Technical Specifications

Flame-retardant PBT grade

Glass-fiber reinforced polyester resin

Volume resistivity >= 1.00e+15 ohm-cm

Surface resistance >= 1.00e+15 ohm

Dielectric constant 3.2 at 50 to 60 Hz, 3.6 at 1 MHz

Dielectric strength 18 kV/mm at 3.20 mm, 24 kV/mm at 1.60 mm, 26 kV/mm at 0.80 mm

Linear CTE approximately 30.4 µm/m-°C parallel to flow, 73.2 µm/m-°C transverse to flow

Charpy impact 0.900 J/cm² at -30 °C, 0.500 J/cm² at -30 °C notch condition

Function Features

Good electrical insulation

Dimensional stability

Flame-retardant behavior

Heat and chemical resistance suitable for molded parts

Material Composition

Polybutylene terephthalate base polymer

Glass fiber reinforcement

Flame-retardant additive system

Structural Characteristics

Amorphous/crystalline polyester matrix with dispersed glass fibers

Moldable solid pellet form before processing

Working Principle

Acts as insulating structural polymer; mechanical load and electrical stress are carried by the molded PBT body after injection molding or extrusion.

Application Scenarios

Connectors

Relays

Switch housings

Terminal blocks

Electrical enclosures

Industrial molded components

Installation Requirements

Process by injection molding, extrusion, or machining of molded blanks

Follow manufacturer drying, melt temperature, mold temperature, and demolding guidelines

Usage Notes

Dry resin before processing

Avoid moisture absorption before molding

Use proper venting and mold temperature

Handle additives and glass fibers with adequate workplace controls