| |
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
|