SELEE Corp

What SELEE Corp does

SELEE Corp is a Hendersonville, North Carolina-based technical materials company that pioneered the use of ceramic foam in molten metal filtration. Founded in 1976 (originally as a division of Consolidated Aluminum Corporation) and operational as a wholly owned subsidiary of UK-listed Porvair plc since 1995, the company develops and manufactures proprietary porous ceramic filters, filtration system components, and refractory products for aluminum cast houses, iron and steel foundries, copper processors, and the investment casting industry serving aerospace and industrial gas turbine applications. Its technology centers on a continuous open ceramic foam structure developed in the mid-1970s, expanded over five decades into a portfolio that includes the patented CS-X phosphate-free filter, CS-T for lithium aluminum, PRZ zirconia filters for steel, iron foundry filters (IB, IC, ID), Matrix filters for investment casting, MA-X copper filters, and the SELEE Advanced Ceramics line of crucibles, ladle liners, and Pak-Tite Rams. The company holds multiple international patents and trademarks and reports greater than 98% market share in ceramic foam filters used in aluminum cast houses.

Revenue is generated through direct sales of one-time consumable filter products and one-time filtration system components (filter bowls, preheat burners, LIG Ultra Series lids, troughs and launders), supplemented by professional services revenue from metallurgical consulting, defect analysis, root cause investigation, process audits, and on-site technical support. Pricing is quote-based and delivered through a hybrid enterprise field sales and inside sales motion: dedicated regional account managers and applications engineers cover North America, EMEA, Latin America, Asia, and Eastern Europe, while product coordinators (Iron/Aluminum Foundry, Cast House, Super Alloy Filtration, HTP) provide segment-specific inside sales support. Manufacturing operates from three ISO 9001:2015-certified facilities in Hendersonville NC, Gilberts IL, and Xiaogan (Hubei, China), serving more than 500 customers in over 50 countries. Bundled metallurgical services — including documented cases of annualized scrap cost reductions exceeding $100,000 — and bundled technical support differentiate the offering and reinforce long-tenured customer relationships, including a documented 24-year customer engagement.

Name

SELEE Corp

Legal name

SELEE Corp

Website

https://selee.com

Company type

Private

Founded year

1976

Operating status

Operating

Headcount range

1–10 employees

Short description

SELEE Corp, a Hendersonville, NC subsidiary of UK-listed Porvair plc, pioneers ceramic foam filtration for molten metals, serving aluminum cast houses, foundries, copper processors, and investment casters in 50+ countries with patented filters, system components, and metallurgical services.

Ownership category

akta.pro rank

Product category

Industrial Metal Filtration Products

NAICS

Electroplating, Plating, Polishing, Anodizing, and Coloring (332813), Nonferrous Metal (except Aluminum) Smelting and Refining (33141)

SIC

Primary Smelting & Refining Of Nonferrous Metals (3330), Metal Forgings & Stampings (3460), Paints, Varnishes, Lacquers, Enamels & Allied Prods (2851)

akta.pro primary industry

Electroplating & Metallization Chemicals (Cu/Ni/Au plating, additives) (IMAEAKAK)

Keywords

• Ceramic foam filters
• Metal filtration products
• Investment casting filters
• Foundry filtration systems
• Molten metal containment

Headquarters

HQ city

Hendersonville

HQ country

United States

HQ region

North America

Offices4 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Ceramic Foam Filter Sales: Sale of ceramic foam filters for aluminum cast houses, foundries (aluminum, iron, steel), investment casting, and copper applications. Filters sold in various compositions (silicon carbide, aluminosilicate, zirconia) and sizes.
2. Metal Filtration System Components: Sale of filter bowls/boxes, high volume burners, preheat lids, troughs/launders, and complete filtration systems. Components available as individual items or complete packages.
3. Advanced Ceramics Products: Sale of refractory products including crucibles, ladle liners, spouts, and Pak-Tite Rams for heat treating and investment casting applications.
4. Metallurgical Services: Professional metallurgical consulting services including defect analysis, root cause investigation, metal quality assessment, process audits, ceramic materials selection, and new process design. Also includes outsourcing of client laboratory services.
5. Technical Support Services: Technical support including design assistance, drawings and proposals (AutoCAD, Inventor), quality audits, lab services (micro-chemical analysis, inclusion analysis, digital imaging), and on-site support (site surveys, installations, operator training, trials).

Pricing tiers

Go-to-market motion2 records

Distribution channels3 records

Marketing channels5 records

Core offering

SELEE Corp manufactures and sells ceramic foam filters and related refractory/filtration system components used to remove non-metallic inclusions from molten metals (aluminum, iron, steel, copper) and for investment casting of nickel-based superalloys. The product portfolio spans proprietary CS-X, CS-T, PRZ, IB/IC/ID, MA-X and Matrix filter formulations, plus filter bowls, preheat burners, LIG Ultra preheat lids, fused silica troughs/launders, SafeSeal gaskets, and SELEE Advanced Ceramics refractory products (crucibles, ladle liners, spouts, Pak-Tite Rams). SELEE also provides complementary metallurgical consulting and technical support services to foundry customers in more than 50 countries.

Product overview

SELEE Corp is a technical materials company specializing in porous ceramics for metal filtration, primarily serving aluminum cast houses, iron and steel foundries, copper processors, and investment casting operations. The product portfolio centers on Ceramic Foam Filters (CFF) across multiple formulations: CS-X (phosphate-free for aluminum), CS-T (for lithium aluminum), PRZ (zirconia for steel), iron foundry filters (IB, IC, ID), and copper filters (MA-X). Supporting system components include Filter Bowls/Boxes, HVB Preheat Burners, LIG Ultra Series preheat lids, and Troughs/Launders. The SELEE Advanced Ceramics division provides refractory products including crucibles, ladle liners, Pak-Tite rams, and custom spouts for investment casting. The company also offers complementary Metallurgical Services and Technical Support including defect analysis, process audits, lab services, and on-site training. Products are sold in more than 50 countries with manufacturing facilities in Hendersonville, NC and Xiaogan, Hubei, China.

Differentiator

Problem solved

Functional benefit

Products and services

• CS-X Ceramic Foam Filter Patented phosphate-free ceramic foam filter for aluminum cast houses, offering improved performance, worker safety, and environmental benefits over traditional phosphate-bonded alumina (PBA) filters. Sizes range from 225mm to 660mm square.
• CS-T Lithium Aluminum Filter Ceramic foam filter exclusively developed for Lithium Aluminum alloys, providing a more stable filter-metal interface, better inclusion adhesion, and significant reduction in filter-metal reaction.
• CS-W Filter Ceramic foam filter variant for aluminum cast house applications.
• SELEE Ceramic Foam Filters - Iron Silicon carbide and aluminosilicate-based ceramic foam filters for iron filtration. Precision cut after firing to tightest dimensional tolerances, featuring deep-bed filtration effect throughout filter thickness.
• SELEE Ceramic Foam Filters - Steel (PRZ) Magnesia-stabilized zirconia filter for demanding steel foundry requirements. Offers thermal shock resistance, fewer reoxidation defects, and higher casting yield.
• MA-X Copper Filter Ceramic foam filter for copper applications that reduces wire and rod breakage by up to 35%, decreases nozzle blockage, and increases casting yield.
• Matrix Filters Investment casting filters with significantly improved structural integrity compared to ceramic foam, eliminating hollow struts and loose filter fragments in the shell after auto-claving.
• IB Filters (High Strength SiC) High strength silicon carbide filter for iron foundry applications with superior filtration characteristics. Covered by US patent 6663776 and international equivalents.
• IC and ID Filters Improved ceramic foam filters for better filtration of molten iron, including higher strength mullite-based formulations (ID). Covered by US patents 7718114 and pending WO 2014018750.
• SELEE Sintered Alumina Filter (HTP) High-temperature processing filter for demanding applications requiring sintered alumina materials.
• FiberOx Filters Ceramic foam filters with fiber oxide composition for various foundry applications.
• Filter Bowls/Boxes Precision-engineered filter bowls using innovative fused silica material. Available as Single, Duplex, Triplex, or Staged configurations. Features thermal-shock resistance, non-wetting properties, and corrosion resistance.
• HVB Preheat Burners High Volume Burners (HVB) for safe and reliable pre-heating of filter bowls and ceramic foam filters. Available in models meeting US, European, and international standards.
• LIG Ultra Series Advanced fully automatic gas-fired filter preheat system for consistent preheating of CS-X filters with SafeSeal expandable gasket. Features Ethernet connectivity for SCADA data collection, digital temperature control, and programmable multiple set point temperatures.
• Troughs and Launders Fused silica troughs and launders using proprietary non-wetting additives for corrosion resistance, insulation, high strength, and lower thermal diffusivity.
• SELEE Advanced Ceramics Crucibles High-quality custom refractory crucibles in a wide selection of shapes and melting capacities for investment casting applications.
• Pak-Tite Rams High-thermal expansion dry vibratable ramming materials for use with crucibles and ladles, available in silica and spinel formulations.
• Ladle Liners Strong and efficient ladle liners in various sizes and spout configurations, including monolithic bottom-pour liners with integrated skimmers.
• Custom Spouts Unlimited custom shape capabilities for spouts and integral crucibles tailored to customer specifications.
• Micromass Kiln Furniture Porous ceramic kiln furniture products for thermal processing applications, manufactured under US patent 6235665.
• Tylar Kiln Furniture Kiln furniture products for thermal processing applications.
• Silcor Products Chemical processing products including Silcor CS and Silcor TBCS for thermal barrier coating applications.
• SELEE Metallurgical Services Metallurgical analysis and consulting including defect analysis, root cause investigation, metal quality assessment, process audits, ceramic materials selection, and new process design for aluminum cast houses and foundries. Documented outcome: annualized scrap reduction exceeding $100,000 for a client.
• Technical Support Services Engineering and scientific technical support including design, drawings, proposals (AutoCAD, Inventor), filter sizing, quality audits, problem solving, lab services (micro-chemical analysis, inclusion analysis, digital imaging), and on-site support including site surveys, installations, operator training, and trials.
• SafeSeal Gasket Proprietary expandable gasket system ensuring secure fit of filters in filter bowls.

Quantifiable outcome

• Annualized scrap reduction exceeding $100,000 for clients utilizing metallurgical services
• +3 more outcomes

Named customers1 record

Segments7 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration1 record

Feature10 records

Partnerships

One partnership is on record.

• MAGMASOFT (AVAsoft GmbH)flagshipTechnology or Integration · 8 August 2025Partnership with the leader in casting simulation software. MAGMASOFT 6.1 now features SELEE Filter Database with validated ceramic foam filter data for iron foundries. Includes detailed property data such as pore size, flow rate, and filtration capacity. Automates filter selection and placement in casting simulation for more accurate and efficient results.

Scale indicators7 records

Recent moves11 records

Expansion highlights5 records

Direct peers

• Pyrotek: Pyrotek is a global manufacturer of high-temperature materials and equipment for the metal casting industry, including ceramic foam filters directly competing with SELEE's aluminum, iron, and steel foundry filter products. Both companies serve molten metal filtration customers with similar product categories and global footprints.
• Foseco (Vesuvius plc): Foseco, a division of Vesuvius plc, is a leading global supplier of consumables to the metal casting industry, including filtration products, feeding systems, and refractory materials. Foseco competes directly with SELEE in foundry filtration, particularly in iron and steel foundry segments.
• Drache Umwelttechnik GmbH: Drache is a German manufacturer of ceramic foam filters and filtration systems for the foundry industry, cited as both a partner and overlapping supplier with SELEE. Drache competes in the same iron, steel, and aluminum foundry filter markets across Europe and globally.

Broad incumbents

• Saint-Gobain (Performance Ceramics & Refractories): Saint-Gobain is a global industrial materials group with a Performance Ceramics & Refractories division producing advanced ceramics used in high-temperature industrial applications, including molten metal handling. While much broader than SELEE, Saint-Gobain competes in adjacent refractory and ceramic product categories serving metal casting customers.
• Morgan Advanced Materials: Morgan Advanced Materials is a global manufacturer of technical ceramics and specialty materials serving industrial applications including molten metal handling, refractories, and high-temperature filtration. Morgan competes with SELEE in select refractory and advanced ceramics categories serving metal casting and investment casting industries.
• CoorsTek: CoorsTek is a leading global manufacturer of technical ceramics serving industrial, semiconductor, aerospace, and metal processing industries. While primarily serving broader markets, CoorsTek produces advanced ceramic components including some molten metal handling products that overlap with SELEE's refractory portfolio.
• Harbison-Walker International (HWI): Harbison-Walker International is one of North America's largest refractory product manufacturers serving iron, steel, and nonferrous metal industries. HWI competes with SELEE's SELEE Advanced Ceramics division in ladle liners, crucibles, and other refractory products for metal casting applications.
• Resco Products: Resco Products is a US-based global manufacturer of refractories serving steel, iron, nonferrous, and other high-temperature industries. Resco competes with SELEE in monolithic refractories, ladle liners, and specialty ceramic products for metal handling and casting operations.
• ASK Chemicals: ASK Chemicals is a global supplier of foundry consumables including binders, coatings, and filtration products serving iron, steel, and aluminum foundries. ASK Chemicals offers foundry filters and complementary consumables that overlap with SELEE's filtration and refractory offerings to foundry customers.

Others

• Imerys (High Temperature Solutions): Imerys is a French global specialty minerals group producing refractory minerals and high-temperature solutions including monolithic refractories and ceramic materials serving metal casting industries. Imerys provides raw materials and competing refractory solutions adjacent to SELEE's advanced ceramics and filtration products.

Market position

Competitive moat6 records

Key risks5 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/selee

Compliance5 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles17 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 SELEE Corp