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          Guilin Coninst -- With the longest history in the field of electrical contact materials in China         
          Guilin Coninst -- The leader of the electrical contact technology of China  
                 
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          Heat-resistant modified unsaturated polyester PT-310

          Characteristics
                Heat-resistant modified unsaturated polyester moulding compounds possess high resistance against electrical arc and tracking, superior mechanical strength, excellent long-term dimensional stability even at elevated temperature and good flame resistance to UL94 V-0.  It has over 12 months of storage time at room temperature.  PT-310 moulding compounds have obtained UL certificate No. E208587.
          Applications
                Mainly used to the insulating parts for temperature controllers for household appliances, main switches, magnet coil frames, connecting terminals, low-voltage devices and flameproof devices, etc.

           

           

          Properties:

          Properties

          Heat-resistant modified polyester PT-310

          Density

          1.9~2.1 g/cm3

          Water absorption   (1d / 23℃)

          ≤ 20 mg

          Moulding shrinkage

          0.4~0.7 %

          Charpy impact strength

          ≥ 7.0 kJ/m2

          Charpy notched impact strength

          ≥ 3.0 kJ/m2

          Flexural strength

          ≥ 80.0 MPa

          Surface resistivity

          ≥ 1.0 × 1013 Ω

          Volume resistivity

          ≥ 1.0 × 1011 Ω·m

          Electric strength

          ≥ 12.0 MV/m

          Comparison tracking index

          ≥ 600 V

          Arc resistance

          ≥ 180 s

          Thermal deflection temperature with load

          ≥ 210 ℃

          Flammability (sample thickness 1.6 mm)

          FV-0 (UL94)

          Color

          Various colors can be supplied according to the requirement of customers.

          Product form

          dry granular pellets



          Processing Conditions for Reference

          Compounds for Injection

          Mould temperature()

          Material container temperature ()

          Injection pressure
          (MPa)

          Curing time
          (s/mm)

          Moving mould

          Fixed mould

          Nozzle zone

          Feed zone

          Heat-resistant modified polyester (PT-310)

          165~175

          165~175

          80~90

          50~70

          60~100

          25~40

           

             
             
             
           
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