Dielectric Constants of Insulations

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INSULATION MATERIALNOMINAL
EPR2.24
Kynar®6.4
Nylon4.0
Polyester2.80
Polyethylene (Cellular)1.50
Polyethylene (Cross-Linked)2.30
Polyethylene2.26
TFE (Cellular)1.4
Polyethylene (High Density)2.34
Polyethylene (Low Density)2.28
Polypropylene2.24
Silicone Rubber2.6
Polyvinyl Chloride2.7
Polyvinyl Chloride (Irradiated)2.7
Polyvinyl Chloride (Semi-Rigid)4.3
Teflon® FEP2.15
Teflon® TFE2.15
Tefzel2.6
FEP (Cellular)1.5

Teflon® is a registered trademark of DuPont
Kynar® is a registered trademark of Penwalt