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CPE Rubber-CM series

CM series

Chlorinated polyethylene is a heat, weathering and oil resistant elastomer that has used in many wire/cable, hose, automotive and industrial parts for many years.

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WELLPREN®ELASTOMER: CM SERIES

Chlorinated polyethylene is a heat, weathering and oil resistant elastomer that has used in many wire/cable, hose, automotive and industrial parts for many years. Its unique combination of heat and oil resistance makes it an ideal choice for many under the hood applications. It is also gaining increasing use in many industrial hoses, replacing some well-established materials such as CR due to concerns over high cost and availability. Since CM provides superior heat aging and excellent ozone resistance, it is increasingly used to replace some traditional materials to upgrade the end products performance.

1552376222985830.jpgBy using HPDE of different molecular weight and molecular weight distribution, adjusting the production process, many types of WELLPREN®CM elastomers can be produced by Sundow, these types are commercially available in the market in large scale, which have different chlorine contents and Mooney viscosities, applicable for different fields and different processing conditions.

Characteristics of WELLPREN®CM

As special synthetic rubber, WELLPREN®CM has superior comprehensive performances and good performance-price ratio. Therefore, lots of customers choose WELLPREN®CM for substitution of CR and CSM.

◎ Excellent chemical, heat, and ignition resistance

◎ Performance over a broad temperature range

◎ Outstanding heat-aging characteristics

◎ Unique crumb form, permitting easy blending, formulating, and processing

◎ Polymer shelf stability measured in years

◎ Good processability on equipment common to the rubber industry

◎ Attractive economics




Table 1 Typical physical property of WELLPREN® CM series

Items

CM3595NC

CM3588M

CM3678M

CM3678MH

CM3565N

CM3550N

CM4080M

CM3080M

CM3055M

CM1000

CM674

Appearance

White powder

White powder

White powder

White powder

White powder

White powder

White powder

White powder

White powder

White powder

White powder

Chlorine content, %

35

35

36

36

35

35

40

30

30

35

25

Heat of fusion, J/g

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

1.0

50

Volatiles, %

0.2

0.2

0.1

0.1

0.2

0.2

0.2

0.2

0.2

0.2

0.2

Impurity particles, piece/100g

10

10

10

10

10

10

10

10

10

10

10

Hardness, Shore A

54

55

54

57

52

50

55

58

58

54

80

Tensile strength, Mpa

12.5

12.5

11.5

11.5

11.0

10.0

11.0

13.0

12.0

12.0

13.0

Elongation at break, %

800

800

750

750

800

800

750

700

800

850

700

Remark: the above date should not be regarded as the final supply specification


 

Table 2 Selection Guide of WELLPREN® CPE CM series

Grade

Characteristics

Application

Comparable grade

CM3595NC

Highest molecular weight, relatively narrow molecular weight distribution, highest Mooney viscosity and best mechanical property

High viscosity grade for highly filled hose, cable jackets, HPN cords, sponge and molded products.

T-CM0836

T-CM3551

CM3588M

High molecular weight, slightly lower Mooney viscosity than CM3595NC, superior mechanical performances and easy for formulation

Medium to high viscosity grade for improved extrusion and good mechanical properties at higher filler loadings.

T-CM0836

T-CM3551

CM3678M

Medium molecular weight and Mooney viscosity, superior mechanical performances, good processibility, quick extrusion and good final product appearance.

Medium viscosity grade, widely used for wire/cable, hose and molded products.

T-CM0136

T-CM3630

CM3678MH

Medium molecular weight and Mooney viscosity, high modulus, superior mechanical performances, good pricessibility, quick extrusion and good final product appearance.

Specially designed for hose application.

T-CM0136

T-CM3630

CM3565N

Medium to low molecular weight, Mooney viscosity between 60 and 70, superior mechanical performances, applied in many fields and with good processibility.

Low viscosity grade for hose, sponge, wire and cable and molded products.

T-CM0636

CM3550N

Lowest molecular weight, lowest viscosity, best processbility, quick extrusion and excellent final productd appearance.

Wire/cable, hose and molded products.


CM4080M

High chlorine content, moderate Mooney viscosity, superior mechanical property, excellent flame retardancy and oil resistance.

Used for products with requirements for high mechanical performances, flame retardancy and oil resistance, such as flame retardant and oil resistant films, tapes, hoses, wire and cable.

T-CM631

CM3080M

High molecular weight, superior mechanical performance, high modulus, low chlorine content, excellent low temperature property, excellent absorption ability to filler.

Magnetic rubber, industrial and automobile hose, etc.


CM3055M

Lower chlorine grade for improved heat resistance and better low temperature properties. Medium molecular weight, low chlorine content, high modulus and easy to process.

Industrial and automobile hose.

T-CM0730

CM1000

Highest molecular weight, outstanding mechanical performance, excellent low temperature property, improved oil resistance and high filler absorption

Specially designed for magnetic rubber application, especially for oil and heat resistance magnetic rubber application.


CM674

Lowest chlorine, medium viscosity, semi-crystallinity and good compatibility with PE and PP.

Blended with PE, PP for thermoplastic application

T-674

Above is just part of our grades, if you want to know further information or more grades, please contact info@sundow.com.


cms.jpg

Application of WELLPREN®CM

1. Automobile Hoses and Industrial Hoses. 

2.  Wires and Cables. 

3. Various Types of Specialized Rubber Products. 

4. Combined use of WELLPREN® CM with other rubbers like EPDM, NBR and BR.

5. Application in Magnetic Materials.