Polyurethane Structural Adhesive

Product Overview

Polyurethane Structural Adhesive is a high-toughness, high-strength two-part or single-component moisture-curing polyurethane bonding material. It forms a flexible, impact-resistant elastic layer after full curing, solving the brittleness defect of epoxy structural adhesives.

This series features excellent shear strength, peel strength, anti-drop, shock absorption, waterproof, weather-proof and anti-corrosion performance. It achieves reliable bonding between dissimilar substrates: metal, aluminum alloy, steel, ABS, PC, nylon, FRP, SMC composite, plastic, rubber and ceramic.

Our PU structural adhesives are widely adopted in new energy vehicles, automotive lightweight assembly, auto interior parts, rail transit composite components, electronic equipment shell fixing and machinery hardware assembly. All formulations comply with RoHS & REACH standards, free of harmful volatile solvents, low odor for mass automatic dispensing production lines.

Two Main Types

1. One-component Moisture Curing Polyurethane Structural Adhesive No mixing required; cure by absorbing ambient moisture. Easy dispensing via manual guns or automatic dispensing equipment. Ideal for continuous production of automotive and electronic parts.

2. Two-component Room-Temperature Curing Polyurethane Structural Adhesive Fixed A:B mixing ratio, controllable working time, fast strength build-up. Ultra-high tensile and shear strength for heavy-load structural assembly of rail transit, new energy battery modules and composite materials.

Core Product Advantages (Long-tail Keywords Embedded)

1. High bonding strength with super toughness, no brittle cracking under vibration or impact

2. Excellent shock absorption and anti-drop performance for new energy vehicle structural assembly

3. Wide service temperature range: -60°C ~ 120°C, customized high-temperature resistant grades available

4. Outstanding waterproof, moisture-proof, insulation and anti-aging outdoor performance

5. Great adhesion to hard-to-bond substrates including SMC, FRP, coated metal and engineering plastics

6. Low shrinkage after curing, no deformation for precision electronic and automotive assemblies

7. Adjustable open time and curing speed to match different automated production processes

8. Flexible cured layer releases internal stress, avoids cracking caused by thermal expansion difference of dissimilar materials

9. Flame retardant formula optional, meets UL94-V0 standard for power and electronic equipment

Wide Application Fields

New Energy & Automotive Industry

· Polyurethane structural adhesive for new energy vehicle battery shell bonding and sealing

· PU structural adhesive for automotive lightweight SMC, FRP and stainless steel composite assembly

· Flexible PU structural glue for car interior plastic, metal and magnet bonding

· Shock-resistant PU adhesive for automotive electronic control module housing fixing

Rail Transit Industry

· High-strength two-component polyurethane structural adhesive for locomotive composite panel assembly

· Anti-vibration PU structural compound for rail transit interior parts and equipment frame bonding

Electronic & Electrical Industry

· PU structural adhesive for large equipment metal shell sealing and fixing

· Low-stress PU structural glue for electronic power module and sensor assembly

Machinery & Composite Materials

· Structural bonding of fiberglass, carbon fiber, aluminum alloy and steel hardware

· Gap filling and structural reinforcement for engineering machinery parts