polymer_dielectric_constant_43

polymer

This is a synthetic polymer engineered to exhibit a high dielectric constant (approximately 4.3), making it suitable for electrical insulation and capacitive applications where signal integrity and dielectric performance are critical. Polymers in this dielectric range are widely used in electronics manufacturing, telecommunications, and power distribution systems where they must balance electrical insulation properties with mechanical durability and processability. The material is notable for combining polymer ease-of-manufacture with dielectric performance superior to unfilled commodity plastics, though typically lower than ceramic or composite alternatives—positioning it as a practical choice for cost-sensitive applications requiring moderate-to-good electrical performance without the brittleness or processing difficulty of inorganic dielectrics.

electrical insulationcapacitor dielectricsPCB substrates and laminatestelecommunications cableshigh-voltage encapsulationRF/microwave circuit boards

Compliance & Regulations

?UL 94?Conflict Free?RoHS?REACH?TSCA?Prop 65
Units:
siimperial
PropertyValueUnitConditionsSource
Dielectric Constant (Relative Permittivity)(εr)
—
median of 2 measurements
-——
Verified Unverified Low confidence (<80%) Link to source

Regulatory Screening

Environmental

Safety & Biocompatibility

RoHS, REACH, and Prop 65 statuses are validated against official substance lists (ECHA SVHC Candidate List, OEHHA Prop 65, RoHS Annex II). Other regulations are estimated from composition and material classification. All screening is a starting point for due diligence — always verify with your supplier before making compliance decisions.