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Shore A78 TDI 80 Polyurethane Prepolymer Sealing O-Rings Raw Material
Shore A78 TDI 80 Polyurethane Prepolymer Sealing O-Rings Raw Material
Specifications
Brand Name :
EXCEEDCHEM
Model Number :
TDI-80/Polyether Polyurethane Prepolymer Shore A78-80
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
NCO% :
2.80-2.95
MOCA% :
8-8.3
Base :
TDI-80/Polyether
Hardness :
Shore A78-80
Color :
colorless liquid
Application :
Roller, Plate and bar, Sealing ring
Description

Shore A78 TDI 80 Polyurethane Prepolymer Sealing O-Rings Raw Material

1. Description

This is a TDI-80 based polyether polyurethane prepolymer.

2. Characteristics

  • Water resistance
  • Low temperature resistance
  • Mold resistance

3. Applications

  • Roller
  • Plate and bar
  • Sealing ring

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

Cast polyurethane elastomers provide advantages such as elasticity, a long service life and excellent wear resistance. Our polyurethane hot cast elastomers based on toluene diisocyanate (TDI) can be formulated with a wide range of mechanical properties including different hardness levels thanks to polyester- or polyether-based prepolymers.
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Shore A78 TDI 80 Polyurethane Prepolymer Sealing O-Rings Raw Material

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Product Detail
Brand Name :
EXCEEDCHEM
Model Number :
TDI-80/Polyether Polyurethane Prepolymer Shore A78-80
Certification :
ISO9001:2008
Place of Origin :
China
MOQ :
1mt
Price :
FOB Qingdao usd3.0/kg
Contact Supplier
Shore A78 TDI 80 Polyurethane Prepolymer Sealing O-Rings Raw Material

Qingdao Exceed Fine Chemicals Co.,Ltd

Verified Supplier
6 Years
shandong, qingdao
Since 2013
Business Type :
Manufacturer, Distributor/Wholesaler, Exporter, Trading Company
Main Products :
TDI MDI Polyurethane, TDI Based Polyurethane, MDI Based Polyurethane
Total Annual :
10000000-20000000
Employee Number :
50~100
Certification Level :
Verified Supplier
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