TECHNICAL DATA
INSULATION AND JACKETING MATERIALS PROPERTIES		  

INSULATION MATERIALS PROPERTIES CHART
PROPERTIES PVC PE POLYPROPYLENE TFE FEP KYNAR PVDF TPE TEFZEL ETFE NATURAL RUBBER HYPALON NEOPRENE SILICONE POLYURETHANE
1 Abrasion Resistance Good Good Fair Fair Good Good Good Good Excellent Good Excellent Fair Excellent
2 Heat Resistance Good Good Good Excellent Excellent Excellent Excellent Excellent Fair Excellent Good Excellent Good
3 Weatherability Good Excellent Excellent Excellent Excellent Good Excellent Good Fair Excellent Good Excellent Good
4 Flame Retardancy Excellent Poor Poor Excellent Excellent Excellent Excellent Excellent Poor Good Good Good Good
5 Water Resistance Good Excellent Excellent Excellent Good Good Good Excellent Good Good Excellent Excellent Good
6 Acid Resistance Good Good Excellent Excellent Excellent Excellent Excellent Excellent Fair Excellent Good Good Fair
7 Alkali Resistance Good Good Excellent Excellent Excellent Excellent Excellent Excellent Fair Excellent Good Good Fair
8 Aliphatic Hydro. Resis. Good Poor Fair Excellent Excellent Excellent Poor Excellent Poor Fair Good Poor Good
9 Aromatic Hydro. Resis. Poor Poor Fair Excellent Excellent Excellent Poor Excellent Poor Fair Fair Poor Poor

PROPERTIES ASTM
METHOD		 PVC PE POLY-
PROPYLENE		 TFE FEP PVDF TPE ASTM
METHOD		 TEFZEL
ETFE		 NATURAL
RUBBER		 HYPALON NEOPRENE SILICONE POLY-
URETHANE
1 Specific Gravity D-792-66 1.16-1.70 0.91-1.26 0.890-0.905 2.13-2.20 2.12-2.17 1.75-1.78 1.16-1.20 D-792-66 1.70-1.86 1.3-1.7 1.35-1.7 1.23-1.65 1.1-1.6 1.30
2 Tensile Strength, psi D-638-77 1500-4500 1500-2200 2900-4500 1000-3500 2700-3100 5200-7500 2300 D-638-77 6500 1500-4000 1200-2200 1200-2700 1000 >3500
3 Elongation, % D-412-75 40-400 180-600 700 275 250-330 500 500 D-412-75 200 300-700 300-600 300-700 100-500 540-750
4 Volume Resistivity ,
    ohm-cm		 D-257-78 104-1016 >1015 1.5 x 1015
2.8 x 1015		 >1018 2.0 x 1018 2 x 1014 2.2 x 1018 D-257-78 >1016 1013-1016 1012-1014 1011-1013 2 x 1014
8 x 1013		 11 x 1014
5 Dielectric Strength,
    volts/mil		 D-149-75 250-500 230-1420 450-850 500 500-600 260 625 D-149-75 500 --- 500 600 100-700 330-630
6 Dielectric Constant
    @ 60 Hz		 D-150-78 3.2-9.0 2.28-2.50 2.50-2.75 2.0-2.1 2.1 8.40 2.8 D-150-78 2.6 --- --- --- --- 5.4-7.6
7 Dielectric Constant
    @ 1 kHz		 D-150-78 3.0-8.0 2.27-2.50 2.50-2.65 2.0-2.1 2.1 7.9 2.8 D-150-78 2.6 2.3-3.0 9.0-11.0 5.0-7.0 3.0-3.5 5.6-7.6
8 Power Factor
    (Dissipation) @ 60 Hz		 D-150-78 .007-0.15 0.003-0.044 0.0054-0.0070 0.0004 0.0002 0.049 0.002 D-150-78 --- --- --- --- --- 0.015-0.046
9 Power Factor
    (Dissipation) @ 1 kHz		 D-150-78 .009-0.16 .00048-
.00049		 .0036-.0050 0.0001 0.0007 0.019 0.002 D-150-78 0.0006 .00023-
.00030		 0.05-0.07 3.5 0.001-0.010 0.043-0.060


The above chart reflects a qualitative comparison of insulating properties and should be used as a general guide only.
For specific compound information, consult Alpha's Engineering Staff.
Note:  All values shown are nominal.
 
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