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Elastomere Materials

 

G

2G

3G

4G

5G

6G

NR 
SBR

SiR

EPR

EVA

CR

CSM

Natural Rubber 
Styrol- 
Butadiene Rubber 
Compounds

Silicone Rubber

Ethylen- 
Propylene
 
Rubber 
Compounds

Ethylene- 
Vinylacetate

Copolymere
Compounds

Poly- 
Chloroprene

Compounds

Chloro- 
Sulfonated
 
Polyethylene
Compounds

Density g/cm3

1.5-1.7

1.2-1.3

1.3-1.55

1.3-1.5

1.4-1.65

1.3-1.6

Breakdown Voltage KV/mm (20oC)

20

20

20

30

20

25

Specific Volume Resistivity Ω cm (20oC)

1012-1015

1015

1014

1012

1010

1012

Dielectric Constant 50 Hz (20oC)

3-5

3-4

3-3.8

5-6.5

6-8.5

6-9

Dielectric Loss Factor (tan δ)

1.9 x 10-2

6x 10-3

3.4 x 10-3

2 x 10-2

5 x 10-2

2.8 x 10-2

Working 
Temperature

Permanent oC

-65 +60

-60 +180

-30 +90

-30 +125

-40 +100

-30 +80

Short Time oC

+120

+260

+160

+200

+140

+140

Melt  Temperature +oC

-

-

-

-

-

+160

Flame Resistance

Flammable

High Flash Point

Flammable

Flammable

Self 
Extinguishing

Self 
Extinguishing

Oxygen Index LOI (% O2)

≤22

25-35

≤22

≤22

30-35

30-35

Heating Value H0 MJ.kg-1

21-25

17-19

21-25

19-23

14-19

19-23

Thermal Conductivity W.K-1.m-1

-

0.22

-

-

-

-

Corrosive Gases In Case Of Fire

No

No

No

No

Hydrogen Chloride

Hydrogen Chloride

Radiation Resistance max Mrad

100

50

200

100

50

50

Tensile Strength N/mm2

5-10

5-10

5-10

8-12

10-20

10-20

Elongation At Break %

300-600

300-600

200-400

250-350

400-700

350-600

Shore Hardness

60-70 (A)

40-80 (A)

65-85 (A)

70-80 (A)

55-70 (A)

60-70 (A)

Abrasion Resistance

Moderate

Moderate

Moderate

Moderate

Medium

Medium

Water Absorption %

1.0

1.0

1.0

1.0

1.0

1.5

Halogen Free

No

Yes

Yes

Yes

No

No

Weather Resistance

Moderate

Good

Very Good

Good

Very Good

Very Good

Cold Resistance

Very Good

Very Good

Good

Good

Moderate

Moderate

 

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