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

    Buy cheap Shore A78 TDI 80 Polyurethane Prepolymer Sealing O-Rings Raw Material from wholesalers
     
    Buy cheap Shore A78 TDI 80 Polyurethane Prepolymer Sealing O-Rings Raw Material from wholesalers
    • Buy cheap Shore A78 TDI 80 Polyurethane Prepolymer Sealing O-Rings Raw Material from wholesalers

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

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    Brand Name : EXCEEDCHEM
    Model Number : TDI-80/Polyether Polyurethane Prepolymer Shore A78-80
    Certification : ISO9001:2008
    Price : FOB Qingdao usd3.0/kg
    Payment Terms : L/C, T/T
    Supply Ability : 3000mt/month
    Delivery Time : 5-8 work days
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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


    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

    TypeAppearanceViscosity(mPa.s/85℃)NCO%Packing(kg/drum)
    Liquid250-2803.5-3.720/200

    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


    ItemMOCA (%)Gel time(min)Mixing temperature(℃)Post vulcanization(h)
    Specification10-10.35-685/12010

    7. Finished products properties


    ItemHardness(Shore A)Tensile strength(MPa)Tear strength(KN/m)Rebounding(%)
    Physical properties78-809-1040-4548

    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.
    Quality Shore A78 TDI 80 Polyurethane Prepolymer Sealing O-Rings Raw Material for sale
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