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   IndiaRubberDirectory.com > Rubber Engineering > Standard Rubber Formulations

Standard Rubber Formulations - V-BELT (WRAP/MOULD CURED)

V-BELT (WRAP/MOULD CURED)

  BASE CUSHION

FRICTION

Natural Rubber, RMA4 45 50 50
Accimel 0.10 0.10 0.10
SBR-1502       40 50 50
WTR-100 30 -- --
Zinc Oxide 3 4 5
Stearic acid 1 1 1
SRF (N 770) Black      -- -- 1.5
GPF (N 660) Black 25 60 --
HAF (N 330) Black 25 -- --
China clay        50 -- --
Activated CaCO3 50 45 40
Elasto 710 Oil 10 15 10
Mineral Rubber-MRX -- 3 5
Wood Rosin 2.5 3 2.5
Petroleum Resin -- 5 --
Accicure MBTS -- 1.2 1.5
Accicure HBS 1.5 -- --
Accicure TMT -- 0.2 0.2

Press cure: 20 minutes at 150C 

Expected Physicals: 

Tensile Strength, (Kg/cm)                            210

Modulus at 300% el. (Kg/cm)                      60

Elongation at break, (%)                               620

Hardness (IRHD)                                          62

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