Polyester Polyurethane Elastomer refers to a type of elastomeric material produced by reacting polyester polyols with isocyanates typically MDI (methylene diphenyl diisocyanate) or TDI (toluene diisocyanate) along with chain extenders, catalysts, and other additives.
These elastomers provide an excellent balance of flexibility, durability, and chemical resistance, making them well-suited for a wide range of applications, including automotive components, industrial parts, protective coatings, and adhesives.
They are particularly valued for their high mechanical strength, abrasion resistance, and ability to maintain performance across a broad temperature range. Additionally, polyester polyurethane elastomers can be tailored to meet specific performance requirements depending on the intended application.
Storage Instructions for Polyester Polyurethane Elastomer:
Store the material in a cool, dry, and well-ventilated place to maintain its quality. Once opened, it should be used as soon as possible to avoid moisture absorption and potential degradation.
If the material cannot be used up in one go, replace the remaining contents with nitrogen and seal the container tightly to prevent contamination.
Under proper storage conditions, the product has a shelf life of 12 months from the date of production.
| Component characteristics | Type | B35161-B | B35161-A | B3516-C | |||
| NCO content/% | 16.1 | - | - | ||||
| Operating temperature/℃ | 60 | 65 | 45 | ||||
| Viscosity/cps | 480 | 1300 | 30 | ||||
| Operating process | Prepolymer | B35161-B | |||||
| Hardness/A | 70 | 75 | 80 | 85 | 93 | 55D | |
| B35161-B (ratio, by weight ) | 100 | 100 | 100 | 100 | 100 | 100 | |
| B35161-A(ratio, by weight ) | 150 | 130 | 110 | 80 | 55 | 30 | |
| B3516-C(ratio, by weight ) | 10.2 | 11 | 12.0 | 13.3 | 14.5 | 15.6 | |
| B3515-D/(A+B+C)(%) | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.12 | |
| Elastomer physical properties | |||||||
| Hardness/Shore A | 70 | 75 | 80 | 85 | 93 | 55D | |
| Tensile strength/MPa | 33 | 35 | 41.5 | 43.6 | 48 | 47 | |
| 100% elongation stress/MPa | 4.4 | 4.9 | 5.3 | 5.8 | 7.4 | 12.6 | |
| 300% elongation stress/MPa | 9.7 | 10.4 | 11.8 | 12.5 | 15.6 | 21.4 | |
| Elongation at break/ % | 600 | 570 | 556 | 550 | 520 | 520 | |
| Tear strength (right angle) / (KN/m) | 87 | 90 | 94 | 99 | 120 | 143 | |
| Tear strength (trouser type) / (KN/m) | 24 | 27 | 30 | 31.2 | 45 | 48 | |
| Rebound(30℃)/% | 50 | 49 | 49 | 48 | 45 | 40 | |
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