Categories
| Price: | US $ 1.99-7/Piece |
|---|---|
| Trade Terms: | FOB,CFR,CIF |
| Min Order: | 100/Piece |
| Pay Type: | L/C,T/T,Paypal,Money Gram,Western Union |
DESCRIPTION
Polyurethane (PUR and PU) is a polymer composed of organic units joined by carbamate (urethane) links. While most polyurethanes are thermosetting polymers that do not melt when heated, thermoplastic polyurethanes are also available.
Polyurethane polymers are traditionally and most commonly formed by reacting a di- or polyisocyanate with a polyol. Both the isocyanates and polyols used to make polyurethanes contain on average two or more functional groups per molecule.
Polyurethanes are used in the manufacture of nonflexible, high-resilience foam seating; rigid foam insulation panels; microcellular foam seals and gaskets; durable elastomeric wheels and tires (such as roller coaster, escalator and skateboard wheels); automotive suspension bushings; electrical potting compounds; high performance adhesives; surface coatings and surface sealants; synthetic fibers (e.g., Spandex); carpet underlay; hard-plastic parts (e.g., for electronic instruments); hoses.
TECHNICAL MANUAL
| Surtek 3351 Technical Data | ||
| 1 | Chemical base | Polyurethane |
| 2 | Color | Black |
| 3 | Density (DIN 53479) | 1.35±0.05 kg/l |
| 4 | Non-sag properties | Good |
| 5 | Cure mechanism | Moisture-curing |
| 6 | Tack-free time | 20~60 min |
| 7 | Rate of cure | ≥3 mm/24hr |
| 8 | Shore A hardness (DIN 53505) | 60±5 |
| 9 | Shear strength (without primer) | ≥1.5 N/mm2 |
| 10 | Tensile strength (DIN 53504) | ≥4 N/mm2 |
| 11 | Elongation at break (DIN 53504) | ≥400% |
| 12 | Tear strength (DIN 53515) | ≥10 N/mm |
| 13 | Glass transition temperature (DIN 53445) | -45°C approx. |
| 14 | Service temperature (continuous) | -40°C to +90°C |
| Short - term (up to 48 hrs) | 130°C | |
| NOTE: at 23°C and 50% relative humidity | ||
| Markets: | North America,South America,Eastern Europe,Southeast Asia,Africa,Oceania,Mid East,Eastern Asia,Western Europe |
|---|---|
| Bonding Function: | Instant Adhesive |
| Morphology: | Solid-State |
| Application: | Automobile |
| Material: | Polyurethane |
| Classification: | Room Curing |
| Main Agent Composition: | Polyurethane Elastomer |
| Characteristic: | Weatherability |
| Color: | Black, White, Grey |
