adhesion to concrete, mortar and rock substrates.
Curing in water: Can be injected and cured directly in water‑filled cracks and voids.
Dimensional stability: Low shrinkage, good long‑term volume stability.
Recommended substrate conditions: Damp, wet or water‑bearing concrete and rock.
Typical applications: Basements, tunnels, shafts, water tanks, underground structures.
Product Usage
AquaBond 40 NF is designed for structural crack injection and waterproofing in:
Basements and foundations – leaking or damp concrete walls, slabs and retaining structures.
Tunnels and underground caverns – crack and joint injection, local rock and lining stabilisation.
Shafts, galleries and utility corridors – sealing and reinforcing water‑bearing joints and interfaces.
Water tanks, reservoirs and wastewater structures – repairing leaking cracks and construction joints in water‑retaining concrete.
Mining and civil engineering works – stabilising water‑bearing rock fissures and local voids.
How to Use (Basic Injection Procedure)
Inspection & design
Identify crack locations, leakage paths and injection zones. Define packer spacing and injection sequence according to the structure thickness and crack pattern.
Drilling & packer installation
Drill holes along the crack line and install suitable mechanical or adhesive packers. Ensure tight contact between packer and substrate.
Injection
Use a suitable 1‑ or 2‑component injection pump. Inject AquaBond 40 NF from the lowest point upwards (for vertical cracks) or from one end to the other (for horizontal cracks). Increase pressure gradually until grout appears at the next packer or refusal is reached.
Curing
Allow AquaBond 40 NF to react and cure. The grout will cure directly in water, forming a dense, non‑foamed injection body with high compressive strength.
Finishing
After curing, packers can be removed if required and the drill holes can be patched with suitable repair mortar.
Thanks to its inorganic modified, organic–inorganic hybrid PU resin, AquaBond 40 NF not only stops water but also reinforces and stabilises the treated zone, making it a reliable solution for long‑term crack repair and waterproofing in demanding underground and water‑bearing environments.
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Our products have undergone rigorous testing at our national testing laboratory (CABR testing center co., ltd). Renowned Fortune Global 500 firms such as China Railway Group Limited, China Communications Construction Company Limited, and Sinohydro are among our esteemed clients.
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