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Product Details:
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| NCO%: | 2.80-2.95 | MOCA%: | 8-8.3 |
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| Base: | TDI-80/Polyether | Hardness: | Shore A78-80 |
| Color: | Colorless Liquid | Application: | Roller, Plate And Bar, Sealing Ring |
| High Light: | 584 84 9 TDI 80 Polyurethane,Shore A78 TDI 80,584 84 9 TDI Polyurethane Prepolymer |
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Shore A78 TDI 80 Polyurethane Prepolymer Sealing O-Rings Raw Material
1. Description
This is a TDI-80 based polyether polyurethane prepolymer.
2. Characteristics
3. Applications
4. Typical properties
| Type | Appearance | Viscosity(mPa.s/85℃) | NCO% | Packing(kg/drum) |
| Liquid | 250-280 | 3.5-3.7 | 20/200 |
5. Operating Procedure
First, the prepolymer should be preheated in 80-85℃. Second, after vacumming, the prepolymer is to be mixed with melting MOCA evenly. Third, with degassing, casting into mould, and vulcanization,and then demould. Lastly, the finished product should be post vulcanized.
6. Reaction parameters
| Item | MOCA (%) | Gel time(min) | Mixing temperature(℃) | Post vulcanization(h) |
| Specification | 10-10.3 | 5-6 | 85/120 | 10 |
7. Finished products properties
| Item | Hardness(Shore A) | Tensile strength(MPa) | Tear strength(KN/m) | Rebounding(%) |
| Physical properties | 78-80 | 9-10 | 40-45 | 48 |
Contact Person: Mr. Louis.liu
Tel: 86-15275281902
Fax: 86-532-82693196
