ZOLTEK Corporation Pultruded Profiles

ZOLTEK’s™ Pultruded Profiles are pre-cured, thick-ply carbon fiber laminates for ideal structural reinforcement applications. Available in a variety of thicknesses and complex shapes, our pultrusion products deliver optimized properties with high fiber volumes, nearly zero void content, and locked-in filament alignment.

ZOLTEK PX35 carbon fiber tows are fed into our proprietary impregnation and curing process which creates smooth carbon fiber laminates resulting in efficient laydown when building thickness. The specific fiber alignment achieved with pultrusion delivers consistently better overall properties in laminates than any other composite manufacturing process. Depending on the end application, these pultruded profiles are typically produced with a thermoset epoxy or vinyl ester resin in a proprietary low-cost, high-throughput process.

Pultruded profiles are production-ready carbon composites for infrastructure applications, deep sea exploration, wind energy, and other applications benefiting from the unique properties of pultruded carbon fiber parts.

Applications: Wind Energy, Infrastructure, Offshore Drilling, Mining, Other Structural Reinforcement Applications

Product FeatureTest MethodPX35/Vinyl EsterPX35/Vinyl EsterPX35/EpoxyPX35/Epoxy
Fiber Volume Fraction (Mean)ASTM D317162%69%65%69%
Flexural E Modulus (Mean)ASTM D6272151 GPa163 GPa135 GPa167 GPa
Flexural Strain (Characteristic)ASTM D62720.88%1.02%1.1%1.04%
Interlaminar Shear Strength (Characteristic)ISO 1413062 MPa67 MPa69 MPa71 MPa
Transverse Strength (Characteristic)ASTM D790/ISO 52772 MPa60 MPa62 MPa108 MPa
Axial Tensile ModulusISO 527/DIN EN 2561141 GPa161 GPa144 GPa164 GPa
Axial Compressive ModulusASTM D6641/DIN EN 2850133 GPa148 GPa135 GPa145 GPa
Linear Tensile Strain to Failure (Characteristic)ISO 527/DIN EN 25611.06%TBD1.2%1.09%
Linear Compression Strain to Failure (Characteristic)ASTM D6641/DIN EN 28500.73%0.74%0.75%0.68%

* Typical data based on 5mm thick pultruded profiles


ZOLTEK Corporation Pultruded Profiles Applications