Liberty Pultrusions

What Liberty Pultrusions does

Liberty Pultrusions is a US-based, privately held manufacturer of engineered Fiber-Reinforced Polymer (FRP) pultrusion products, headquartered and operating from a single manufacturing facility in West Mifflin, Pennsylvania. The company traces its heritage to the 1964 Westinghouse Corporation pultrusion division and has been producing FRP profiles continuously for over 50 years. It manufactures both custom-engineered pultruded profiles and standard structural shapes — rods, channels, angles, tubes, beams, flat sheets, bars, and plates — across multiple resin systems including polyester, vinyl ester, and polyurethane, sold under the Polyglas, UltraGrate, and UltraStud sub-brands. Value-added services include CNC precision machining and full structural fiberglass fabrication for finished systems such as stair/handrail assemblies, platforms, and wastewater containment.

The underlying pultrusion process pulls continuous fiberglass rovings and mats through a liquid resin bath (wet-out) and then through a heated die, where the resin polymerizes and the composite hardens into a continuous, rigid, structurally reinforced profile that is cut to length. Liberty supplements this with compression molding capability (added in 2021) and stocks more than 339 inventory line items plus 40+ standard electrical shapes for immediate shipment. Products are certified to NEMA GPO-3, UL 94V-0 (UL-File E-55403), ASTM E-84 Class I, and USDA-formulated resin standards, and are used by customers in industrial/infrastructure, electrical utility, telecommunications, marine, food processing, transit, and consumer/sporting goods applications.

The business model is sales-led and quote-based: prospective customers request pricing via phone, email, or an online RFQ form, and a 7% oil/resin volatility surcharge plus a 2.5% credit card surcharge are applied to invoices. Revenue is generated from hardware sales of both stocked standard products and custom-manufactured-to-order profiles, with a West Coast sales office supplementing the Pennsylvania headquarters. The company expanded its portfolio through the November 2019 acquisition of Glasrail and continues to introduce new products such as ThermoStrong (2019) and polyurethane pultrusion technology (2021).

Name

Liberty Pultrusions

Legal name

Liberty Pultrusions

Website

https://libertypultrusions.com

Company type

Private

Founded year

1964

Operating status

Operating

Headcount range

11–50 employees

Short description

Liberty Pultrusions is a US-based, privately held FRP pultrusion manufacturer in West Mifflin, PA, producing custom and standard fiber-reinforced polymer structural shapes, electrical shapes, grating, and threaded rods for industrial, electrical utility, telecom, marine, and consumer applications.

Ownership category

akta.pro rank

Product category

FRP Pultrusion Manufacturing

NAICS

Plastics Pipe, Pipe Fitting, and Unlaminated Profile Shape Manufacturing (32612)

SIC

Miscellaneous Plastics Products (3080)

akta.pro primary industry

FRP/GRP & Composite Materials (Resins, Fibers, Core Materials) (IMAJAKAC)

Keywords

• Fiber reinforced polymers
• FRP pultrusion manufacturing
• Structural fiberglass profiles
• Fiberglass grating products
• Custom composite shapes

Headquarters

HQ city

West Mifflin

HQ country

United States

HQ region

North America

Offices2 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Supply Chain, Operations, Personnel, Infrastructure, Technology or R&D, Marketing or Sales

Revenue model

1. FRP Pultrusion Products — Standard & Custom: Liberty Pultrusions generates revenue through the manufacture and sale of standard and custom-engineered Fiber Reinforced Polymer (FRP) pultrusion products. Standard products include structural shapes (rods, channels, angles, tubes, beams, bars, plates, flat sheets), fiberglass grating (pultruded and molded), electrical shapes, and threaded rods/nuts. Custom pultrusions are designed and manufactured to meet specific customer requirements in various resin systems, fiberglass matrices, and colors. The company also offers precision machined parts and structural fiberglass fabrication as value-added services. Revenue is generated through direct sales of products, with pricing based on product specifications, quantities, and resin systems.

Pricing tiers

Go-to-market motion1 record

Distribution channels3 records

Marketing channels4 records

Core offering

Liberty Pultrusions designs and manufactures fiber-reinforced polymer (FRP) pultrusion products — continuous lengths of fiberglass-reinforced structural shapes, rods, tubes, channels, angles, beams, plates, electrical shapes, and fiberglass grating. The company offers both standard stocked profiles (339 inventory line items) and custom-engineered pultrusions in polyester, vinyl ester, and polyurethane resin systems, and complements manufacturing with precision machining and structural fiberglass fabrication services.

Product overview

Liberty Pultrusions is a U.S.-based manufacturer of engineered Fiber-Reinforced Polymer (FRP) pultrusions with over 50 years of industry experience. The company operates a single unified manufacturing platform centered on the pultrusion process, producing custom and standard structural pultrusions, electrical shapes, and fiberglass grating products. The product portfolio includes: Custom Pultrusions (engineered profiles to customer specs) and Structural Pultrusions (standard profiles including rods, channels, flat sheets, angles, tubing, beams, plates, and bars) as core structural offerings; Polyurethane Pultrusions for high-stiffness applications; Fiberglass Electrical Shapes meeting NEMA GPO-3 specifications for power distribution; and Fiberglass Grating products including UltraGrate Pultruded and Molded variants, stair treads, and accessories. Value-added services include Precision Machined Parts and Structural Fiberglass Fabrication for finished system assembly. The company also produces UltraStud threaded rod and nut fastening systems. Products are manufactured in Pittsburgh, PA with distribution through East Coast and West Coast locations.

Differentiator

Problem solved

Functional benefit

Brands

• Polyglas: Brand name for structural pultrusions including Polyglas F (fire retardant polyester), Polyglas C (fire retardant vinyl ester), and Polyglas M (non-fire retardant polyester).
• UltraGrate
• UltraStud

Products and services

• Custom Pultrusions Custom-engineered pultruded FRP profiles manufactured to customer specifications with various resin systems (polyester, vinyl ester, polyurethane), fiberglass reinforcements, shapes, and colors.
• Structural Pultrusions Standard structural fiberglass reinforced plastic profiles including rods, channels, flat sheets, angles, tubing, beams, plates, and bars offered in three Polyglas systems (F, C, M) with different resin configurations.
• Pultruded Fiberglass Rods (FRP Rods) Solid fiberglass rod in various shapes (round, square, trapezoid, dogbone, rectangular) and grades (Polyglas Polyester, Supersil, EHS, FR, TR, C) for transformer insulation, sporting goods, and industrial applications.
• Fiberglass Electrical Shapes Pultruded fiberglass profiles meeting or exceeding NEMA GPO-3 specifications, flame retardant (UL 94V-0), arc-resistant, and track resistant. Includes angles, channels, flanged channels, square tubes, and terminal board shapes.
• Polyurethane Pultrusions Custom pultrusions using polyurethane resin technology that is 40% stiffer than polyester, allowing reduced profile thickness by 25% while maintaining stiffness, with no VOC emissions.
• UltraGrate Pultruded Fiberglass Grating (UPFG) High-strength pultruded fiberglass grating with high fiberglass content, I-bar and T-bar styles. Features strength, rigidity, high load capacity, corrosion resistance, and ADA compliance for walkways and vehicle traffic trenches.
• UltraGrate Molded Fiberglass Grating Hand lay-up composite grating of resin and continuous glass fiber strand with good strength and corrosion resistance, serving as an alternative to metal grating for corrosive environments.
• UltraStud Fiberglass Threaded Rods and Nuts Fiberglass reinforced vinyl ester all-thread rod and FRP fastener system with corrosion resistance and electrical insulation, including FRP square nuts and molded flanged hex nuts for corrosive environments.
• Precision Machined Parts CNC and conventionally machined parts from fiberglass pultrusions and plastic sheets including high-pressure laminates, glass polyester sheets, UHMW, HDPE, and other thermoplastic/thermoset products.
• Structural Fiberglass Fabrication Engineering, design, and fabrication of finished structural fiberglass systems including stair/handrail systems, industrial platforms, marine structures, baffle walls, and wastewater containment systems.
• ThermoStrong Product Industrial-strength FRP pultrusion product launched in December 2019 for industrial and manufacturing applications.

Quantifiable outcome

• FRP pultrusions are 75% lighter than steel while providing equal or greater strength on a pound-for-pound basis
• +7 more outcomes

Segments5 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature7 records

Partnerships

One partnership is on record.

• GlasrailminorStrategic or Co-development Partner · 18 November 2019Liberty Pultrusions acquired Glasrail in November 2019. Glasrail was a manufacturer of FRP structural products, and the acquisition expanded Liberty Pultrusions' product portfolio and manufacturing capabilities in the FRP structural market.

Scale indicators4 records

Recent moves5 records

Expansion highlights6 records

Broad incumbents

• Jushi Group: Jushi Group is the world's largest producer of glass fiber reinforcements (rovings, mats, chopped strands) used in pultrusion and other composite processes. It is a key upstream supplier into the pultrusion industry and a broad incumbent in the composites supply chain relevant to Liberty.
• Owens Corning: Owens Corning is a global fiberglass and composites supplier providing reinforcements, rovings, and mats used as inputs into pultrusion. As both a key supplier of raw materials to the pultrusion industry and producer of finished composite products in adjacent categories, it is a broad incumbent comparator.
• Fiber Glass Systems (NOV): Fiber Glass Systems, part of NOV (National Oilwell Varco), manufactures FRP pipe, downhole tools, and composite products for oil & gas and industrial markets. It serves many of the same downstream industrial use cases (corrosion-resistant fluid handling, structural supports) where Liberty supplies pultruded profiles.
• PPG Industries (Fiberglass / Composites): PPG supplies fiberglass reinforcements and coatings/resins used in pultrusion applications through its composites and coatings businesses. As a major raw materials and coatings supplier serving pultruders, it operates in the same broader composites value chain as Liberty.
• Polynt Composites (Polynt-Reichhold): Polynt-Reichhold is one of the largest global producers of polyester, vinyl ester, and specialty resins used in FRP and pultrusion applications. As the dominant upstream resin supplier, it shapes the input cost structure and technology roadmap for pultruders like Liberty.

Direct peers

• Bedford Reinforced Plastics: Bedford Reinforced Plastics (formerly including Creative Pultrusions) is a Pennsylvania-based FRP pultrusion manufacturer offering structural shapes, grating, and custom pultruded profiles. It competes with Liberty across the same product families including structural shapes, electrical NEMA-rated profiles, and fiberglass grating.
• Strongwell Corporation: Strongwell is the largest US pultrusion manufacturer producing FRP structural shapes, grating, and electrical/utility products from Bristol, VA. It is the most direct head-to-head competitor to Liberty Pultrusions across structural profiles, grating, and custom pultruded shapes serving the same industrial, electrical, and infrastructure customers.
• Enduro Composites: Enduro Composites is a US-based FRP pultrusion manufacturer producing structural shapes, grating, and threaded rod/fastener systems for industrial markets. It competes with Liberty Pultrusions in structural shapes, grating, and corrosion-resistant applications across oil & gas, wastewater, and infrastructure.
• Exel Composites: Exel Composites is a global pultrusion manufacturer producing FRP profiles and custom composite solutions for industrial, infrastructure, and electrical applications. It is a like-for-like competitor on pultrusion technology and product range, though operating at a much larger global scale than Liberty.
• TenCate Advanced Composites (now Toray Advanced Composites): TenCate (now part of Toray Advanced Composites) supplies thermoset and thermoplastic composite materials including pultrusion-grade resins and reinforcement systems. It is a competitor/adjacent supplier in the composite materials and pultrusion input value chain relevant to Liberty's polyurethane and polyester resin systems.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks5 records

Key highlights7 records

Customer concentration

• Xx.com/pultrusion

Compliance6 records

Revenue estimate

Valuation estimate

Number of profiles

Subsidiaries1 record

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Liberty Pultrusions