PU Binder
Since its invention, polyurethane has become one of the most versatile and widely used compounds, known for its flexibility, strong chemical composition, and ease of application. It plays a key role in the coating and printing industries, among others. Topfloor Sports Infra is a leading polyurethane binder manufacturer in Qatar, offering high-performance, one-component, moisture-curing, unpigmented PU binder—DESMOTOP-RR 2009 and DESMOTOP-RR 2008. These binders are ideal for bonding a wide range of substrates, including timber, polystyrene foam, plastic, urethane foam, reclaimed rubber, gravel, cloth, and metal surfaces. The curing rate of PU binders depends on factors such as substrate type, ambient temperature, and relative humidity. Applying a hot press can significantly accelerate the curing process.
| Property | Unit | DESMOTOP-RR 2009 | DESMOTOP-RR 2008 |
| Appearance | Yellowish liquid | Brownish liquid | |
| NCO content | % | 10 ± 0.3 | 11 ± 0.5 |
| Solid content | % | > 99 | 100 |
| Density at 25°C | % | 10 ± 0.3 | 11 ± 0.5 |
| NCO content | g/cm3 | 1.08 ± 0.05 | 1.09 ± 0.03 |
| Viscosity at 25°C | cps | 2200 ± 500 | 2400 ± 500 |
| Flash point | oC | > 200 | > 200 |
| Tack free time at 25°C/50% rel. hum. | hr | 4-6 | 4-6 |
| Download TDS | Download TDS |
- Simple to transport and put away
- Quite simple to handle
- Strongest possible connection
- Immaculate transparency
- Single Component
- No solvent is needed
- Very thin film
- Increased Durability
- Floors for Kids’ Play Areas
- Sports Fields
- Pavers and garden design
- Rubber goods through molding
- DESMOTOP-RR 2009: 200 kg Drum/ 25 Kg Drum
- DESMOTOP-RR 2008: 200 Kg Drum / 25 Kg Drum
- DESMOTOP-RR 2009: Rubber Tiles, Plastic, Crumb Rubber, Polyurethene Reboand
Foam Binder - DESMOTOP-RR 2008: EPDM Rubber Granules, SBR Granules.
PU Binder – FAQs
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What is a PU Rubber Binder Made Of?
A PU (polyurethane) rubber binder is an adhesive made from polyurethane resins. It is commonly used to bond rubber particles in products like rubber mats, athletic tracks, and playground flooring.
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What Are the Benefits of Using PU Binder in Rubber Products?
PU binders significantly enhance the durability, strength, and flexibility of rubber products. They help rubber particles bond firmly, resulting in a tough and long-lasting surface. This improves the overall performance and life span of the finished product.
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How Do PU Binders Improve Rubber Products?
Compared to other types of adhesives, PU binders offer superior bonding strength, elasticity, weather resistance, and long-term durability. Their adaptability ensures that rubber products remain stable and resilient under various conditions.
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Can PU Binders Be Used Outdoors?
Yes, PU binders are ideal for outdoor use. They offer excellent resistance to UV rays, weather changes, and temperature fluctuations, making them suitable for outdoor surfaces like sports tracks, playgrounds, and walking paths.
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How Are PU Binders Mixed with Rubber?
Typically, PU binders are blended with rubber granules to create a uniform mix. This mixture is then poured or spread onto a surface. Once the binder cures, it forms a strong, elastic rubberized surface.
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Can PU Binders Be Used in Rubber Recycling?
Absolutely. PU binders are essential in rubber recycling processes. They bind recycled rubber particles together to create new products, helping to reduce waste and support sustainable manufacturing practices.
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How Long Does It Take for a PU Binder to Cure?
Curing time varies depending on the product and environmental conditions. Generally, PU binders take several hours to a full day to fully cure and achieve the desired properties.
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Are PU Binders Compatible with EPDM Colored Granules?
Yes, PU binders work well with EPDM-colored granules. This combination is commonly used in applications like children’s play areas, jogging paths, and walking tracks.
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When Should You Use a PU Binder?
PU binders are used whenever a strong, wear-resistant bond is required for rubber surfaces. They are widely applied in sports surfaces, flooring, and other rubber-based applications due to their reliability and strength.
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