Name

SILCA GmbH

Legal name

Silca Service- und Vertriebsgesellschaft für Dämmstoffe mbH

Website

https://silca-online.de

Company type

Private

Founded year

1986

Operating status

Operating

Headcount range

11–50 employees

Short description

SILCA GmbH is a German manufacturer of calcium silicate boards, microporous panels, and bio-soluble AES fibre insulation, serving OEMs and installers in industrial high-temperature, fireplace, foundry, and fire protection markets via owned subsidiaries and global distributors.

Ownership category

akta.pro rank

Product category

Industrial Insulation Materials

NAICS

Clay Building Material and Refractories Manufacturing (327120)

akta.pro primary industry

Calcium Silicate Bricks & Blocks (IMADABAD)

akta.pro secondary industries

Drywall, Plastering & Insulation (EDAOAAAE), Thermal & Acoustic Insulation Textiles (Insulation Felts/Soundproofing) (IMAOADAL)

Keywords

• High-temperature insulation
• Calcium silicate boards
• Ceramic fiber products
• Refractory materials
• Fire protection boards

Headquarters

HQ city

Mettmann

HQ country

Germany

HQ region

Europe

Offices10 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. Industrial High-Temperature Insulation Materials: Sale of high-temperature insulation materials including calcium silicate boards, ceramic fibre products, ceramic fibre substitutes (bio-soluble AES wool), microporous insulation, and accessories to industrial customers in sectors such as furnace construction, mechanical engineering, steel foundries, and glass/ceramic industries.
2. Domestic Fireplaces and Chimneys Products: Sale of calcium silicate insulation boards, construction boards, combustion chamber boards, plasters, adhesives, sealants, and accessories to tradesmen and retailers serving the domestic fireplace and tiled stove market.
3. Engineering and Technical Services: Accompanying material supply, SILCA offers holistic services including technical consultation, engineering (including CAD documentation), and complete services including assembly/installation of high-temperature systems.
4. Non-ferrous Metal Casting Materials: Supply of calcium silicate materials and accessories for non-ferrous metal casting applications including mould casting, electrolysis, and semifinished products.

Go-to-market motion2 records

Distribution channels3 records

Marketing channels5 records

Core offering

SILCA GmbH manufactures and distributes high-temperature insulation materials, calcium silicate boards, ceramic fibre products, bio-soluble AES fibre substitutes, and microporous insulation for industrial furnace construction, domestic fireplaces/chimneys, and non-ferrous metal casting applications. As the international service and sales company of the Calsitherm Group, SILCA also provides complementary engineering, technical consultation, CAD documentation, and on-site installation services for high-temperature systems.

Product overview

SILCA GmbH is the only German manufacturer of calcium silicate products, offering a comprehensive portfolio of high-temperature insulation materials and fire protection solutions organized into three main divisions: Industrial High-Temperature Insulation, Non-Ferrous Metal Casting, and Domestic Fireplaces and Chimneys. The industrial division includes calcium silicate boards (SILCAPAN, SILCAL, CALCAST, SILCATEC, SILCASTEEL), ceramic fiber products (SILCAFLEX, SILCABOARD, SILCAVAC), bio-soluble fiber alternatives (SILCAWOOL), and module systems (SILCASTACK, SILCAFIX, SILCAPACK). The domestic division provides fireplace construction systems including insulation boards (SILCA 250KM, SILCAHEAT 600C), combustion chamber boards (SILCAPAN 750FB), construction boards (SILCARAPID 850CB), microporous insulation (SILCAPOR 1000), and complete finishing systems (SILCACON plaster system, SILCADUR adhesives/sealants). The non-ferrous metal casting division offers specialized calcium silicate products (CALCAST CC series) including carbon fiber and graphite reinforced variants for mold casting applications.

Differentiator

Problem solved

Functional benefit

Brands

• SILCA: Primary brand for high-temperature insulation, calcium silicate products, ceramic fibre products, and domestic fireplace solutions.

Products and services

• SILCAPAN 400 / 45M / 600 / 800 — Large-Format Calcium Silicate Insulation Boards Large-format lightweight calcium silicate insulation boards for high-temperature industrial applications across furnace construction, heat treatment, and thermal process systems.
• SILCAL 900 / 1000 / 1100 — Lightweight Calcium Silicate Boards Lightweight calcium silicate insulation boards for thermal insulation in industrial furnaces and heat treatment facilities, classified for use up to 1,100°C.
• MICROCAL 1100 — Lightweight Calcium Silicate Board Lightweight calcium silicate insulation board with excellent thermal insulation properties for industrial furnace lining and electrolysis applications in non-ferrous metal processing.
• SILCAPAN 750 / 845 / 850 — Dense Calcium Silicate Boards Dense calcium silicate boards for high-temperature applications in industrial furnaces and non-ferrous metal casting, providing thermal stability under load.
• SILCASTEEL — Pressure-Resistant Calcium Silicate for Steel Industry Pressure-resistant calcium silicate material specifically developed for the steel industry, designed to withstand mechanical loads in high-temperature steel processing environments.
• CALCAST CC 100 – CC 350 — Dense Calcium Silicate Boards Annealed dense calcium silicate boards for industrial furnace lining and non-ferrous metal casting applications (mould casting, electrolysis, semifinished products).
• CALCAST CC 500 — High-Density Calcium Silicate Boards High-density annealed calcium silicate boards engineered for the most demanding industrial furnace and non-ferrous metal casting applications.
• CALCAST CC 155 G4 / G8 / G16 — Calcium Silicate/Graphite Composites Calcium silicate/graphite composite materials for non-ferrous metal casting mould applications, available in three graphite grades (G4, G8, G16).
• CALCAST CC 60 — Carbon Fibre-Reinforced Calcium Silicate Carbon fibre-reinforced calcium silicate material for specialised non-ferrous metal casting applications requiring enhanced mechanical performance.
• SILCATEC 1000 / 1000 E / 1000 HD / 1000 E HD — Electrically Insulating Calcium Silicates Thermally and electrically insulating calcium silicate grades (standard, E, HD, E HD variants) for high-temperature industrial applications requiring combined thermal and electrical insulation.
• SILCAVAC / SILCABOARD — Vacuum-Formed Ceramic Fibre Products Vacuum-formed ceramic fibre products (form parts and boards) available in grades 126-27N, 143-28N, 160-25N, 170-40N, and 180-40N, providing economical solutions for larger quantities in various geometries at temperatures up to 1,800°C.
• SILCAFLEX — Ceramic Fibre Blankets, Papers, and Textiles Ceramic fibre blankets, papers, and textiles for high-temperature insulation in industrial furnaces and thermal process systems.
• SILCAFELT — Aluminium Silicate Wool Papers and Felts Papers and felts based on aluminium silicate wool for industrial high-temperature insulation applications.
• SILCAPACK and SILCABLOCK — Ceramic Fibre Module Products Module products for industrial furnace lining, available in ceramic fibre and bio-soluble variants, providing efficient installation of furnace wall insulation.
• SILCASTACK — Strip Modules for Furnace Lining Strip modules for industrial furnace lining with high-temperature resistance up to 1,600°C, providing reliable and durable furnace wall bonding.
• SILCASTACK Kombimodule — Combination Strip Modules Combination strip modules combining 1,600°C fibres (hot side) and 1,430°C fibres (colder side) through intermeshing of individual strips; an economic alternative to full-fibre modules using only the high-value fibre actually required for thermal demands, up to 1,450°C.
• SILCAFIX — Centre-Point Fixation Modules Modules with centre-point fixation for easy installation in difficult-to-access areas of industrial furnaces, simplifying furnace lining assembly.
• SILCAWOOL — Bio-Soluble High-Temperature Fibres Bio-soluble high-temperature fibres on calcium-magnesium-silicate (AES wool) basis providing a safer alternative to traditional ceramic fibre, with high thermal stability, high tensile strength, good elasticity, and no hazard classification under REACH Regulation (EC) No.1907/2006.
• SILCAVER 55 — Glass Fibre Textiles Glass fibre textiles (tapes and sealing cords) for thermal separation and sealing in ovens, fireplaces, and industrial high-temperature equipment.
• SILCAMIN — Mineral Wool Boards Mineral wool boards for thermal insulation in various industrial applications.
• SILCAREF — Lightweight Refractory Bricks Lightweight refractory bricks for industrial furnace construction, providing structural and thermal performance in high-temperature applications.
• SILCA Brandschutzplatten — Fire Protection Boards Fire protection boards for industrial and construction applications, providing high-temperature resistance and fire safety compliance for preventive fire protection in buildings, ships, and offshore installations.
• SILCAFUSE — Cast Ceramic Components Cast ceramic components based on fused silica for technical ceramic applications.
• SILCAPAN-KE 400 — Composite Insulation Elements Composite elements combining insulation properties for specialised industrial applications.
• SILCADUR / SILCASIL — Industrial High-Temperature Adhesives, Coatings, and Sealants High-temperature adhesives, coatings, and sealing materials for industrial insulation applications.
• SILCADUR HTP — Industrial High-Temperature Paste High-temperature paste for sealing and bonding in industrial furnace applications.
• Verankerungen — Heat-Resistant Anchoring Systems Heat-resistant anchoring systems for securing insulation modules in industrial furnaces.
• SILCA 250KM — Domestic Fireplace Insulation Board Calcium silicate insulation board for domestic fireplaces and tiled stoves.
• SILCAHEAT 600C — Domestic Fireplace Construction Board Construction board for fireplaces with high thermal resistance for domestic heating applications.
• SILCAPAN 750FB — Combustion Chamber Board Combustion chamber board for fireplace lining with high compressive and flexural strength, designed for the direct combustion zone of domestic fireplaces.
• SILCARAPID 850CB — Domestic Construction Board Self-supporting calcium silicate construction board with smooth factory-finished surface eliminating the need for plastering; 17mm thin, CE certified (0432 CPR-00697-01), non-combustible A2-s1,d0, externally monitored by MPA NRW.
• SILCAPOR 1000 — Microporous Insulation Material Lightweight microporous insulation material based on highly dispersive amorphous silica with extremely low thermal conductivity for back-up insulation in fireplaces and furnaces; upper application temperature 1,000°C.
• SILCACON — Complete Plaster System Complete plaster system for SILCA 250KM and SILCAHEAT 600C boards, including adhesive, primer, lime plaster, and smoothing lime, for finishing domestic fireplace installations.
• SILCADUR Domestic Product Line Product line for domestic fireplace installation including SILCADUR HFS adhesive, SILCADUR 110 assembly foam, SILCADUR CSMH adhesive, and SILCADUR HTI impregnation.
• SILCASIL 320 — High-Temperature Silicone Sealant High-temperature silicone sealant with resistance up to 320°C for sealing and bonding in fireplaces.
• SILCATEX-SE — Glass Mesh Fabric for Plaster Reinforcement Glass mesh fabric (e-glass) for plaster reinforcement in fireplace construction, alkali-resistant up to 550°C.
• SILCAWOOL AST — Chimney Connection Fittings Bio-soluble chimney connection fittings made from SILCAWOOL fibre for easy installation in domestic fireplace and chimney systems.
• SILCADUR 110 — Two-Component Mineral Assembly Foam Two-component assembly foam for fireplace installation based on inorganic binders and sodium silicate; expands 3-4 times its original volume, non-combustible A1 (DIN-EN 13501-1), max application temperature 1,100°C.
• SILCAWOOL Domestic Bio-Soluble Products Bio-soluble product family for domestic fireplace installation based on SILCAWOOL fibre, providing safe, REACH-compliant thermal insulation.
• SILCAVER 55 — Domestic Glass Fibre Textile Products Glass fibre textile products (tapes and sealing cords) for thermal separation and sealing in domestic fireplaces and stoves.
• SILCABOARD and SILCASAL — Vacuum-Formed Fibre Boards and Shapes Vacuum-formed fibre products (boards and shapes) based on aluminium silicate and alkaline earth silicate wool for high-temperature applications.
• Engineering and Technical Service for High-Temperature Systems Holistic services accompanying material supply, including technical consultation, engineering with CAD documentation, and complete assembly/installation services for high-temperature industrial systems. Provided as a service offering across all SILCA product lines.

Quantifiable outcome

• SILCASTACK combination modules reduce the amount of expensive 1,600°C fibre required to only what is actually needed for the specific thermal heat transfer, providing an economical alternative to full-fibre modules
• +2 more outcomes

Segments4 records

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature7 records

Partnerships

Six partnerships are on record, tiered core, regional and minor.

• Calsitherm GroupcoreOthersSILCA is the international service and sales company of the Calsitherm Group. The Calsitherm Silikatbaustoffe GmbH manufacturing plant in Paderborn (Germany) produces SILCA brand products. The group encompasses Calsitherm Silikatbaustoffe GmbH (production) and redstone GmbH & Co. KG (Bremen, Germany) as related entities within the group structure.
• SRS Amsterdam B.V.regionalChannel Partner/ Reseller/ DistributorRegional distribution partner for the Netherlands market. Listed on the SILCA worldmap with contact details (Robert Stip, Kabelweg 34, Amsterdam).
• International Syalons (Newcastle) Ltd.regionalChannel Partner/ Reseller/ DistributorRegional distribution partner for Great Britain (Wallsend, Tyne & Wear, NE28 6TT). Listed on the SILCA worldmap as partner company.
• Industrial Products Int. (IPI)regionalChannel Partner/ Reseller/ DistributorRegional distribution partner for the USA market (Englewood, Colorado 80110). Listed on the SILCA worldmap.
• ALFA Trend Ind. Com. LTDAregionalChannel Partner/ Reseller/ DistributorRegional distribution partner for the Brasil market (Indaiatuba - SP, Rua Macassit 555, 13347-190). Contact: Johnny Diniz Sandes. Listed on the SILCA worldmap.
• redstone GmbH & Co. KGminorOthersRelated entity within the Calsitherm Group, listed alongside SILCA on the company worldmap (Haferwende 1, 28357 Bremen, Germany).

Scale indicators5 records

Recent moves6 records

Expansion highlights4 records

Emerging players

• Isolfrax (Alkegen brand): Bio-soluble alkaline earth silicate (AES) high-temperature fibre brand positioned as a REACH-compliant alternative to traditional ceramic fibre — direct substitute technology to SILCAWOOL in industrial and domestic fireplace markets.
• Luyang Energy-Saving Materials Co., Ltd. Chinese manufacturer of ceramic fibre, bio-soluble fibre, and microporous insulation products exporting globally — emerging low-cost alternative to SILCA's SILCAFLEX and SILCAWOOL lines in price-sensitive specifications.

Direct peers

• Promat (Etex Group): Specialist in passive fire protection and high-temperature insulation boards (calcium silicate and microporous) for building, marine, and industrial furnace applications — directly comparable to SILCA's fire protection and industrial insulation portfolio.
• Skamol A/S: Danish manufacturer of calcium silicate insulation boards (SkamoEnclosure, SkamoStove) for industrial high-temperature applications and domestic fireplaces — the closest direct competitor to SILCA's calcium silicate core product line.
• Pyrotek: Global supplier of refractory products, fibre boards, and high-temperature materials for non-ferrous metal foundries, glass, and industrial furnace builders — competes head-on with SILCA's CALCAST mould materials and furnace lining modules.
• BNZ Materials: North American producer of calcium silicate (Marinite, Calsil) and high-temperature insulation boards for industrial furnace and fire protection — comparable niche calcium silicate competitor with similar specification-driven sales model.
• Rath AG: Austrian manufacturer of refractory products, high-temperature ceramic fibre, and microporous insulation serving European industrial furnace and steel/foundry customers — mid-sized direct peer competing in similar specification-driven accounts.
• Alkegen (formerly Unifrax): Global leader in high-temperature ceramic fibre, bio-soluble AES fibres (Isolfrax), and microporous insulation for industrial furnace lining and fire protection — directly competes with SILCAWOOL, SILCAFLEX, and SILCAPOR product lines.

Broad incumbents

• Morgan Advanced Materials: Large diversified manufacturer of thermal ceramics, refractory products, and engineered thermal solutions through its Thermal Ceramics division — broad incumbent serving overlapping furnace, foundry, and fire-protection customers as SILCA.
• Saint-Gobain: Global building materials giant with high-temperature insulation and fire protection offerings (including Isover and certain refractory lines) — broad incumbent with overlapping channels in construction, industrial, and fire safety markets.

Market position

Strengths4 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights6 records

Customer concentration

• Facebookfacebook.com/silca.online.hfs
• LinkedInlinkedin.com/company/silca-gmbh

Compliance2 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles3 records

Subsidiaries5 records

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 SILCA GmbH