What ISO-Chemie does

ISO-Chemie GmbH is a German manufacturer of energy-efficient building sealing solutions and technical foam products, headquartered in Aalen, Germany, and operating from a single "Made in Germany" production site. Founded in 1977, the company designs and produces pre-compressed polyurethane (PUR) foam sealing tapes, multifunctional joint sealing tapes, EPDM (ethylene propylene diene monomer) membranes, window and facade connection films, in-front-of-wall window installation systems, and fire protection products, as well as a parallel line of custom technical foam parts (case inserts, logistics and transport packaging, presentation packaging, marking systems). The company has accumulated nearly 70 patent families over its operating history, with its flagship ISO-BLOCO HYBRATEC built on patent-pending HYFI-TECH hybrid technology that combines the air/rain tightness of window connection films with the expansion force of pre-compressed PUR foam and is certified as a Passivhaus component. The ISO-TOP WINFRAMER system, available in standard Type 1 and E30 fire-rated variants, addresses thermal bridging and load-bearing requirements in facade installations.

The company serves three primary customer groups: trade professionals (window installers, facade contractors, and craftsmen), specifiers (architects and specialist planners who need BIM-ready product data), and building owners and developers (including housing associations and modular house builders), with a secondary industrial customer base for custom foam parts. ISO-Chemie distributes through a hybrid channel model combining owned regional sales offices and logistics centers in at least seven European geographies (UK, France, Poland, Italy, Spain, Scandinavia, Balkans), a 24/7 ISO-PORTAL e-commerce platform, BIM data delivery, and overseas partner companies, supplemented by technical consulting, RAL-certified training programs, and CPD presentations. Pricing is quote-based and not publicly disclosed; revenue derives primarily from one-time product sales with a smaller services stream.

ISO-Chemie is a privately held, family-owned business currently led by Managing Directors Josef Deiß and Dr. Martin J. Deiß, with no external venture capital, private equity, or acquisition activity disclosed. The company has been recognized with multiple international awards, including "Best Foam Product Manufacturer 2024, Europe" and "Top Company in Building Sealing Solutions in Europe 2024," and continues to invest in new product development, digital tooling, and European market expansion, including a recent successful trade show presence at Fensterbau Frontale 2026.

Name

ISO-Chemie

Legal name

ISO-Chemie GmbH

Website

https://iso-chemie.eu

Company type

Private

Founded year

1979

Operating status

Operating

Headcount range

51–100 employees

Short description

ISO-Chemie GmbH is a German manufacturer of pre-compressed PUR foam sealing tapes, multifunctional joint sealing tapes, and in-front-of-wall window installation systems for energy-efficient building envelopes, serving installers, architects, and industrial customers across Europe.

Ownership category

akta.pro rank

Product category

Building Sealing and Insulation Products

NAICS

Adhesive Manufacturing (32552), Paint, Coating, and Adhesive Manufacturing (3255)

SIC

Adhesives & Sealants (2891), Plastics Foam Products (3086)

akta.pro primary industry

Tapes, Labels & Pressure-Sensitive Adhesives (IMAEAGAJ)

akta.pro secondary industries

Adhesives (Structural & Assembly) (IMAEAGAH), Industrial & Protective Thermoformed Packaging (Dunnage, Trays, Clamshells) (IMANAHAC)

Keywords

• Joint sealing tapes
• Window connection films
• Pre-compressed foam tapes
• Building insulation products
• Facade sealing systems

Headquarters

HQ city

Aalen

HQ country

Germany

HQ region

Europe

Offices8 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. Building Sealing Products: Sale of pre-compressed joint sealing tapes, multifunctional bands, window connection films, facade films, and accessories for window installation, solid construction, and facade applications. Products are sold directly through ISO-PORTAL e-commerce and regional sales offices.
2. Technical Foam Products: Custom foam parts for industrial applications including case/container inserts, logistics/transport packaging, presentation packaging, and technical applications.
3. Professional Services: Technical consulting, training programs, and on-site support services for product selection, planning, and installation.

Go-to-market motion1 record

Distribution channels5 records

Marketing channels8 records

Core offering

ISO-Chemie manufactures pre-compressed joint sealing tapes, multifunctional sealing tapes, window and facade connection films, and in-front-of-wall window installation systems (e.g., ISO-TOP WINFRAMER) for energy-efficient building envelopes. The company also produces custom technical foam parts for industrial packaging (cases/containers, logistics/transport packaging, presentation packaging) and technical applications, all 'Made in Germany' at the Aalen headquarters.

Product overview

ISO-Chemie is a manufacturer of energy-efficient and sustainable building sealing solutions and technical foam products. The company offers two main product lines: (1) Building sealing products including pre-compressed joint sealing tapes (Fugendichtband vorkomprimiert), multifunctional tapes (Multifunktionsband), ISO-BLOCO HYBRATEC with patented HYFI-TECH hybrid technology, ISO-BLOCO ONE self-adhesive tapes, window and facade connection films (ISO-CONNECT), in-front-of-wall installation systems (ISO-TOP WINFRAMER), PU foam, profile fillers, fire protection products (ISO-FLAME), and decoupling bands; and (2) Technical foam products including custom foam inserts for cases and containers, logistics/transport packaging, technical applications, complete packaging, presentation packaging, and sports/leisure/promotion foam products. The company also provides digital tools including the ISO-PORTAL for online ordering and BIM data, the ISO-App for product identification, and the ISO-TOP WINFRAMER STATIK-TOOL for structural calculations. All products are manufactured in Germany (Made in Germany).

Differentiator

Problem solved

Functional benefit

Products and services

• Pre-compressed Joint Sealing Tape (Fugendichtband vorkomprimiert)
• Multifunctional Tape (Multifunktionsband) Multi-functional sealing tape (3-in-1 weather sealing) for joint sealing applications in building construction, offering combined air-tightness, driving rain resistance, and thermal insulation in one product for window and facade installers.
• ISO-BLOCO HYBRATEC Multi-functional joint sealing tape 4.0 with patented HYFI-TECH hybrid technology combining the air and driving rain tightness of window connection films with the expansion force of pre-compressed PUR soft foam, achieving 100% air tightness, driving rain resistance over 1,200 Pa, Passivhaus component certification, and a 10-year functional guarantee.
• ISO-BLOCO ONE Self-adhesive weather-tight tape for window frames, BBA certified for the UK market, providing a single-product weather seal for installers.
• ISO-BLOCO 600 Premium Edition High-performance pre-compressed sealing tape designed for facades, with temperature change resistance up to -30°C for demanding climate conditions.
• In-Front-of-Wall Installation System (Vorwandmontage System) System for installing windows in front of the wall thermal insulation level, comprising the ISO-TOP WINFRAMER Type 1 (load-bearing bracket) and Type 1 E30 (fire protection) variants, BBA certified for the UK market.
• ISO-TOP WINFRAMER Type 1 Thermal insulating and load-bearing bracket support system for rapid in-front-of-wall window installation, BBA certified, validated by a weight test in October 2025.
• ISO-TOP WINFRAMER Type 1 E30 Variant of the in-front-of-wall installation system designed for fire protection facades with E30 fire rating.
• Window and Facade Connection Film (Fensteranschlussfolie und Fassadenanschlussfolie) Connection films used to seal the joint between windows or facades and the building structure, providing air-tightness and weather protection as part of the ISO-CONNECT family.
• ISO-CONNECT BLUE LINE Bio-based window connection foils offering sustainable sealing for both the interior and exterior sides of windows, designed for environmentally conscious construction projects.
• ISO-CONNECT EPDM EPDM-based sealing products for durable weatherproofing of window, facade, and roof joints.
• ISO-CONNECT VARIO Variable sealing tape for adaptable joint sealing applications, suitable for variable joint widths.
• Profile Filler (Profilfüller) Filler profiles for sealing profile joints in construction, used by window and door installers to close gaps in profile systems.
• Decoupling and Shim Band (Entkopplungsband und Vorlegeband) Bands for decoupling and shimming in construction sealing applications, used to decouple building elements and adjust tolerances.
• PU Foam and Accessories (PU-Schaum und Zubehör) Polyurethane foam products and accessories for sealing and insulation, complementing the pre-compressed tape and film range.
• ISO-FLAME Fire Protection Products Fire protection sealing products including ISO-FLAME BRICK S 90, ISO-FLAME KOMBI F 120, and ISO-FLAME PLUG S 90 for firestopping in buildings.
• Custom Foam Inserts for Cases and Containers (Schaumstoffeinsätze für Koffer und Behälter) Custom-cut foam inserts designed to protect equipment, tools, and products inside cases and containers, used by industrial manufacturers and OEMs.
• Logistics and Transport Packaging (Logistik- und Transportverpackungen) Foam packaging solutions engineered for logistics and transport protection of industrial goods.
• Technical Applications Foam (Technische Anwendungen) Custom foam solutions engineered for various technical industrial applications beyond packaging, including machine, automotive, and OEM uses.
• Complete Packaging (Komplettverpackungen) Full-service foam packaging solutions combining design, tooling, and production of complete packaging systems for industrial customers.
• Presentation Packaging (Präsentationsverpackungen) Foam packaging designed for product presentation purposes, including point-of-sale and gift-pack foam inserts.
• Sports, Leisure and Promotion Foam (Sport, Freizeit und Promotion) Custom foam products for sports equipment, leisure applications, and promotional items.
• Marking System (Kennzeichnungssystem) Foam-based marking and identification systems for industrial and logistics use.
• ISO-PORTAL Customer portal providing 24/7 online access to product ordering, order documents, price lists, planning and calculation tools, training clips, and BIM data for digital project planning.
• ISO-App (Mobile Application) Mobile application for finding and identifying ISO-Chemie sealing products, available on iOS App Store and Google Play.
• ISO-TOP WINFRAMER STATIK-TOOL Online static calculation tool for creating project-specific structural pre-analysis of load cases in in-front-of-wall window installation, supporting specifiers and installers with the WINFRAMER system.
• ISO-TOP SPRAY PRIMER Ozone-friendly spray primer used as an environmentally-friendly bonding agent for ISO-Chemie sealing products.

Quantifiable outcome

• Driving rain resistance: over 1,200 Pa (far above average)
• +2 more outcomes

Named customers8 records

Segments5 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Partnerships

One partnership is on record.

• ift Rosenheim GmbHcoreStrategic or Co-development PartnerPartnership for creation of ift-Montagepass (ift installation pass). Personal data (company, order data, name of person placing order) is transmitted to ift Rosenheim for creating the installation pass document. Data used exclusively for this purpose with option to withdraw consent.

Scale indicators5 records

Recent moves7 records

Expansion highlights6 records

Broad incumbents

• Sika AG: Global specialty chemicals leader with a broad construction-sealing portfolio (Sika Membranes, SikaTack, joint sealants) serving facade and window installation applications that overlap with ISO-Chemie's product lines.
• Hilti AG: Construction product and fastening systems major offering complementary facade/window installation systems and tools; competes for specification slots with building envelope and installation-system providers.
• Bostik (Arkema): Diversified adhesive and sealant manufacturer with construction-grade sealing tapes and foams that overlap with ISO-Chemie's window/facade sealing offering.
• Trelleborg AB: Engineered polymer manufacturer producing EPDM and foam-based sealing components used in building envelopes and facades, with overlap to ISO-Chemie's EPDM-based window sealing products.
• Würth Group: Large European construction trade supplier with an extensive own-brand sealing, adhesive, and tape range that is sold through the same installer and trade customer base as ISO-Chemie.
• Soudal: Largest independent European sealant, adhesive, and PU foam manufacturer, offering overlapping construction sealing and bonding products and competing for the same construction-trade channel.

Direct peers

• Tremco illbruck: Major European building sealing and bonding specialist (owned by Tremco CPG) that competes directly with ISO-Chemie in pre-compressed foam tapes, multifunctional sealing tapes, and window/facade joint sealing systems, serving the same installer/specifier customer base.
• Hanno Werk GmbH & Co. KG: German manufacturer of sealing tapes, foams, and window sealing components with overlapping product range (pre-compressed foam tapes, multifunctional tapes) and the same European construction customer base as ISO-Chemie.

Others

• DGNB (German Sustainable Building Council): Ecosystem partner rather than competitor; ISO-Chemie is a member and uses DGNB-aligned sustainability messaging to differentiate its sealing tapes in specifier channels.
• ISO-Chemie subsidiary: Not applicable.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat5 records

Key risks5 records

Key highlights7 records

Customer concentration

• YouTubeyoutube.com/@ISO-Chemie_DE
• LinkedInde.linkedin.com/company/iso-chemie-gmbh-d-a-ch
• Instagraminstagram.com/isochemie_de
• Xx.com/isochemie

Compliance17 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles4 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 ISO-Chemie