Products

ZOLTEK produces uni-directional (UD) prepreg tapes based on ZOLTEK carbon fiber. ZOLTEK prepreg is ideal for large-volume composite applications where high production throughput, excellent composite properties, and low material cost are important. A wide selection of epoxy resin formulations meet most processing and composite property requirements for tack, toughness, surface finish, cure time, cure temperature, and delivered composite strength and modulus. Custom formulations are also available. ZOLTEK prepreg properties, such as fiber areal weight (FAW), resin content, and width, are readily adjusted to exactly meet customer requirements. Packaging options include core size, customer specified knitting requirements, and custom labeling. ZOLTEK prepreg production is geared to large volumes and low cost. Special projects are welcomed.

Zoltek has developed a new product and sizing chemistry for use in vinyl ester resin systems. Introducing Zoltek’s PX35 Vinyl Ester Compatible Tow product. This new product, based on our proprietary sizing chemistry, exhibits excellent adhesion to and compatibility with vinyl ester resin systems. Most carbon fiber products are used to reinforce epoxy resin systems. Recently, the demand has grown for a product and sizing chemistry that can be used in vinyl ester resins whether cured thermally or via room temperature infusion. When compared to Zoltek’s standard carbon fiber product, PX35 Epoxy Compatible Tow, the new vinyl ester compatible product has significantly higher interlaminar shear strength (ILSS) and transverse flexural strength TFS, which both measure and indicate fiber to resin matrix compatibility and adhesion, as well as, composite performance. Zoltek’s PX35 Vinyl Ester Compatible Continuous Carbon Fiber is manufactured from a polyacrylonitrile (PAN) precursor fiber. The consistency in yield and mechanical properties that are provided by large filament count strands gives the user flexibility to design and manufacture composite materials.

ZOLTEK PX30 Woven Carbon Fabrics tailorability results from controlling the yield on rovings and yarns, and allows for a variety of finished composite thicknesses. The spun yarns have many surface fibrils that protrude in various directions at various lengths from the surface. This fiber loft contributes to high cross-ply tensile and interlaminar shear strengths for 2-D composite materials. Contour conformation without wrinkling is another advantage of spun yarn fabrics. ZOLTEK PX30 materials undergo high temperature carbonization process, involving a long temperature soak time, resulting in a very thermally stable and chemically pure fabric with low oxidation rate.

ZOLTEK PX35 Stitch-Bonded Uni-Directional Carbon Fabrics are produced from our ZOLTEK PX35 50K Continuous Tow Carbon Fiber. Unique fiber spreading techniques are utilized to obtain a wide range of UD fabric weights for a varied set of composite part applications. Quick composite part build-up is cost effectively achieved with our diverse weight range of low-cost carbon fabric products.

ZOLTEK PX35 Tow Weave Carbon Fabrics are produced from our ZOLTEK PX35 50K Continuous Tow Carbon Fiber. Quick composite part build-up is cost effectively achieved with our cosmetically attractive carbon fiber fabrics. Applications include large composite tooling parts and esthetically appealing finished composite components.

ZOLTEK’s PX35 Milled Fibers are specifically processed PAN (polyacrylonitrile) based fibers for lower cost applications. ZOLTEK PX30 High Purity Milled Fibers are 99+% pure carbon fibers derived from ZOLTEK’s high temperature batch graphitization process. All ZOLTEK milled products are free of any sizings. ZOLTEK’s in-house milling system ensures product quality and traceability from raw material through finished product.

ZOLTEK PX35 Stitch-Bonded Uni-Directional Carbon Fabrics are produced from our ZOLTEK PX35 50K Continuous Tow Carbon Fiber. Unique fiber spreading techniques are utilized to obtain a wide range of UD fabric weights for a varied set of composite part applications. Quick composite part build-up is cost effectively achieved with our diverse weight range of low-cost carbon fabric products.

ZOLTEK’s PX35 Flake Type chopped fibers provide ready impregnation of thermoset resins, with the capability to mold complex shapes. The resultant carbon fiber/ resin matrix composites offer high strength-to-weight and stiffness-to-weight ratios. Zoltek PX35 Flake Type chopped fibers may also be used as a low-cost alternative in thermoplastic applications, whereby a small portion of the matrix-specific product can be replaced with chopped flake carbon fibers with negligible impact to composite properties.

ZOLTEK PX30 High-Performance Carbon Yarns are derived from ZOLTEK’s high temperature batch carbonization process; the same process used to manufacture all of ZOLTEK’s high purity ZOLTEK PX30 products. In addition to their high carbon content, the many surface fibrils protruding in various directions from the stretch broken and subsequently carbonized spun ZOLTEK PX30 High-Performance Yarns make them ideally suited for high performance applications including carbon/carbon and other refractory composites. ZOLTEK PX30 High-performance Carbon Yarns have a density of 1.75 g/cc and a minimum carbon content of 99%.

ZOLTEK’s Type-48 chopped fibers provide excellent mechanical and electrical properties for reinforcement in thermoplastic molding compounds requiring high strength and modulus, low density, electrical conductivity, dimensional stability, low thermal expansion and excellent friction/wear properties.

ZOLTEK’s Type-65 chopped fiber format has high bulk density values which allow for cleaner and more consistent flow rates and maintains its integrity from the package, into, and through the hopper and distributes easily during compounding, improving process and product performance and has excellent mechanical and electrical properties.

ZOLTEK PX35 Stitch-Bonded Uni-Directional Carbon Fabrics are produced from our ZOLTEK PX35 50K Continuous Tow Carbon Fiber. Unique fiber spreading techniques are utilized to obtain a wide range of UD fabric weights for a varied set of composite part applications. Quick composite part build-up is cost effectively achieved with our diverse weight range of low-cost carbon fabric products.

Produced from 100% ZOLTEK OX oxidized PAN fibers and later carbonized in our vacuum furnaces, ZOLTEK PX35 carbon felt is widely used. Current applications include insulation in high temperature furnaces, unique properties on our ZOLTEK PX35 carbon felts are invaluable when searching for solutions in complex thermal, corrosive, or conductive applications.

ZOLTEK PX30 Woven Carbon Fabrics tailorability results from controlling the yield on rovings and yarns, and allows for a variety of finished composite thicknesses. The spun yarns have many surface fibrils that protrude in various directions at various lengths from the surface. This fiber loft contributes to high cross-ply tensile and interlaminar shear strengths for 2-D composite materials. Contour conformation without wrinkling is another advantage of spun yarn fabrics. ZOLTEK PX30 materials undergo high temperature carbonization process, involving a long temperature soak time, resulting in a very thermally stable and chemically pure fabric with low oxidation rate.

ZOLTEK PX35 Stitch-Bonded Uni-Directional Carbon Fabrics are produced from our ZOLTEK PX35 50K Continuous Tow Carbon Fiber. Unique fiber spreading techniques are utilized to obtain a wide range of UD fabric weights for a varied set of composite part applications. Quick composite part build-up is cost effectively achieved with our diverse weight range of low-cost carbon fabric products.

ZOLTEK PX30 High-Twist Roving is manufactured with high twist to improve its handling characteristics. The roving is widely used as a baseline material for the manufacture of friction clutches and brakes. Thick fabrics woven of ZOLTEK PX30 High-Twist Roving allow for efficient buildup during fabrication of composite substructures.

ZOLTEK PX30 carbon scrim is a plain leno weave fabric, produced from 100% ZOLTEK OX spun yarns, that undergo a high temperature, long carbonization soak process to obtain a high purity (>99% carbon) mesh material. The resultant chemically inert fabric exhibits superior thermal stability and a low oxidation rate. More specifically, our ZOLTEK PX30 high-purity carbon scrim fabric is a specialized product designed with an open weave construction which is ideal for applications requiring lightweight secondary reinforcement, such as that used in intumescent coating end uses. The scrim fabrics is usually supplied with an FR coated finish to provide easy handling and installation. In addition, our ZOLTEK PX30 High-Purity Carbon Scrim Fabric is manufactured to the same high quality and high standards as all of the ZOLTEK PX30 woven products.

ZOLTEK PX35 continuous carbon fiber is manufactured from polyacrylonitrile (PAN) precursor. The consistency in yield and mechanical properties that are provided by large filament count strands gives the user the ability to design and manufacture composite materials with greater confidence and allows for efficient and fast buildup of carbon fiber reinforced composite structures. ZOLTEK PX35 50K fibers are available with a variety of sizing formats for different composite processing methods and for compatibility with a wide range of standard resin systems. ZOLTEK quality focuses on spool to spool consistency yielding low coefficients of variation.

ZOLTEK PX35 Tow Weave Carbon Fabrics are produced from our ZOLTEK PX35 50K Continuous Tow Carbon Fiber. Quick composite part build-up is cost effectively achieved with our cosmetically attractive carbon fiber fabrics. Applications include large composite tooling parts and esthetically appealing finished composite components.

ZOLTEK’s Type-45 chopped fiber is high bulk density values which allow for cleaner and more consistent flow rates, maintains its integrity from the package, into, and through the hopper and distributes easily during compounding, improving process and product performance and has excellent mechanical and electrical properties.

ZOLTEK’s PX35 Milled Fibers are specifically processed PAN (polyacrylonitrile) based fibers for lower cost applications. ZOLTEK PX30 High Purity Milled Fibers are 99+% pure carbon fibers derived from ZOLTEK’s high temperature batch graphitization process. All ZOLTEK milled products are free of any sizings. ZOLTEK’s in-house milling system ensures product quality and traceability from raw material through finished product.

ZOLTEK’s Type-83 chopped fiber format has high bulk density values which allow for cleaner and more consistent flow rates, compact pellet form maintains its integrity from the package, into, and through the hopper and distributes easily during compounding, improving process and product performance and has excellent mechanical and electrical properties.

ZOLTEK’s Type-52 chopped fiber format has stiff chopped strands which allows for clean and consistent flow rates, maintains its integrity from the package, into, and through the hopper and distributes easily during compounding, improving process and product performance and has excellent mechanical and electrical properties.

ZOLTEK™ PX35 pultrusion is 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 lowcost, 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.

ZOLTEK PX35 Stitch-Bonded Uni-Directional Carbon Fabrics are produced from our ZOLTEK PX35 50K Continuous Tow Carbon Fiber. Unique fiber spreading techniques are utilized to obtain a wide range of UD fabric weights for a varied set of composite part applications. Quick composite part build-up is cost effectively achieved with our diverse weight range of low-cost carbon fabric products.

ZOLTEK PX35 Stitch-Bonded Uni-Directional Carbon Fabrics are produced from our ZOLTEK PX35 50K Continuous Tow Carbon Fiber. Unique fiber spreading techniques are utilized to obtain a wide range of UD fabric weights for a varied set of composite part applications. Quick composite part build-up is cost effectively achieved with our diverse weight range of low-cost carbon fabric products.

ZOLTEK PX30 Low-Oxidation Knitted Carbon Fabric is high modulus fiber fabric made from spun yarn. The fabric has a jersey knit construction, which will conform to multiple curvatures. Thermal oxidative and dimensional stabilities are attained during heat treatment. Applications of ZOLTEK PX30 Knitted Fabric include thermal protection systems, such as, heat shields, rocket nozzles, and carbon/carbon brakes.

Pultrusion is a cost-effective, continuous process for producing fiber-reinforced composite parts. ZOLTEK PX35 carbon fiber tows are fed into our proprietary impregnation and curing process which creates engineered carbon fiber profiles. These profiles enable rapid section buildup when laminating thick parts such as wind blade spar caps. High fiber alignment achieved with pultrusion delivers consistently superior properties in laminates compared to any other composite manufacturing processes.

ZOLTEK’s Type-45 Recycled Chopped Fiber format has high strength and modulus, low density, electrical conductivity, dimensional stability and low thermal expansion.

ZOLTEK PX35 Multi-Axial Fabric is produced from our ZOLTEK PX35 continuous carbon fiber tow. Unique fiber spreading techniques are utilized to obtain a wide range of MD fabric weights for a varied set of composite part applications. Quick composite part build-up is cost effectively achieved with our diverse weight range of low-cost carbon fiber products. Drapable fabric construction, ideal for complex shape preforms. Pillar and Tricot stitching patterns available.

ZOLTEK PX35 Stitch-Bonded Uni-Directional Carbon Fabrics are produced from our ZOLTEK PX35 50K Continuous Tow Carbon Fiber. Unique fiber spreading techniques are utilized to obtain a wide range of UD fabric weights for a varied set of composite part applications. Quick composite part build-up is cost effectively achieved with our diverse weight range of low-cost carbon fabric products.

ZOLTEK’s Type-65 Recycled Chopped Fiber format has high strength and modulus, low density, electrical conductivity, dimensional stability, low thermal expansion.

ZOLTEK PX30 Woven Carbon Fabrics tailorability results from controlling the yield on rovings and yarns, and allows for a variety of finished composite thicknesses. The spun yarns have many surface fibrils that protrude in various directions at various lengths from the surface. This fiber loft contributes to high cross-ply tensile and interlaminar shear strengths for 2-D composite materials. Contour conformation without wrinkling is another advantage of spun yarn fabrics. ZOLTEK PX30 materials undergo high temperature carbonization process, involving a long temperature soak time, resulting in a very thermally stable and chemically pure fabric with low oxidation rate.

ZOLTEK’s PX35 unsized chopped fibers provide distribution of individual filaments for applications requiring full filament bundle dispersion.

ZOLTEK™ PX35 pultrusion is 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 lowcost, 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.

ZOLTEK PXFT carbonized felts are produced from 100% ZOLTEK OX felts, being continuously carbonized and supplied in roll form. ZOLTEK PXFT carbonized felts can be used in many applications, including: stationary energy storage batteries, fire protective insulation, high temperature furnace linings, acid gas mist eliminators and in carbon composite materials. Customers can apply their own post treatments and the carbonized felt is easy to cut and process for specific enduse applications.