The Pultrusion Process:

The pultrusion process makes it possible to develop composites, which are hybrid materials whose final properties are superior to those of the individual components of which they are made up.

The pultrusion manufacturing process came about in 1951, although production did not take place until 1956. It began with a patent for automated methods of the type that are now associated with the pultrusion process and this are how composite structural materials appeared. This technology produces pieces with large amounts of continuous fiber, and therefore high mechanical properties.

The pultrusion forming technique is a highly automated process used for the manufacture of constant volume profiles made of composite materials. Glass fibers, fabrics or mats are used that act as structural reinforcement. These reinforcements can be inserted into the mould after being impregnated in the bath, or can be placed in the mould dry and then the resin injected into it, giving the profile the desired shape. The use of composite materials offers the advantage of meeting specific strength and resistance requirements for each particular application. This results in a strength/weight ratio similar to the ones found in aerospace applications. The combination of longitudinal and woven fibers makes for an incomparable profile, low in weight with high strength and resistance.

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