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Reactive PU adhesives are versatile bonding agents made from polyurethane that cure through a chemical reaction with moisture in the air. These adhesives offer strong adhesion to a variety of substrates, including wood, metal, plastic, and concrete, making them suitable for both industrial and construction applications. They are known for their durability, flexibility, and resistance to environmental factors such as heat, moisture, and chemicals.
| Curing mechanism | Moisture-cured |
| Bond strength | High initial and final bond strength |
| Temperature resistance | Typically -40°C to 100°C |
| Viscosity | Varies from low to high viscosity |
| Shelf life | 6 to 12 months when stored properly |
When selecting a reactive PU adhesive, consider the specific materials you will be bonding and the environmental conditions they will face. Key specifications to request include the adhesive's curing time, bond strength, and temperature resistance. Additionally, inquire about any necessary certifications for your industry, such as VOC compliance or safety data sheets. Quantities may vary based on project size, so it's advisable to estimate your needs accurately.
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They can bond wood, metal, plastic, and concrete.
Curing time can vary but typically ranges from a few hours to 24 hours.
Yes, they provide excellent water resistance once fully cured.
Yes, they are suitable for outdoor use due to their durability.
Use in a well-ventilated area and wear appropriate personal protective equipment.
Most are ready to use, but some may require mixing components.