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Brand Name : EXCEEDCHEM
Model Number : MDI based polyurethane preploymer Shore A85
Certification : ISO9001:2008
Place of Origin : China
MOQ : 1mt
Price : FOB Qingdao usd3.0/kg
Payment Terms : L/C, T/T
Supply Ability : 3000mt/month
Delivery Time : 5-8 work days
Packaging Details : 20kg/drum; 200kg/drum
MOCA : 12.8-13.3%
Hardness : Shore 85A
Packing : 20kg/drum; 200kg/drum
Appearance : Liquid
Base : MDI based
NCO : 4.5-4.7%
MDI/Polyether Polyurethane Prepolymer Shore A85
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 | 280-300 | 4.50-4.70 | 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 | 12.8-13.3 | 3.5-4.0 | 80/120 | 10 |
7. Finished products properties
Item | Hardness(Shore A) | Tensile strength(MPa) | Tear strength(KN/m) | Rebounding(%) |
Physical properties | 85 | 20-22 | 50-60 | 27 |
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Bonding Chemical Shore A85 MDI Based Polyurethane Images |