THREE COMPONENT AND WATER BASED POLYURETHANE ADHESIVE FOR CONCRETE
Three component and water based polyurethane adhesive for concrete is a high-performance bonding system designed for structural applications where strong adhesion, moisture resistance, and flexibility are required. Because the system contains a water-dispersed polyol component, a hardener, and mineral fillers or additives, it delivers excellent penetration, strong film formation, and durable bonding on concrete, cementitious substrates, stones, and construction materials.
This adhesive type is commonly preferred in construction repairs, floor coatings, civil engineering applications, precast bonding, and areas where low VOC and environmentally friendly systems are required.
Meaning & Description
This adhesive is based on a waterborne polyurethane dispersion combined with reactive crosslinkers. When the three components are mixed, a chemical curing reaction begins, forming a tough, abrasion-resistant and water-resistant polymer network.
It adheres very strongly to porous substrates and performs well even on slightly moist concrete surfaces.
Preparation & Making Procedure
To prepare three component and water based polyurethane adhesive for concrete, each component is first produced separately for stability. The polyol component contains waterborne polyurethane dispersion, wetting agents, anti-foam agents, thickeners, fillers and performance boosters.
The second component is typically an isocyanate-based crosslinker dispersed or emulsified for safe and controlled reaction.
The third component often includes reinforcing mineral fillers, rheology modifiers or cementitious extenders.
When mixing before application, all components are combined under slow agitation until a homogeneous mixture is obtained. The mixture is then spread on the concrete substrate and allowed to cure.
Properties
Strong adhesion to concrete and cement
Good flexibility and crack-bridging capability
Low odor and eco-friendly waterborne system
Excellent chemical resistance and abrasion resistance
Good penetration into porous surfaces
Suitable for interior and exterior construction uses
Applications & Usage
Repair bonding of concrete surfaces
Flooring systems
Structural patching and leveling
Bonding precast concrete parts
Anchoring and filling applications
General construction adhesive uses
Usage involves mixing the three components according to the manufacturer’s ratios, applying on a clean surface, and allowing sufficient curing time.
Advantages
Low VOC and safer application
High mechanical strength after curing
Moisture-resistant formulation
Long working time depending on formulation
Strong adhesion even on slightly damp substrates
Summary
Three component and water based polyurethane adhesive for concrete is a durable, environmentally friendly, high-strength adhesive system widely used in construction and industrial bonding. Its waterborne nature allows low odor and safer handling, while its reactive polyurethane chemistry provides superior adhesion and long-lasting performance.
