Pultrusion is a continuous process for producing full or hollow glass reinforced profiles of different shapes. Depending on the design and the shape, glass ratio ranges from 30 to 70 percent in weight. Pultruded profiles are used for many applications in electrical, building and consumer goods areas.
Pultruded parts incorporate a variety of reinforcements ranging from Type 30® single-end roving and bulky roving to surfacing veils, continuous filament mats and fabrics.
After reinforcement is impregnated with resin, the material is pulled through a heated die that gives it a cross-sectional shape, and is then cured to create the composite profile.