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Dielectric Properties
Material
3 GHz
10 GHz
Eps R
Tan δ
Eps R
Tan δ
Water 25° C
77
-1.5700
55
-5.4000
Ice
3.2
-0.0090
3.17
-0.0070
Borosilicate Glass
4.05
-0.0011
4.05
-0.0016
E-glass
6.11
-0.0060
Fused Quartz
3.78
-0.0001
3.78
-0.0001
Phenolic Fiberglass
4.4
-0.0290
4.37
-0.0360
Nylon 66
3.03
-0.0128
Polyethylene
2.25
-0.0003
2.25
-0.0004
Teflon
2.1
-0.0002
2.08
-0.0004
Polystyrene
2.55
-0.0003
2.54
-0.0004
Polyester Fiberglass
4.26
-0.0110
Epoxy Resin
3.04
-0.0210
2.91
-0.0184
Nitrile Rubber
3.13
-0.0200
3.03
-0.0190
Silicone Rubber
3
-0.0140
2.94
-0.0190
Paraffin Wax
2.25
-0.0002
2.24
-0.0002
Balsa Wood
1.22
-0.0100
1.2
-0.0083
Paper
2.7
-0.0560
2.62
-0.0400
Leather
3.1
-0.0380
Steak (bottom round)
40
-0.3000
30
-0.3700
JP-3 Jet Fuel
2.08
-0.0007
2.04
-0.0055
Kerosene
2.09
-0.0045
Vaseline
2.16
-0.0006
2.16
-0.0001
HB-40 Oil
2.4
-0.0030
2.34
-0.0017
Source: Dielectric Materials and Applications, Von Hippel.

Ohm / Square vs DBT (click to enlarge)
   
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