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Product Details:
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Hardness: | Shore A80 | NCO%: | 5.00-4.20 |
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MOCA (%): | 11.5 | Base: | MDI Based Prepolymer |
Appearance: | Liquid | Packing: | 20kg/drum; 200kg/drum |
Highlight: | Odorless MDI Polyether Polyurethane,Shore A80 MDI Polyurethane,A80 MDI Polyether Polyurethane |
MDI/Polyether Polyurethane Prepolymer Shore A80
1. Description
This is a MDI based polyether polyurethane prepolymer.
2. Characteristics
3. Applications
4. Typical properties
Type | Appearance | Viscosity(mPa.s/85℃) | NCO% | Packing(kg/drum) |
Liquid | 210-230 | 5.00-4.20 | 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 | 11.5 | 4 | 80/120 | 10 |
7. Finished products properties
Item | Hardness(Shore A) | Tensile strength(MPa) | Tear strength(KN/m) | Rebounding(%) |
Physical properties | 80 | 16-18 | 40-45 | 32 |
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