Unifrax
Unifrax (operating as Alkegen) is a global specialty materials manufacturer serving industrial, construction, energy, transportation, metals, and mining customers with fiber-based high-temperature insulation, filtration, battery thermal management, fire protection, and sealing products across more than 60 manufacturing facilities worldwide.
- Company typePrivate
- Founded1891
- HeadquartersBuffalo, United States
- Headcount5,001–10,000
- GTM typeB2B
- OfferingHardware or Manufacturing
What Unifrax does
Unifrax, operating commercially as Alkegen following its combination with Lydall, is a specialty materials manufacturer serving industrial, construction, energy, transportation, metals, mining, and medical end markets. Its product portfolio is organized into five pillars: Insulation & Thermal Management (Excelfrax, Insulfrax, Saffil, Thermfrax, Thermbond, RapidFire, and aerogel-based AlkeGel), Filtration & Catalysis (Lydair GP, LyPore MB, TriboStatiX, Purefrax, Filter Bags, and a No PFAS Added line), Battery & Mobility (SiFAB silicon fiber anode, Inovion in-cell, FyreWrap LiB, AlkeGel in-pack), Fire Protection & Construction Materials (FyreWrap DPS, Elite, Marine), and Sealing & Gasket Solutions (Interface Performance Materials, MicroPore, Millboard, Pro-Formance, Select-A-Seal). The technology platform is fiber-based, spanning ceramic fiber, polycrystalline wool, aerogel, and silicon fiber formulations developed over decades of materials R&D and consolidated through the Lydall merger.
The company generates revenue through B2B direct industrial sales of physical materials products, priced via quote-based contracts rather than transparent public pricing. It operates more than 60 manufacturing facilities globally with over 9,000 employees, enabling localized service for multinational customers and supporting an estimated 15% global share in microporous insulation. Go-to-market is executed through industry-specific landing pages, technical documentation, engineering tools (Heat Flow calculator, Alkegen Mobile App), and a direct sales force targeting enterprise buyers across construction, energy storage, oil & gas, petrochemical, power generation, aerospace, automotive, marine, rail, iron & steel, aluminum, cement, mining, and medical sectors.
Unifrax/Alkegen has pursued an active inorganic growth posture, acquiring Stellar Materials (2019), Rex Materials Group (2020), and Lydall (2021, approximately $1.3 billion) to expand product breadth and global scale. Most recently the company has publicly announced a financial restructuring to strengthen its capital structure while continuing to serve its global customer base, signaling balance sheet pressure that is occurring in parallel with continued investment in the EV battery materials and energy storage adjacency.
Unifrax firmographics
Firmographics- Name
- Unifrax
- Website
- https://unifrax.com
- Company type
- Private
- Founded year
- 1891
- Operating status
- Operating
- Headcount range
- 5,001–10,000 employees
- Short description
- Unifrax (operating as Alkegen) is a global specialty materials manufacturer serving industrial, construction, energy, transportation, metals, and mining customers with fiber-based high-temperature insulation, filtration, battery thermal management, fire protection, and sealing products across more than 60 manufacturing facilities worldwide.
- Ownership category
- akta.pro rank
Unifrax industry classification
Industry- Product category
- Industrial Insulation Materials
- NAICS
- Electrical Equipment Manufacturing (3353)
- SIC
- Plastics Foam Products (3086)
- akta.pro primary industry
- Aerospace Thermal Management, Insulation & Fire Protection Materials (IMABANAE)
- akta.pro secondary industries
- Thermal & Acoustic Insulation Textiles (Insulation Felts/Soundproofing) (IMAOADAL), Fireproofing & Intumescent Coatings (IMAIAKAH)
Keywords
Where Unifrax is headquartered
LocationHeadquarters
- HQ city
- Buffalo
- HQ country
- United States
- HQ region
- North America
Offices1 record
Markets served
Unifrax business model
Business model- GTM type
- B2B
- Offering type
- Hardware or Manufacturing
- Cost components
- Supply Chain, Operations, Personnel, Technology or R&D, Infrastructure, Marketing or Sales
Revenue model
- Insulation Products: High-temperature thermal management products including ceramic fiber insulation, aerogel insulation, and refractory insulation for industrial applications
- Filtration Products: Specialty filtration and catalysis products including air, liquid, and industrial filtration media, filter bags, and molecular filtration
- Battery Technology Products: Advanced materials for thermal barriers, electrical protection, battery separator technology, and silicon fiber anode materials for EVs and consumer electronics
- Fire Protection Products: Fire protection insulation products for industrial and commercial construction applications
- Sealing Solutions: High-performance sealing materials for automotive, industrial, and specialty applications
Go-to-market motion1 record
Distribution channels1 record
Marketing channels4 records
Unifrax product offering
Product offeringCore offering
Unifrax develops, manufactures, and sells high-temperature insulation products along with filtration media, fire protection materials, battery materials for electric vehicles and energy storage, and sealing solutions. Its products are engineered for industrial customers across EV, energy storage, aerospace, automotive, and industrial filtration applications.
Product overview
Alkegen is a specialty materials platform company that unified Unifrax and Lydall to offer a comprehensive portfolio of high-performance materials organized into five core business areas: Insulation & Thermal Management (including Excelfrax, Insulfrax, Saffil, Thermfrax, Thermbond, RapidFire, and aerogel-based AlkeGel products), Filtration & Catalysis (including Lydair GP, LyPore MB, TriboStatiX, Purefrax, and Filter Bags), Battery & Mobility (including Inovion, SiFAB silicon anode material, FyreWrap LiB, and AlkeGel for battery thermal management), Fire Protection & Construction Materials (including FyreWrap DPS, FyreWrap Elite, and FyreWrap Marine), and Sealing & Gasket Solutions (under the Interface Performance Materials brand including MicroPore, Millboard, Pro-Formance, and Select-A-Seal). The company operates over 60 manufacturing facilities worldwide with 9,000-plus employees, serving industries including aerospace, automotive, construction, energy storage, industrial manufacturing, metals, mining, and petrochemical.
Differentiator
Problem solved
Functional benefit
Products and services
- High-temperature insulation products Engineered high-temperature insulation materials, including microporous insulation, designed for industrial thermal management applications.
- Filtration media Engineered filtration media sold for industrial filtration applications.
- Battery materials Specialty battery materials supplied to electric vehicle and energy storage manufacturers.
- Fire protection products Engineered fire protection materials used in industrial fire safety applications.
- Sealing solutions Engineered sealing solutions for industrial customers.
Companies that use Unifrax
Customer profileSegments7 records
Ideal customer profiles1 record
Unifrax technology and API
TechnologyTechnology focussed Yes
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature7 records
Unifrax partnerships and signals
Strategic signalPartnerships
One partnership is on record.
- LydallcoreUnifrax and Lydall merged to form Alkegen, combining their expertise in specialty materials. Unifrax brought high-temperature insulation and filtration capabilities while Lydall added filtration media and sealing solutions. The merger created a global leader in high-performance specialty materials with expanded product portfolio and manufacturing footprint.
Scale indicators3 records
Recent moves6 records
Expansion highlights5 records
Unifrax competitors and assessment
Company assessmentBroad incumbents
- Owens Corning: Public US building materials leader producing insulation, roofing, and composite solutions — broader incumbent with overlapping building insulation and industrial composite offerings.
- 3M: Diversified global materials and industrial conglomerate with significant insulation, filtration, and specialty materials businesses — broader incumbent with comparable product categories though not focused on high-temp industrial insulation.
- Johns Manville: Berkshire Hathaway-owned manufacturer of insulation, roofing, and engineered products — overlapping with Alkegen's building envelope, HVAC, and industrial insulation product lines.
- Parker Hannifin: Large diversified industrial manufacturer with filtration, sealing, and engineered materials divisions serving aerospace, automotive, and industrial markets — overlapping with Alkegen's Interface Performance Materials sealing and filtration businesses.
- Cabot Corporation: Global specialty chemicals and performance materials company with battery materials (carbon additives for Li-ion) and reinforcement materials — overlapping with Alkegen's SiFAB battery anode and specialty materials businesses.
Direct peers
- Morgan Advanced Materials: UK-listed specialty materials company producing high-temperature insulation, ceramics, and engineered components for industrial, aerospace, and energy applications — directly comparable to Unifrax's core high-temp insulation and refractory product lines.
- Donaldson Company: Public US filtration company producing industrial air, liquid, and gas filtration products including high-temperature filter bags — directly comparable to Alkegen's Purefrax and industrial filtration media product lines.
- Pyrotek: Privately held global manufacturer of high-temperature materials, filtration, and engineered solutions for aluminum, steel, glass, and foundry industries — closely comparable to Unifrax's Saffil and high-temperature insulation serving metals and industrial customers.
- Ibiden: Japanese specialty materials manufacturer with significant high-temperature ceramics and insulation businesses serving electronics, automotive, and industrial markets — comparable in technical fiber-based materials and refractory product portfolio.
- Hollingsworth & Vose: Privately held global manufacturer of specialty filtration media, battery separator materials, and industrial nonwovens — directly comparable to Lydall-originated filtration and battery products within Alkegen.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat5 records
Key risks5 records
Key highlights6 records
Customer concentration
Unifrax social profiles
Digital presenceUnifrax financial estimates
Financial estimateRevenue estimate
Valuation estimate
Unifrax leadership team
Management profileNumber of profiles
Profiles2 records
Unifrax funding detail
Funding detailFunding overview
Funding rounds4 records
Investors3 records
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Unifrax M&A and investment
M&A and investmentM&A4 records
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about Unifrax
What does Unifrax do?
Unifrax develops, manufactures, and sells high-temperature insulation products along with filtration media, fire protection materials, battery materials for electric vehicles and energy storage, and sealing solutions. Its products are engineered for industrial customers across EV, energy storage, aerospace, automotive, and industrial filtration applications.
Is Unifrax a public or private company?
Unifrax is a private company. It is classified as private equity controlled and is currently operating.
When was Unifrax founded?
Unifrax was founded in 1891. It employs 5,001 to 10,000 people.
Where is Unifrax based?
Unifrax is headquartered in Buffalo, United States, in the North America region.
How does Unifrax make money?
Five revenue lines are on record. Insulation Products are the primary driver. The others are filtration Products, battery Technology Products, fire Protection Products and sealing Solutions.
Who are Unifrax's main competitors?
Broad incumbents on record are Owens Corning, 3M, Johns Manville, Parker Hannifin and Cabot Corporation. Direct peers are Morgan Advanced Materials, Donaldson Company, Pyrotek, Ibiden and Hollingsworth & Vose.
Does Unifrax have an API?
No public API is recorded for Unifrax.
What industry is Unifrax in?
Unifrax's product category is Industrial Insulation Materials. Its primary akta.pro industry code is IMABANAE, Aerospace Thermal Management, Insulation & Fire Protection Materials, with a secondary code of IMAOADAL, Thermal & Acoustic Insulation Textiles (Insulation Felts/Soundproofing). Its NAICS code is 3353 and its SIC code is 3086.