HB Fuller Körapur 125 Polyurethane adhesive sealant for transport, automotive, and construction applications
- Weather and aging resistant
- Multi-surface adhesion without primer
- Sands and paints easily
- Free from isocyanates and solvents
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Körapur 125 – High-performance polyurethane adhesive sealant
Extreme durability for industrial and automotive bonding
The HB Fuller Körapur 125 is a polyurethane adhesive sealant engineered for industrial and automotive assemblies.
With moisture-curing technology, it provides exceptional resistance to extreme weather conditions, vibrations, and temperature fluctuations. Its high flexibility and strong adhesion make it the ideal choice for long-lasting, high-performance bonding and sealing applications.
Why choose Körapur 125?
Extreme weather resistance – Withstands moisture, UV exposure, and temperatures from -60°C to 90°C.
Multi-surface adhesion – Bonds effectively to aluminum, steel, glass, wood, and technical plastics.
High flexibility and elasticity – Absorbs mechanical and thermal stresses without cracking.
Fast curing – Forms skin in 45 minutes and cures at 3 mm per day.
Versatile applications – Suitable for transportation, construction, and industrial uses.
Applications of Körapur 125
The Körapur 125 is designed for demanding applications requiring strong adhesion and high mechanical resistance:
🚛 Transportation industry
Structural bonding for metal frames and panels.
Assembly of truck, trailer, and bus components.
Fixing and sealing parts in railway applications.
🚗 Automotive construction
Windshield bonding and sealing.
Attachment of body panels and structural elements.
Sealing of joints and metal assemblies.
🏗️ Building and construction
Fixation of composite claddings and panels.
Bonding of wood, glass, and metal elements.
Sealing and adhesive applications for prefabricated structures.
🏭 Industrial applications
Bonding technical plastics and composite materials (CFRP, GFRP).
Assembly of metallic components requiring long-term durability.
Sealing and bonding in manufacturing processes.
Usage recommendations
For optimal adhesion, surfaces must be clean, dry, and grease-free. Depending on the material, an adhesion promoter is recommended.
Application methods :
Cartridge or foil pack applicator gun
Industrial dosing systems
💡 Tip: The Körapur 125 can be painted once the skin has formed, but it is not suitable for bonding glass exposed to continuous UV radiation.
Technical data
| Property | Value |
|---|---|
| Chemical base | Polyurethane |
| Curing mechanism | Moisture-curing |
| Density | 1.2 g/cm³ |
| Shore-A hardness | 48 |
| Tensile strength | 2.0 MPa |
| Elongation at break | 500% |
| Operating temperature | -60°C to 90°C |
| Short-term max temperature (1h) | 120°C |
| Curing depth | 3 mm per day |
| Skin formation time | 45 minutes |
| Tear resistance | 9 N/mm |
Adezif in figures
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