Pultrusion is a term that describes a manufacturing process for producing continuous lengths of FRP (fiberglass reinforced polymer) where reinforcing fibers are saturated with resin and pulled through a heated die to form a part. The result is a straight, constant cross-section profiles similar to standard steel shapes.
Pultruded composite sections can be used to design and install lightweight, corrosion-resistant and electrically non-conductive alternatives to steel structures, particularly where speed and ease of construction are important. Pultruded FRP has performance characteristics similar to other construction metals, but unlike steel, it is EM/RF transparent and doesn’t disrupt equipment signals.