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by SpecialChem

KEPEX® 3300M

KEPEX® 3300M is an unfilled, non-reinforced and mold releasing Polybutylene Terephthalate (PBT) grade. Offers thermal properties with long term heat resistance between 120°C and 130°C. Possesses good mechanical-, electrical-, anti-creep-, anti-fatigue properties and low moisture absorption. Provides good surface, chemical resistance, superior dimensional stability, friction and wear properties. Is suitable for processing by injection molding. Used in contact lens frame. Is a RoHS-compliant grade.

KEPEX® 3300M Properties

Mechanical Properties

Value & Unit

Test Condition

Test Method

Tensile Strain

15 %

(at Break, 23°C)

ISO 527-2

Tensile Strength

63 MPa

ISO 527

Flexural Strength

94 MPa

ISO 178

Injection Molding Properties

Value & Unit

Test Condition

Test Method

Mold Temperature

70 - 90 °C

Barrel Temperature

230 - 250 °C

Suggested Max Moisture

0.05 %

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KEPEX® 3300M

KEPEX® 3300M Properties

Mechanical Properties

KEPEX® 3300M Processing Guidelines

Injection Molding Properties