Process Description
The pultrusion process involves pulling reinforcing fibers that have been wet with a resin binder through a heated steel forming die. This continuous pultrusion operation can be readily automated and allows for low labor involvement. The process is adaptable to both simple and complex cross-sectional shapes. High fiber loadings can yield structural shapes with very good structural properties.  View a short video of the pultrusion process.  Or this video.  Another good overview of pultusion is available at ACMA’s Pultrusion Industry Council’s site.