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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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