Qingdao Exceed Fine Chemicals Co.,Ltd
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Double-component Cold Cast Polyurethane System for Tyre
1. Description
This is a double-component polyurethane system material. Part A is mixture of Polyether Polyol. Part B is MDI based prepolymer.
2. Characteristics
3. Applications
4. Physical properties
| Item | Appearance | Viscosity(mPa.s/25℃) | Packing(kg/drum) |
| 1 | liquid | 800-900 | 20/200 |
| 2 | liquid | 1000-1100 | 20/200 |
5. Operating procedure
Mix Part A and Part B evenly according to the mixing ratio. Pour part A and part B respectively to machine drum and then do the vacuuming. Cast mixture into mould to produce the fisnished product.
6. Reaction parameters
| Item | Mixing ratio | Gel time(min) | Mixing temperature(℃) | Post vulcanization(h) |
| Specification | 100/100 | 60 | 20-40 | 1-3days at room temperature |
7. Finished product properites
| Item | Harndess(Shore A) | Tensile strength(MPa) | Tear strength(KN/m) | Rebounding(%) |
| Specification | 30 | 7 | 15 | 65 |