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   IndiaRubberDirectory.com > Rubber Engineering > Standard Rubber Formulations

Standard Rubber Formulations - HIGH GRADE INSULATION

HIGH GRADE INSULATION

 

 

  A B
Natural Rubber RMAIX 100.0 100.0
Zinc Oxide       10.0 50.0
Activated CaCO3 45.0 25.0
Paraffin wax   2.0 2.0
China clay (calcined)  40.0 20.0
Stearic Acid 0.5 0.5
Sulphur 1.5 1.5
Accicure F 1.5 1.5
Accinox B       1.5 1.5
Sp. Gr. 1.35 1.43
Rubber Content (%)  50.0 50.0

Press cure : 15 minutes at 141°C 

Expected Physicals 

Tensile strength (Kg/cm²)                                                   188                              205

Elongation at break (%)                                                       530                              560

Hardness (IRHD)                                                                       60                                  58

Tension set (%)                                                                          9                                  6

Electrical resistivity (ohm, cm)                                2.18 x 1015                           2.35 x 1015


 

 

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