RF Cafe: Insulation & Jacketing Materials Properties

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Insulation & Jacketing Materials Properties

Property

ASTM
Method

Tefzel ETFE¹

Natural Rubber

Hypalon²

Neoprene

Silicone

Polyurethane

PVC³

Polyethylene

Polypropylene

TFE⁴

FEP⁵

Kynar PVDF⁶

TPE⁷

Abrasion
Resistance

Good

Excellent

Good

Excellent

Fair

Excellent

Good

Fair

Good

Heat
Resistance

Excellent

Fair

Excellent

Good

Excellent

Good

Excellent

Weatherability

Good

Fair

Excellent

Good

Excellent

Good

Excellent

Good

Excellent

Flame
Retardancy

Excellent

Poor

Good

Excellent

Poor

Excellent

Water
Resistance

Excellent

Good

Excellent

Good

Excellent

Good

Acid
Resistance

Excellent

Fair

Excellent

Good

Fair

Good

Excellent

Alkali
Resistance

Excellent

Fair

Excellent

Good

Fair

Good

Excellent

Aliphatic
Hydro.
Resistance

Excellent

Poor

Fair

Good

Poor

Good

Poor

Fair

Excellent

Poor

Aromatic
Hydro.
Resistance

Excellent

Poor

Fair

Poor

Fair

Excellent

Poor

Specific
Gravity

D-792-66

1.70-1.86

1.3-1.7

1.35-1.7

1.23-1.65

1.1-1.6

1.3

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

Tensile
Strength
(psi)

D-638-77

6500

1500-4000

1200-2200

1200-2700

1000

>3500

1500-4500

1500-2200

2900-4500

1000-3500

2700-3100

5200-7500

2300

Elongation
(%)

D-412-75

200

300-700

300-600

300-700

100-500

540-750

40-400

180-1\600

700

275

250-330

500

Volume
Resistivity
(ohm-cm)

D-257-78

>1016

10¹³-10¹⁶

10¹²-10¹⁴

10¹¹-10¹³

~10¹⁴

~10¹⁵

10⁴-10¹⁶

>10¹⁵

~10¹⁵

>10¹⁸

2x10¹⁸

2x10¹⁴

2.2x10¹⁸

Dielectric
Strength
(V/mil)

D-149-75

500

600

100-700

330-630

250-500

230-1420

450-850

500

500-600

260

625

Dielectric
Constant
@1 kHz

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

3.0-8.0

2.27-2.50

2.50-2.65

2.0-2.1

2.1

7.9

2.8

Power Factor
(Dissipation)
@ 1 kHz

D-150-78

0.0006

0.00023-0.00030

0.05-0.07

3.5

0.001-0.010

0.043-0.060

0.009-0.16

0.00048-0/00049

0.0036-0.0050

0.0001

0.0007

0.019

0.002

1: Ethylene TetrafluoroEthylene by DuPont.
2: Chlorosulfonated Polyethylene by DuPont.
3: Polyvinyl Chloride.
4: Tetrafluorethylene is the original Teflon resin invented by DuPont in 1938.
5: Fluorinated Ethylene Propylene is a ""Teflon"" fluorocarbon resin and is a registered T.M. of the DuPont Company.
6: Polyvinylidene Fluoride.
7: Thermoplastic Elastomer.

Data obtained from Alpha Wire Company printed catalog table
Here is a great resource from the Anixter for insulation definitions

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