The Universal Selection Source: Plastics & Elastomers


Dielectric Constant

Dielectric Constant is also called electric permittivity or simply permittivity. Dielectric Constant characterizes the ability of an insulator to store electrical energy. Dielectric Constant is the ratio of the capacitance induced by two metallic plates with an insulator between them, to the capacitance of the same plates with air or a vacuum between them. A dielectric constant of 2 means an insulator will absorb twice more electrical charge than vacuum. Dielectric Constant is a dimensionless measure.

Usual standards to measure the Dielectric Constant of plastics include ASTM D2520, ASTM D150 or IEC 60250.

Name of the polymer Explicit name of the polymer Min Value Max Value
ABS Acrylonitrile-Butadiene Styrene 2.700 3.200
ABS FR Acrylonitrile-Butadiene Styrene flame retardant 2.800 3.000
ABS High Heat Acrylonitrile-Butadiene Styrene High Heat 2.400 5.000
ABS High Impact Acrylonitrile-Butadiene Styrene High Impact 2.400 5.000
ABS/PC Acrylonitrile-Butadiene Styrene/Polycarbonate 2.900 3.200
ABS/PC 20% GF Acrylonitrile-Butadiene Styrene/Polycarbonate 20% glass fiber 3.100 3.200
Amorphous TPI Blend, Ultra-high heat, Chemical Resistant (Standard Flow) Amorphous TPI Blend, Ultra-high heat, Chemical Resistant (Standard Flow) 3.500 3.500
ASA Acrylonitrile Styrene Acrylate 3.300 3.800
ASA/PC Acrylonitrile Styrene Acrylate/Polycarbonate 3.000 3.400
ASA/PC FR Acrylonitrile Styrene Acrylate/Polycarbonate flame retardant 3.200 3.200
CA - Cellulose Acetate Cellulose Acetate 3.000 8.000
CAB - Cellulose Acetate Butyrate Cellulose Acetate Butyrate 3.000 7.000
CP - Cellulose Proprionate Cellulose Proprionate 3.000 4.000
CPVC - Chlorinated Polyvinyl Chloride CPVC - Chlorinated Polyvinyl Chloride 3.000 6.000
ECTFE Ethylene Chlorotrifluoroethylene 2.570 2.590
ETFE Ethylene Tetrafluoroethylene 2.600 2.600
EVA Ethylene Vinyl Acetate 2.500 3.000
EVOH Ethylene Vinyl Alcohol 4.800 5.600
FEP Fluorinated Ethylene Propylene 2.100 2.100
HDPE - High Density Polyethylene HDPE - High Density Polyethylene 2.300 2.300
HIPS - High Impact Polystyrene HIPS - High Impact Polystyrene 2.400 4.800
HIPS FR V0 High Impact Polystyrene flame retardant V0 2.000 3.000
LCP Liquid Crystal Polymer 3.300 3.300
LCP GF Liquid Crystal Polymer glass fiber 3.000 4.000
LCP MINERAL Liquid Crystal Polymer mineral 3.000 5.900
LDPE - Low Density Polyethylene LDPE - Low Density Polyethylene 2.300 2.300
LLDPE - Linear Low Density Polyethylene LLDPE - Linear Low Density Polyethylene 2.300 2.300
MABS Transparent Acrylonitrile Butadiene Styrene 2.800 3.000
PA 11 30% Glass fiber reinforced Polyamide 11 30% Glass fiber reinforced 4.800 4.800
PA 11 conductive Polyamide 11 conductive 3.000 9.000
PA 11 flexible Polyamide 11 flexible 3.000 9.000
PA 11 rigid Polyamide 11 rigid 3.000 9.000
PA 12 conductive Polyamide 12 conductive 3.000 9.000
PA 12 fiber reinforced Polyamide 12 fiber reinforced 3.000 9.000
PA 12 flexible Polyamide 12 flexible 3.000 9.000
PA 12 glass filled Polyamide 12 glass filled 3.000 9.000
PA 12 rigid Polyamide 12 rigid 3.000 9.000
PA 46 Polyamide 46 3.400 3.800
PA 46 30% GF Polyamide 46 30% glass fiber 4.000 4.600
PA 6 Polyamide 6 4.000 5.000
PA 6-10 Polyamide 6-10 3.000 4.000
PA 66 Polyamide 6-6 4.000 5.000
PA 66 30% GF Polyamide 6-6 30% glass fiber 3.500 5.600
PA 66 30% mineral filled Polyamide 6-6 30% mineral filled 4.000 5.000
PA 66 IM 15-30% GF Polyamide 6-6 impact modified 15-30% glass fiber 3.400 4.200
PA 66 impact modified Polyamide 6-6 impact modified 2.900 5.000
PAI Polyamide-Imide 3.900 7.300
PAI 30% GF Polyamide-Imide 30% glass fiber 4.200 6.500
PAR Polyarylate 3.300 3.300
PARA 30-60% GF Polyarylamide 30-60% glass fiber 3.900 4.500
PBT Polybutylene Terephthalate 2.900 4.000
PBT 30% GF Polybutylene Terephthalate 30% glass fiber 3.000 4.000
PC 20-40% GF Polycarbonate 20-40% glass fiber 3.000 3.500
PC 20-40% GF FR Polycarbonate 20-40% glass fiber flame retardant 3.000 3.800
PC high heat Polycarbonate high heat 2.800 3.000
PC/PBT Polycarbonate/Polybutylene Terephthalate blend 2.950 3.140
PC/PBT glass filled Polycarbonate/Polybutyleneterphtalate blend glass filled 3.300 3.900
PCTFE Polymonochlorotrifluoroethylene 2.000 3.000
PE 30% GF Polyethylene 30% glass fiber 2.700 2.800
PEEK Polyetheretherketone 3.200 3.200
PEEK 30% CF Polyetheretherketone 30% carbon fiber 3.200 3.400
PEEK 30% GF Polyetheretherketone 30% glass fiber 3.300 4.200
PEI Polyetherimide 3.100 3.200
PEI 30% GF Polyetherimide 30% glass fiber 3.000 4.000
PEI mineral filled Polyetherimide mineral filled 3.000 4.000
PEKK– Low cristallinity grade Polyetherketoneketone– Low cristallinity grade 3.300 3.300
PESU Polyethersulfone 3.500 4.100
PESU 10-30% GF Polyethersulfone 10-30% glass fiber 4.200 4.300
PET Polyethylene Terephtalate 3.000 4.000
PET 30% GF Polyethylene Terephtalate 30% glass fiber 3.000 4.000
PET G Polyethylene Terephtalate Glycol 3.000 4.000
PE-UHMW Polyethylene -Ultra High Molecular Weight 2.300 2.300
PFA Perfluoroalkoxy 2.100 2.100
PI Polyimide 3.100 3.550
PMMA Polymethylmethacrylate (Acrylic) 2.000 5.000
PMMA high heat Polymethylmethacrylate (Acrylic) high heat 3.200 4.000
PMMA Impact modified Polymethylmethacrylate (Acrylic) impact modified 2.900 3.700
PMP Polymethylpentene 2.100 3.600
PMP 30% GF Polymethylpentene 30% glass fiber 2.400 2.400
PMP mineral filled Polymethylpentene mineral filled 2.300 2.300
POM Polyoxymethylene (acetal) 3.300 4.700
POM impact modified Polyoxymethylene (acetal) impact modified 4.000 4.300
POM low friction Polyoxymethylene (acetal) low friction 3.000 4.000
PP 10-20% GF Polypropylene 10-20% glass fiber 2.600 2.600
PP 10-40% mineral filled Polypropylene 10-40% mineral filled 2.300 2.300
PP 10-40% TALC Polypropylene 10-40% talc 2.300 2.300
PP 30-40% GF Polypropylene 30-40% glass fiber 2.600 2.600
PP copo Polypropylene copolymer 2.300 2.300
PP homo Polypropylene homopolymer 2.300 2.300
PP impact modified Polypropylene impact modified 2.300 2.300
PPA Polyphthalamide 4.300 4.300
PPA – 30% mineral Polyphthalamide– 30% mineral 4.000 4.200
PPA – 33% glass fiber Polyphthalamide – 33% glass fiber 4.400 4.600
PPA – 33% glass fiber – high flow Polyphthalamide– 33% glass fiber – high flow 3.700 3.900
PPA – 45% glass fiber Polyphthalamide– 45% glass fiber 4.400 4.600
PPE Polyphenylene Ether 2.700 2.700
PPE 30% GF Polyphenylene Ether 30% glass fiber 2.900 2.900
PPE FR Polyphenylene Ether flame retardant 2.700 2.700
PPS Polyphenylene Sulfide 3.000 3.300
PPS 20-30% GF Polyphenylene Sulfide 20-30% glass fiber 3.300 3.800
PPS 40% GF Polyphenylene Sulfide 40% glass fiber 4.000 4.000
PPS GF & mineral Polyphenylene Sulfide glass fiber & mineral 5.000 5.000
PPSU Polyphenylene Sulfone 3.400 3.500
PS 30 % GF Polystyrene 30% glass fiber 2.500 2.500
PS crystal Polystyrene crystal 2.400 2.700
PS high heat Polystyrene high heat 2.400 2.700
PSU Polysulfone 3.000 3.200
PSU 30% GF Polysulfone 30% glass fiber 3.600 3.700
PTFE Polytetrafluoroethylene 2.100 2.100
PTFE 25% GF Polytetrafluoroethylene 25% glass fiber 3.000 3.000
PVC plasticized Polyvinyl Chloride plasticized 3.000 5.000
PVC plasticized filled Polyvinyl Chloride plasticized filled 3.000 5.000
PVC rigid Polyvinyl Chloride rigid 3.000 4.000
PVDC Polyvinylidene Chloride 3.000 6.000
PVDF Polyvinylidene Fluoride 6.000 9.000
SAN Styrene Acrylonitrile 2.500 3.400
SAN 20% GF Styrene Acrylonitrile 20% glass fiber 3.200 3.800
SMA Styrene Maleic Anhydride 2.800 2.800
SMA 20% GF Styrene Maleic Anhydride 20% glass fiber 3.300 3.300
SMMA Styrene Methyl Methacrylate 3.200 3.200
SRP Polyphenylene (Self reinforced) 3.100 3.100

Disclaimer: all data and information obtained via the Polymer Selector including but not limited to material suitability, material properties, performances, characteristics and cost are given for information purpose only. Although the data and information contained in the Polymer Selector are believed to be accurate and correspond to the best of our knowledge, they are provided without implied warranty of any kind. Data and information contained in the Polymer Selector are intended for guidance in a polymer selection process and should not be considered as binding specifications. The determination of the suitability of this information for any particular use is solely the responsibility of the user. Before working with any material, users should contact material suppliers in order to receive specific, complete and detailed information about the material they are considering. Part of the data and information contained in the Polymer Selector are genericised based on commercial literature provided by polymer suppliers and other parts are coming from assessments of our experts.

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