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General purpose grade high temperature resistant rubber

    This product is specially designed for the products working at high temperature. It is manufactured with special formula and process, without changing the unique cold resistance of silicone rubber and the excellent physical and mechanical properties, covering a wide range of applications. The three series are slightly different in the appearance: the common type is milk-white, translucent or white; the standard type is light yellow or maroon and the fumed type is light yellow. This product can be used at 250℃ for a long time and can withstand an instant temperature of 300℃. It is applicable to production of various temperature resistant seals, rubber rolls and sealing joint strips, etc.

     

           Typical Properties:

     

    Category

    Item

    General purpose

    MY DI140

    MY DI150

    MY DI160

    MY DI170

    MY DI180

    Appearance

    Ivory

    Vulcanization

    Hardness Shore A

    40±3

    50±3

    60±3

    70±3

    80±3

    Tensile strength MPa

    6.0

    7.5

    7.5

    7.0

    6.5

    Elongation at break %

    420

    380

    320

    220

    180

    Breaking set %

    7

    8

    8

    8

    7

    Tear strength B KN/m

    18

    20

    20

    20

    18

    Post-curing

    Hardness Shore A

    45±3

    55±3

    65±3

    75±3

    85±3

    Tensile strength MPa

    6.5

    7.5

    7.0

    7.0

    6.5

    Elongation at break %

    400

    350

    300

    200

    150

    Tear strength B KN/m

    16

    18

    18

    18

    16

    Specific density 25°C g/cm³

    1.13±0.05

    1.15±0.05

    1.19±0.05

    1.22±0.05

    1.25±0.05

    Compression set 180*22h %

    35

    35

    25

    30

    25

    Property variation percent during aging (250*72h)

    Hardness

    -5

    -6

    -4

    5

    6

    Tensile strength %

    -45

    -50

    -50

    -40

    -25

    Elongation %

    -20

    -15

    -20

    -35

    -20

    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 physical properties

    - Being used at 250℃ for a long time

    - Withstanding an instant temperature of 300℃

     

    Applications:

    - Applicable to various high-temperature-resistant sealing elements, rubber rolls and sealing strips

     

    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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