Zoltek Corporation

3101 McKelvey Rd.
Bridgeton, MO 63044 US


Zoltek's mission is to lead the commercialization of carbon fiber and to drive industries forward through stable pricing, supply availability, and advanced technology. Today Zoltek products are lifting industries to higher of levels of performance.

As Seen In CompositesWorld

split tow carbon fiber

Split tow carbon fiber boosts SMC performance
Pre-spread, pre-scored tow band provides better fiber dispersion, wetout, molding properties.

JEC World composites show

JEC World 2019 Preview
The JEC World trade show and conference, the largest composites event in the world, will be held at the Paris Nord Villepinte Exhibition Center, March 12-14, 2019.

wind energy

The markets: Renewable energy (2019)
The global market for wind turbine composite materials could reach a market value of more than 12 billion by 2023 and is expected to grow at CAGR around 9.6% from now to 2023.

carbon fiber unidirectional tape, automotive

The markets: Automotive (2019)
As the global auto industry hurtles toward its confrontation with US fuel economy and European Union (EU) emissions standards in 2017, the pressure built to find more radical solutions to lightweighting.


Overcoming barriers to adoption of structural autocomposites
Although much attention has been focused on material costs and development of high-rate, automated manufacturing processes for structural autocomposites, production of viable products depends on the ability to design and simulate the structures for these exciting new FRP applications. 

Carbon Fiber SMC

Webinar: Utilizing Large Tow Textile Based Carbon Fiber for Sheet Moulding Compound
CompositesWorld is presenting a free Zoltek-sponsored webinar on Tuesday Sept. 18, at 2:00 pm EDT on carbon fiber sheet molding compound.

CFRP subframe

Teaming to define what automotive CFRP could be
Ford and Magna explore a high-volume chassis front subframe build from co-molded chopped fiber and noncrimp fabric SMC.

How is tow spread?
ITA characterizes tow spreading processes and parameters as it develops new technology to speed production (100 m/min) and reduce width variation (<1mm).

High-volume autocomposites

Rear wall reboot: One-stop, tow to tape to CFRP part
Audi and Voith Composites iterate the CFRP rear wall from R8 sports car to A8 luxury sedan via an automated production line able to output hundreds of parts per day.

spread tow applications, carbon fiber tows

The spread of spread tow
Advancing from “lighter and thinner” to boosting strength, stiffness, impact resistance and productivity, spread tow unlocks new applications and markets.

Uniti electric car

Zoltek to provide carbon fiber for Uniti electric cars
The two companies have signed a partnership agreement in which Zoltek will be the preferred supplier of carbon fiber for Uniti’s line of electric cars.

Zoltek expands carbon fiber operations at Hungarian facility
Zoltek will increase the plant’s production capacity by 50% to 15,000 tons produced annually.

Wind blade spar caps: Pultruded to perfection?
Introduced to the market about five years ago, pultruded, carbon fiber-reinforced spar caps, incorporated as the reinforcing member of wind turbine rotor blades, are a byproduct of the evolution and increasing technological sophistication of the global wind energy industry.

voith roving applicator

Voith unveils digital carbon fiber manufacturing line
Patented production line used to produce the carbon fiber reinforced plastic rear panel for the new Audi A8.

Voith Composites automated composites production for Audi A8 rear wall

Automation, automotive, recycling and more 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.

 Laura Littlejohn, a scientist at Ashland LLC

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

Product Categories of Zoltek Corporation

Automated fiber placement machines
Carbon, 8-harness
Carbon, Chopped strand
Carbon, Milled fibers
Carbon, Multiaxial
Carbon, Other
Carbon, Other
Carbon, PAN-based
Carbon, Plain-weave
Carbon, Roving, gun
Carbon, Stitched (knitted, nonwoven)
Carbon, Twill
Carbon, Woven roving
Carbon, Yarns
Conductive fillers
Epoxy, 12-inch tape
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, 60-inch tape
Epoxy, Fabric
Epoxy, Roving
Epoxy, toughened, 12-inch tape
Epoxy, toughened, 60-inch tape
Epoxy, toughened, Fabric
Epoxy, toughened, Mat
Epoxy, toughened, Roving
Filament winding machines and software controls
Impregnation lines
Other organic fibers
Other, Chopped strand
Other, Mat, chopped strand
Pultrusion equipment, thermoplastics
Pultrusion equipment, thermosets