Long Glass Fiber Molding

WPS has proven experience in the handling, drying, and processing of LGF. The material experience includes processing of fiber lengths up to 11mm. There are several mistakes commonly made when processing LGF.

WPS has specific knowledge about how to overcome these mistakes. Among the most common are material conveyance, clogging, loader size, filtering, injection unit sizing, wrong screw, nozzle configuration, gating, and flow paths in the mold.

Additionally WPS has specific experience in the use of gas assist molding to enhance the surface finish with LGF. By fully exploiting the gas assist process WPS can influence the resin to the surface of the molding and therefore provide an excellent surface finish.

WPS also has specific knowledge concerning the use of color with LGF. Many of the normally used color concentrate systems cause undesirable effects with LGF. Certain color systems can reduce the normal strength of the LGF material by 75%

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