Pultrusion
Process Overview: Pultrusion
Pultrusion is a highly automated closed mold process of pulling continuous fiber rovings, veils, or fabrics through a catalyzed resin bath and into a heated metal die to form parts with consistent cross sections, high strength, and dimensional stability.
The pultrusion process produces products with extremely high fiber content that are used in a wide variety of industrial, consumer and infrastructure applications. This continuous process incorporates a variety of fibers including glass, carbon, or aramid and other reinforcements including knitted fabrics, continuous filament glass mat, and veils for improved surface finish. Multiple resin systems can also be used depending on the end-use requirements. Fiber is pulled from creels into a catalyzed resin bath and into a heated metal dye that shapes and cures the part. The cured profile is pulled into the machine cutting area where sections are cut and stacked for further processing or finishing.
Example Pultrusion Applications
I‐beams, channels, and girders
Rebar
Frameworks
Gratings and decking
Utility poles and cross arms
Ladders
Fencing
Rods, bars, and tubing
Technical and HSE Support for Pultrusion
Composites One offers personalized technical support for customers manufacturing with the process of pultrusion, as well as the most up-to-date information on regulatory and compliance requirements.
