When processed properly, Long Fiber Compounds retain their fiber length during molding. Correct processing is critical to maintaining high-quality parts; breaking the fibers during processing can result in sharply reduced material properties.

These molding guidelines are offered as suggestions and may be subject to modification, depending on your specific material or design. Please contact RTP Company’s technical service representatives for assistance.

Engineering Design Considerations

Comparison of Long & Short Fiber Pellets

Equipment Considerations
(Three Piece Screw Tip Ring Valve)

Tooling Considerations

Processing Considerations

Molding Temperatures

Minimizing Wear in Processing Equipment

Drying Long Fiber Compounds
(Typical Dehumidifying Closed System for Drying Long Fiber Compounds)


Download a copy of our Long Glass Fiber Thermoplastics brochure today!

Learn more about RTP Company’s Long Glass Fiber (LGF) Compounds technology and how it can significantly improve impact resistance without sacrificing strength and stiffness.

RTP Company - Long Glass Fiber Compounds Brochure