PU adhesive: performance and flexibility for industry

What is PU adhesive?

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La polyurethane gluealso known as PU glueis a single- or two-component adhesive that is renowned for its mechanical strength, flexibility and excellent durability. It is used for durable assemblies subjected to structural, thermal or chemical stress. 

It adapts to a wide range of substrates: wood, metal, concrete, plastic and composites. It is also used in waterproofingIt can also be used as a joint sealant or for flexible bonds subject to vibration or expansion. 

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Technical characteristics of polyurethane adhesive for industrial use

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La polyurethane adhesive for industrial use offers an excellent combination of resistance, flexibility and multi-substrate adhesion. 

Key features : 

  • Excellent adhesion to porous and non-porous surfaces 
  • Good elasticity after curing: absorbs shocks 
  • Highly resistant to moisture, water and solvents 
  • Mechanical strength up to 10 MPa depending on formulation 
  • Operating temperatures up to 120 °C 

Available in mono or two-component polyurethane adhesive for controlled setting times or extreme stresses. 

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La PU glue is used for demanding bonding in complex conditions: 

  • Progressive grip for easy repositioning 
  • Curing by reaction with moisture or by mixing the components 
  • Excellent moisture and UV resistance for outdoor use 
  • Suitable for bonding vertical or irregular surfaces 
  • Compatible with automation (gun, robot, static mixer) 

Its versatility makes it an essential solution for construction and public works, industry, transport and technical fittings. 

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La polyurethane wood glue is widely used for assembling panels, parquet flooring, skirting boards and exterior joinery. It is resistant to weather conditions and guarantees good stability over time. 

For the plasticSome formulations offer excellent resistance on PVC, ABS, polyester or polycarbonate, provided they have been properly cleaned beforehand. 

Finally, on the metalPU adhesives provide solid anchorage while tolerating thermal expansion, making them ideal for metal/plastic or metal/wood joints. 

La polyurethane sealing adhesive is used as a sealant for bonding, grouting and sealing. It is perfectly suited to applications in damp or submerged environments (electrical boxes, outdoor structures, bodywork, etc.). 

Some formulations also offer a heat resistance up to 120°C (or even higher for industrial bi-components), which means they can be used in severe thermal environments such as engines, electrical equipment or exposed structures. 

The polyurethane adhesives are used in a variety of sectors where flexibility and mechanical strength are essential. 

Public works & construction 

  • Gluing insulating panels, facings or lightweight partitions 
  • Fixing skirting boards, tiles or finishing elements 
  • For use as a sealant for exterior waterproofing 

Automotive & transport 

  • Fixing plastic or composite parts to metal structures 
  • Assembly of interior components subject to vibration 
  • Watertight bonding in engine or battery compartments 

Joinery and fittings 

  • Gluing wood to wood or wood to metal in structures 
  • Laying parquet flooring, skirting boards and decorative elements in damp conditions 
  • Flexible sealing and bonding for expansion zones 

Industry & maintenance 

  • Bonding components subjected to chemical or thermal stresses 
  • Repair or reinforcement of composite or plastic parts 
  • Waterproofing and fixing on complex or irregular surfaces 

→ Benefit from selection and integration support 

ADDEV Materials helps you identify the polyurethane glue best suited to your industrial constraints. 

Our strengths: 

Single or two-component references available from stock 

Selection from market leaders (3M, Panacol, Bostik, etc.) 

Technical support and tests on your media 

Formats adapted to your production lines: cartridge, pouch, canister 

Fast delivery, technical data sheets, REACH and ROHS compliance 

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📞 Our technical engineers can help you to choose polyurethane glue adapted to your environment, production rates and standards. Receive a sample within 48 hours for your tests. 

Our strategic suppliers of PU adhesives

FAQ - PU adhesive

It is a flexible adhesive that reacts to moisture or a hardener, ensuring strong adhesion to a wide range of materials.

PU adhesive is more resistant mechanically and thermally, but MS adhesive is better suited to solvent-free environments.

Yes, for demanding industrial applications: controlled setting time, increased resistance to heat and chemicals.

Yes, up to 120°C on average, or even higher for certain industrial formulations two-component.

Yes, on certain plastics (PVC, ABS, PC), provided the surfaces are properly prepared.

Yes, it can be used as a sealant as well as a bonding agent, particularly for outdoor or damp applications.