Zoltek Corporation

ZOLTEK product lines include the PX35 and PX30 carbon fibers and the OX line of oxidized fiber. These products are ideal for reinforcement, electrical conductivity, fire resistance, friction and carbon/carbon applications. Available in a variety of product forms.

3101 McKelvey Rd.
Bridgeton, MO 63044 US

Additional Locations:
Hungary H-2537
Nyergesujfalu, HU
+36 33 536 021


A Message from Zoltek Corporation

As Seen In CompositesWorld

voith roving applicator

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More highlights from JEC World 2018
Mass production of automotive composites, recycling and composites in shipbuilding are just some of the themes from this year’s JEC.

Uniti electric car

Zoltek fiber in new electric car
Zoltek Corporation (St. Louis, MO, US), a producer of low-cost industrial grade carbon fiber, has its PX35 carbon fiber featured on the new Uniti electric car currently making waves in Sweden.

Webinar: Low-cost carbon fiber composites for automotive
CompositesWorld is presenting a free Zoltek-sponsored webinar on Sept. 27 at 2:00 p.m. EDT titled, “How to Produce Affordable Carbon Fiber Automotive Parts.”

Toray resin compound base to locate at Zoltek Hungary
Zoltek Companies, Inc. (St. Louis, MO, US), a producer of low cost industrial grade carbon fiber, will house the newest Toray operation, a PPS resin compound production facility, on the Zoltek property in Nyergesújfalu, Hungary. 

SMC in transportation

SMC: Old dog, more tricks
In the sheet molding compound renaissance, the advent of new resins and compounds are broadening the definition and application of this versatile family of composites.

IACMI launches new project to optimize resins and sizings for vinyl ester/carbon fiber
The project will develop vinyl ester resin/fiber sizing/carbon fiber combinations that are styrene-free and that have room temperature storage capability of at least three months and cure times less than three minutes.

SMC: Old dog, new tricks
A sheet molding compound renaissance highlights new reinforcements, new fillers, new matrices, new opportunities.

Zoltek to expand carbon fiber production in Mexico
This expansion project, together with existing carbon fiber capacity at the Hungary facility, will grow Zoltek’s total global capacity to more than 20,000 tons per year.

OOA composites in next-generation launch systems
As United Launch Alliance ULA replaces Atlas and Delta with next-generation launch rockets under the Vulcan name, supplier Ruag Space has been selected to provide lower cost/improved quality out-of-autoclave fabrication of Vulcan’s composite primary structures. Ruag will manufacture 5.4m payload fairings and 400-series interstage adapters for ULA’s Atlas V rocket.

Composites in Class A body panels: Evolution continues
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CAMX 2016 preview: Zoltek
Zoltek (St. Louis, MO, US) a manufacturer of industrial-grade carbon fiber, will highlight its PX35 product line, a low-cost industrial grade carbon fiber in various product forms, including tow, chopped, milled and pultruded plate.

Zoltek names new CEO
Effective May 18, 2016, Yoshihiro Takeuchi took over as president, COO and CEO of Zoltek Companies.

Aerospace growth climbs with carbon fiber
The business case for carbon fiber in narrowbodies has become a lot stronger now that these operational benefits are in evidence.

Carbon/epoxy Cadillac hood
Automated process for prepreg hood inner/outer cuts weight by 20% and yields Class A exterior out of the autoclave.

The composites super cycle — are we still living the dream?
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Fiber reinforcement forms (2017)
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Supply and demand: Advanced fibers (2017)
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“Give us affordable carbon fiber!”
Guest columnist Dan Pichler, managing director of CarbConsult GmbH, suggests that the we need a sustained, cooperative effort in the carbon fiber supply chain. Partnering is the key.

Alternative precursor R&D: Lignin in the lightweighting limelight
This abundant, renewable resource shows promise as an alternative to PAN for low-cost, functional carbon fibers.

Product Categories of Zoltek Corporation

  • Fibers, organic
    • Carbon, PAN-based
    • Other organic fibers
  • Reinforcements, unimpregnated
    • Carbon
      • Carbon, Chopped strand
      • Carbon, Milled fibers
      • Carbon, Roving, gun
      • Carbon, Yarns
      • Carbon, Other
    • Other unimpregnated reinforcement forms
      • Other, Chopped strand
      • Other, Mat, chopped strand
  • Fabrics, unimpregnated
    • Carbon
      • Carbon, 8-harness
      • Carbon, Multiaxial
      • Carbon, Plain-weave
      • Carbon, Stitched (knitted, nonwoven)
      • Carbon, Twill
      • Carbon, Woven roving
      • Carbon, Other
  • Preforms, unimpregnated
    • Carbon
  • Prepregs, thermoset
    • Epoxy
      • Epoxy, 12-inch tape
      • Epoxy, 60-inch tape
      • Epoxy, Fabric
      • Epoxy, Roving
    • Epoxy, 250 F cure
      • Epoxy, 250 F cure, 12-inch tape
      • Epoxy, 250 F cure, 60-inch tape
      • Epoxy, 250 F cure, Fabric
      • Epoxy, 250 F cure, Roving
    • Epoxy, toughened
      • Epoxy, toughened, 12-inch tape
      • Epoxy, toughened, 60-inch tape
      • Epoxy, toughened, Fabric
      • Epoxy, toughened, Mat
      • Epoxy, toughened, Roving
  • Resin additives & modifiers
    • Conductive fillers
Primary manufacturing equipment
  • Automated fiber placement machines
  • Filament winding machines and software controls
  • Impregnation lines
  • Pultrusion equipment, thermoplastics
  • Pultrusion equipment, thermosets