polymer_dielectric_constant_291

polymer

This is a polymer material engineered or formulated to achieve a dielectric constant around 2.91, placing it in the moderate-permittivity range suitable for electrical insulation and signal transmission applications. The specific polymer base composition is not detailed in this record, but such materials are typically engineered thermoplastics or thermosets (polyimides, epoxies, polystyrenes, or fluoropolymers) modified or selected for controlled electromagnetic properties. These dielectric polymers are widely used in electronics, telecommunications, and power distribution where balancing electrical insulation performance, processability, and cost is critical.

electrical insulationPCB laminates and substratescable dielectricscapacitor filmshigh-frequency connectorselectromagnetic shielding

Compliance & Regulations

?UL 94?Conflict Free?RoHS?REACH?TSCA?Prop 65

Units:

si imperial

Property	Value	Unit	Conditions	Source
Dielectric Constant (Relative Permittivity)(εr)	5.210 range 4.420–6.000median 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.

polymer_dielectric_constant_291

Electrical Properties

Regulatory Screening

Environmental

Safety & Biocompatibility