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General-purpose grade rubber

    The products of this series have excellent structural resistance properties, with high transparency and good yellowing resistance. Applicable to the products for platinum vulcanization, molding and extrusion of vulcanization molding.

     

          Typical Properties:

    Category

    Item

    General-purpose grade

    MY D9830

    MY D9840

    MY D9850

    MY D9860

    MY D9870

    MY D9880

    Appearance

    Transparent

    Vulcanization

    Hardness Shore A

    30±2

    40±2

    46±2

    60±2

    66±2

    80±2

    Tensile strength MPa

    8.0

    8.5

    10.0

    10.0

    10.0

    8.5

    Elongation at break %

    700

    600

    500

    480

    450

    300

    Breaking set %

    10

    10

    12

    12

    12

    10

    Tear strength B KN/m

    13

    14

    16

    17

    20

    16

    Post-curing

    Hardness Shore A

    33±2

    43±2

    48±2

    63±2

    68±2

    83±2

    Tensile strength MPa

    7.5

    8.0

    9.5

    9.5

    9.5

    8.0

    Elongation at break %

    650

    550

    450

    400

    350

    240

    Tear strength B KN/m

    10

    11

    13

    13

    13

    13

    Specific density 25°C g/cm³

    1.07±0.04

    1.13±0.04

    1.15±0.04

    1.18±0.04

    1.22±0.04

    1.25±0.04

    Compression set 180*22h %

    40

    35

    35

    35

    35

    35

    Resilience %

    50

    50

    50

    50

    46

    46

    Dielectric strength  kV/mm

    20

    21

    21

    21

    21

    21

    Volume resistivity Ω.cm

    1.0 x 10¹⁵

    1.0 x 10¹⁵

    1.0 x 10¹⁵

    1.0 x 10¹⁵

    1.0 x 10¹⁵

    1.0 x 10¹⁵

    Physical data in the above table is for reference only.

    Vulcanization condition: 175℃× 5Min. Post-curing condition: 200℃ x 4h

     Addition of curing agent: liquid 2,5-Dimethyl-2,5-di(tert-butylperoxy)hexane: 0.65%.

     

    Advantage:

    - Excellent structural resistance properties

    - High transparency

    - Good yellowing resistance

     

    Applications:

    - Applicable to the products for platinum vulcanization, molding and extrusion of vulcanization molding

     

    Packing & Storage:

    - 20kg/ carton lined with plastic bags or sheets.

    - The products have a shelf life of 9 months from date of manufacture depending on the shore hardness if stored at room temperature in the originally sealed container. 


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