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Shore A95 Roller TDI 80 Polyurethane Prepolymer

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Shore A95 Roller TDI 80 Polyurethane Prepolymer

Brand Name : EXCEEDCHEM

Model Number : TDI-80/Polyester Polyurethane Prepolymer Shore A95

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% : 4.90-5.10

MOCA% : 14.5

Hardness : Shore A95

Appearance : solid

Base : TDI-80 based/ polyester

Packing : 200kg/drum

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TDI-80/Polyester Polyurethane Prepolymer Shore A95

1. Description

This is a TDI-80 based Polyester polyurethane prepolymer.

2. Characteristics

  • High oil resistance
  • Abrasive resistance
  • Good michanical performance

3. Applications

  • Sieve plate
  • Machine parts
  • Sealing ring
  • Roller

4. Typical properties

Type Appearance Viscosity(mPa.s/85℃) NCO% Packing(kg/drum)
Specification Solid 900-1000 4.90-5.10 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 14.5 2-3 80/120 10

* Ethacure 300 (DMTDA) can replace MOCA in the curing process.

7. Finished products properties

Item Hardness(Shore A) Tensile strength(MPa) Tear strength(KN/m) Rebounding(%)
Physical properties 95 48-50 100-105 41

8. Shelf life and storage

Most of prepolymers have a shelf life of 6-12 months when stored unopened in their original containers at temperature less than 30℃.

The isocyanate content of all prepolymers will decrease by reaction with moisture or heat. Partial drums should be blanketed with dry nitrogen.

Shore A95 Roller TDI 80 Polyurethane Prepolymer


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