What Stellar Materials, LLC does

Stellar Materials, LLC, operating under the Thermbond brand, is a U.S.-based specialty refractory manufacturer founded in 1990 and headquartered in Boca Raton, Florida (with operational offices in Tonawanda, New York and manufacturing in Whitmore Lake, Michigan). The company designs, produces, and sells engineered refractory materials and pre-cast shapes used in high-temperature industrial applications, employing 101-250 people and operating a global network of sales offices and certified contractors across the Americas, Europe, the Middle East, and Asia. Since its June 14, 2019 acquisition by Unifrax, Stellar has functioned as a subsidiary within Unifrax's ~2,300-employee, 31-facility specialty fibers platform.

The company's core technology is the patented Thermbond Binder System, a two-part refractory system combining blended dry aggregate with a liquid activator to form an ionically bonded refractory that chemically adheres to existing fired refractories and itself. This enables rapid dry-out and heat-up rates of 500°F per hour without holds, faster installation, and non-wetting performance versus conventional cement-bonded refractories. Product lines include the Formula Series, 7000 Series, 7200 Series, Thermbrake and Heatbrake insulating products, Concrete Series, Thermblock pre-cast shapes, and Thermbond Insulating Solutions built on Saffil 72+ polycrystalline fiber. Products serve aluminum smelters and casthouses, hydrocarbon processing and refineries, power generation, cement and minerals processing, and steel operations.

Stellar generates revenue primarily through direct one-time product sales of refractory materials and engineered pre-cast shapes to industrial enterprises, supplemented by hardware sales for insulating system installations. Distribution is global via a network of certified contractors and certified pre-casters supported by regional Thermbond Advisors who provide technical consultation, engineering support, and installation guidance. Pricing is custom-quoted based on product type, formulation complexity, and volume, with the 2018 ISO 9001:2015 certification at Whitmore Lake supporting quality-driven positioning in mission-critical refractory applications.

Name

Stellar Materials, LLC

Legal name

Stellar Materials, LLC

Website

http://thermbond.com

Company type

Private

Founded year

2015

Operating status

Operating

Headcount range

101–250 employees

Short description

Stellar Materials, operating as Thermbond, manufactures patented ionically bonded refractory products and pre-cast shapes for high-temperature industrial applications in aluminum, petrochemical, power, cement, and steel sectors, distributed globally via certified contractors since its 1990 founding and 2019 acquisition by Unifrax.

Ownership category

akta.pro rank

Product category

Industrial Refractory Materials

SIC

Miscellaneous Chemical Products (2890), Adhesives & Sealants (2891)

akta.pro primary industry

Specialty Polymers & Resins (Engineered Materials) (IMAEABAK)

Keywords

• Refractory materials
• Monolithic refractories
• Precast refractory shapes
• Industrial furnace linings
• High-temperature insulation

Headquarters

HQ city

Boca Raton

HQ country

United States

HQ region

North America

Offices9 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Refractory Materials - Formula Series: Two-component refractory products (dry formulation + liquid activator) sold in pre-measured bags and jugs. Includes dozens of formulations for casting, troweling, gunning, pumping, ramming, and shotcreting applications. Revenue from direct product sales to industrial customers and through certified contractors.
2. 7000 Series Dense Refractory Products: Dense refractory products mixing with water for full thickness linings or pre-cast shapes. Sold in green labeled bags or bulk bags for large volume applications.
3. Thermblock Precast Shapes: Pre-engineered, pre-cast shapes made from Thermbond products. Company engineers optimal shapes, works with certified pre-casters to produce end-products with unparalleled performance.
4. Thermbond Insulating Solutions: Engineered and customized systems including Saffil 72+ fiber-based products and Thermbolts installation hardware for long-term or cyclic high-temperature environments.

Pricing tiers

Go-to-market motion3 records

Distribution channels2 records

Marketing channels7 records

Core offering

Stellar Materials, LLC (doing business as Thermbond Refractory Products) manufactures and sells proprietary refractory materials, including monolithic refractory mixes, precast engineered shapes, and high-temperature insulating solutions. The company uses its patented Thermbond Binder System — a two-part ionic-bonded dry aggregate plus liquid activator — to produce a complete line of refractory products for installation, repair, and full lining replacement in industrial furnaces across aluminum, hydrocarbon processing, power generation, steel, and cement/minerals processing industries.

Product overview

Thermbond Refractory Products is a complete line of engineered refractory materials using the proprietary patented Thermbond Binder System. The product portfolio consists of four distinct product series: (1) Formula Series - the original flagship line for repairing/replacing refractory linings with chemical bonding to existing substrates; (2) 7000 Series - dense mixes with ceramic-type properties for full thickness linings; (3) 7200 Series - the newest generation offering versatile one-bag solutions for multiple installation methods; and (4) Thermbrake/Heatbrake Series - lightweight to medium insulating refractory products. Supporting offerings include Concrete Series for concrete repairs, Thermblock branded precast shapes, and Thermbond Insulating Solutions featuring Saffil 72+ fiber technology. The patented two-part binder system (dry aggregate + liquid activator) enables rapid installation, fast dry-out, chemical bonding to existing refractories, and resistance to thermal shock and abrasion. Products serve industries including Aluminum, Hydrocarbon Processing, Power Generation, Steel, Minerals Processing, and Cement.

Differentiator

Problem solved

Functional benefit

Brands

• Thermbond Formula Series: Original line of refractory products with dozens of formulations ranging from dense to medium weight for casting, troweling, gunning, pumping, ramming, and shotcreting.
• Thermbond 7000 Series
• Thermbond 7200 Series
• Thermbrake Series
• Heatbrake Series
• Concrete Series
• Thermbolts

Products and services

• Formula Series The original flagship line of Thermbond refractory products, consisting of two-part formulations (dry aggregate in red bags plus liquid activator in red jugs) for repairing or replacing existing refractory linings. Dozens of formulations range from dense to medium weight, applied via casting, troweling, gunning, pumping, ramming, and shotcreting. Chemically bonds to existing refractory substrates. Sold to industrial operators and certified contractors.
• 7000 Series Dense refractory mixes with properties comparable to technical ceramics, intended for full thickness linings or pre-cast shapes requiring higher strengths and thermal stability (up to 3000°F). Sets and cures quickly, mixes with water, and is supplied in green labeled bags or bulk bags.
• 7200 Series The newest generation of Thermbond technology offering rapid installation, enhanced durability, and cost-effective solutions. Features one-bag versatility for multiple applications, quick setting times under one hour, and firing times twice as fast as conventional products. Suitable for pumping, ramming, gunning, shotcreting, and casting.
• Thermbrake Series Lightweight insulating refractory products for the repair or replacement of back-up insulating linings. Features fast exothermic set and can be heated at a much faster rate than conventional insulating refractory products. Two-part system with blue labeled bags and jugs.
• Heatbrake Series Light to medium weight insulating refractory products for the repair or replacement of insulating linings where volume stability at higher temperatures is critical. Features fast exothermic set and faster heating rates than conventional products. Two-part system with yellow labeled bags and jugs.
• Concrete Series Dense, fast-setting materials for the repair or replacement of ambient or intermittently-heated concrete areas. Chemically bonds to existing concrete substrates and can permanently repair broken or spalled concrete. Two-part system with purple labeled bags and jugs.
• Thermblock Precast Shapes Pre-engineered, pre-cast refractory shapes made from Thermbond products. Engineered for optimal shape, material selection, internal support systems, and external attachment systems. Includes shapes such as Air Blaster, Butterfly Damper, Damper, Feed Shelf, Ladle Cover, and Nose Ring for various industrial furnace applications.
• Thermbond Insulating Solutions Engineered and customized systems for long-term or cyclic high-temperature environments. Uses Saffil 72+ polycrystalline fiber (PCF) with superior insulating characteristics, thermal stability, and health & safety properties. Includes MAFTEC, PCW panels, and Thermbolts for installation.

Quantifiable outcome

• Reduces downtime by enabling rapid dry-out and heat-up rates of 500°F (260°C) per hour without holds
• +7 more outcomes

Named customers5 records

Segments5 records

Ideal customer profiles5 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Partnerships

Two partnerships are on record, tiered regional expansion and core.

• Superflow Argentinaregional expansionStrategic or Co-development Partner · 23 July 2018Superflow Argentina is an expansion of the existing 12+ year strategic partnership with Superflow Brazil. The Brazilian company, which focuses on petrochemical markets and has expanded into all industrial markets, opened operations in Argentina to serve customers in that region with Thermbond products.
• Superflow Brazil (Superflow Engenharia de Medição)coreStrategic or Co-development Partner · 2 April 2018Strategic partner for over 12 years. Partnership began with focus on petrochemical market and expanded to all industrial markets. Superflow's focus on customer service and delivering value to customers has been key to their growth and the success of the partnership.

Scale indicators5 records

Recent moves7 records

Expansion highlights6 records

Broad incumbents

• Vesuvius (Foseco): Global supplier of refractory products, foundry consumables, and flow control technologies serving steel, iron, and non-ferrous metals customers. Overlaps with Thermbond in steel ladle, tundish, and aluminum applications; broader product breadth including metallurgical consumables.
• Morgan Advanced Materials: Diversified manufacturer of advanced ceramics and high-temperature materials, including thermal ceramics (formerly Thermal Ceramics) and insulating fiber products overlapping with Thermbond Insulating Solutions (Saffil 72+ PCF). Broader portfolio but overlapping product chemistry and end-market customers.
• Saint-Gobain (High-Temp Solutions): Global materials group with high-performance refractory and insulation product lines serving industrial customers. Broader portfolio (construction products, building materials) but directly competes in high-temperature industrial insulation overlapping with Thermbond Insulating Solutions.

Direct peers

• Resco Products: Manufacturer of refractory products including monolithic mixes, plastics, and precast shapes serving steel, aluminum, foundry, cement, and petrochemical customers. Closest direct competitor to Thermbond's Formula and 7000 Series monolithics in the Americas market.
• Allied Mineral Products: Privately held manufacturer of monolithic refractories and precast shapes with a global manufacturing footprint. Comparable customer verticals (aluminum, steel, foundry, cement) and similar business model combining proprietary chemistry with engineered precast shapes.
• RHI Magnesita: Global refractory market leader formed by the merger of RHI and Magnesita, supplying monolithic and shaped refractories to steel, cement, non-ferrous metals, and industrial customers. Overlaps with Thermbond in monolithic refractory chemistry and primary end markets (steel, aluminum, cement).
• HarbisonWalker International: North America's largest producer of refractory products and services, offering monolithic refractories, precast shapes, and installation services across steel, aluminum, cement, and petrochemical end markets. Directly comparable product portfolio and customer base to Thermbond, with much larger scale.
• Calderys (Imerys Group): Imerys-owned refractory solutions provider offering monolithics, precast shapes, and installation services to steel, cement, aluminum, and petrochemical customers globally. Directly competes in monolithic refractory chemistry and shares Thermbond's focus on heat-up speed and operational uptime.
• Plibrico Company: U.S.-based manufacturer and installer of monolithic refractories serving steel, aluminum, power generation, and petrochemical customers. Directly competes with Thermbond's certified contractor installation model and Formula Series monolithics.

Emerging players

• Pyrotek: Privately held manufacturer of high-temperature industrial materials including refractory products, molten metal handling equipment, and fibrous materials for aluminum, foundry, and glass customers. Overlaps with Thermbond in aluminum melting and holding furnace applications.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights7 records

Customer concentration

• Facebookfacebook.com/thermbond
• LinkedInlinkedin.com/company/1975014

Compliance1 record

Revenue estimate

Valuation estimate

Number of profiles

Profiles4 records

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 Stellar Materials, LLC