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Fillteck® 250 is a white polyester fiber with a controlled 6 mm fiber length and 3‑denier fiber width, offering consistent physical properties for use in plastics, rubber, and other technical formulation.
Fillteck® 250 is a white polyester fiber designed for use as an industrial and technical ingredient in professional applications. It features a controlled fiber length and denier, offering consistent physical properties for formulation and processing needs
Form: White fibers
Average Fiber Length: 6 mm
Fiber Width: 3 denier
Specific Gravity: 1.38
Tensile Strength: 3.5 gpd
Young’s Modulus: 70 gpd
Melting Characteristics: Melts at 495°F
Ignition Point: 1000°
Primary Chemistry:
Polyester fiber
Inconsistent fiber dimensions that can negatively impact formulation uniformity
Limited thermal tolerance in applications requiring elevated processing temperatures
Variability in mechanical reinforcement performance due to uncontrolled fiber properties
Handling challenges associated with unstable or poorly characterized fiber materials
Compounding
Masterbatch
Injection Molding
Extrusion
Thermoset formulations
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