Duresco

What Duresco does

Duresco GmbH is a privately held Swiss specialty manufacturer of thermosetting epoxy moulding compounds, headquartered in Witterswil, Canton Solothurn. Founded in 2003 via a management buyout and carrying more than 35 years of accumulated formulation expertise, the company develops and produces high-performance epoxy moulding compounds (the NU product series, plus specialty 3D-MID and low-ionic content grades) that are processed by customers via transfer and injection moulding to encapsulate electronic and electromechanical components.

The technical proposition centres on materials engineered for demanding operating environments: thermal conductivity up to approximately 2.4 W/mK, isotropic coefficients of thermal expansion from 13 ppm/K with mould shrinkage near 0.3%, demonstrated resistance to aggressive media (water-glycol for 2,000h at 135°C; AdBlue for 3,000h at 80°C), low-ionic formulations for sensitive electronics, and laser-structurable 3D-MID substrates. Duresco holds IATF 16949, ISO 9001/14001/45001, UL Listing E66640, and EN 45545-2 certifications, qualifying its materials for automotive, electrical, medical, automation, drives, and electromobility applications.

Duresco operates a direct sales-led B2B model from a single Swiss production site, selling materials in project-tailored volumes to international OEMs and Tier-1s including maxon, ebm-papst, Bürkert, IMI Buschjost, and AdTime Sensors. Revenue is generated through hardware sales of proprietary epoxy moulding compounds, supported by in-house R&D, application engineering, and a network of research partnerships with German institutions (FAU Erlangen-Nürnberg, Hahn-Schickard, OTH Amberg-Weiden, the 3D-MID research association). The company has no subsidiaries, no disclosed funding history, and no public-market listing, operating as an independent, management-led specialty materials supplier.

Name

Duresco

Legal name

Duresco GmbH

Website

https://duresco.ch

Company type

Private

Founded year

2003

Operating status

Operating

Headcount range

11–50 employees

Short description

Duresco GmbH is a privately held Swiss manufacturer of high-performance epoxy moulding compounds (thermosets), supplying proprietary NU-series materials directly to industrial OEMs in sensors/electronics, electrical engineering, medical technology, automation, drives, and electromobility from its Witterswil headquarters.

Ownership category

akta.pro rank

Headquarters

HQ city

Wilderswil

HQ country

Switzerland

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. High-Performance Thermosetting Plastics (Epoxy Moulding Compounds): Manufacture and sale of proprietary epoxy moulding compounds (thermosets) under the NU product line (NU 461, NU 505, NU 510-1, NU 514, NU 3723, NU 4414, NU 5759, NU 6110, NU 6200, NU 6210, NU 6640 X). Products are sold as materials to customers who use them in injection or transfer moulding processes. Revenue is generated through product sales with volumes tailored to customer requirements.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels5 records

Core offering

Duresco develops and manufactures high-performance epoxy moulding compounds (thermosetting plastics) under the NU product line, processed via transfer moulding and injection moulding. The compounds are engineered for electrical insulation, thermal management, chemical resistance, and dimensional stability to encapsulate electronic and electromechanical components in demanding applications. Duresco serves customers from product idea through series production, with an in-house laboratory and technical centre for custom material development.

Product overview

Duresco develops and produces thermosetting epoxy moulding compounds for injection and transfer moulding applications. The product portfolio centres on the NU series of high-performance epoxy moulding compounds (NU 6640 X, NU 461, NU 505, NU 510-1, NU 514, NU 3723, NU 4414, NU 5759, NU 6110, NU 6200, NU 6210) which provide electrical insulation, dimensional stability, temperature resistance, chemical resistance, and thermal conductivity for encapsulation of electronic and electromechanical components. The offering is complemented by specialty materials including 3D-MID substrates for laser structuring applications and low-ionic content materials for sensitive electronics. These thermosets serve demanding applications in sectors including automotive (electromobility, AdBlue systems), medical technology, electrical engineering, automation, and drives across customers such as maxon, ebm-papst, Bürkert, IMI Buschjost, and AdTime.

Differentiator

Problem solved

Functional benefit

Products and services

• NU 6640 X Epoxy moulding compound specifically developed for applications with increased heat dissipation requirements, offering high isotropic heat dissipation, optimised cycle time, and processing under standard conditions. Used for stator, rotor, and electronics encapsulation.
• NU 461 / NU 461 R Epoxy moulding compound with good chemical and crack resistance. The NU 461 R variant is engineered for solenoid applications in AdBlue injection systems in automotive applications.
• NU 505 Epoxy moulding compound for industrial applications.
• NU 510-1 Epoxy moulding compound for industrial applications.
• NU 514 Epoxy moulding compound for industrial applications.
• NU 3723 / NU 3723 N Epoxy moulding compound demonstrating excellent resistance to water-glycol mixtures after 2,000 hours storage at 135°C in a 50:50 water-glycol mixture. The NU 3723 N variant is tailored for cooling applications in electric motors.
• NU 4414 Epoxy moulding compound for industrial applications.
• NU 5759 Epoxy moulding compound for industrial applications.
• NU 6110 / NU 6110 V Epoxy moulding compound with flame retardancy (UL 94 V-0), crack resistance, good flowability, and heat conduction. The NU 6110 V variant is used in Bürkert TwinPower solenoid valves and AdTime sensors.
• NU 6200 Epoxy moulding compound for industrial applications.
• NU 6210 Epoxy moulding compound for industrial applications.
• 3D-MID Materials Laser-structurable epoxy moulding compounds for three-dimensional mechatronic integrated devices (3D-MID), enabling injection-moulded substrates with higher integration of electronic circuitry, optimal copper coating adhesion, and fine structure capability (pitch <120 µm).
• Low-Ionic Content Materials High-purity epoxy moulding compounds with reduced ionic content for encapsulation and protection of active electronic components, processable via transfer and injection moulding with good flow properties.

Quantifiable outcome

• Reduced energy consumption by up to 75% in Bürkert TwinPower solenoid valves through superior double coil concept enabled by Duresco NU 6110 V moulding compound.
• +5 more outcomes

Named customers5 records

Segments6 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature6 records

Partnerships

Seven partnerships are on record, tiered core and minor.

• Forschungsvereinigung Räumliche Elektronische Baugruppen 3-D MID e.V.coreStrategic or Co-development PartnerDuresco collaborates with the 3D MID research association to develop materials for three-dimensional mechatronic integrated devices, where epoxy substrates serve as carriers for laser-structured electronic circuits.
• Hahn-Schickard-Gesellschaft für angewandte Forschung e.V.coreStrategic or Co-development PartnerCollaboration with Hahn-Schickard, a German applied research institute, for the development of advanced thermoset formulations and moulding processes.
• Ostbayerische Technische Hochschule (OTH) Amberg-WeidencoreStrategic or Co-development PartnerPartnership with OTH Amberg-Weiden university of applied sciences for joint research and development in thermoset materials and manufacturing processes.
• Lehrstuhl für Fertigungsautomatisierung und Produktionssystematik (FAPS), Friedrich-Alexander-Universität Erlangen-NürnbergcoreStrategic or Co-development PartnerCollaboration with the FAU Erlangen-Nürnberg chair for manufacturing automation and production systems, focusing on advanced thermoset processing technologies.
• Kunststoff Institut LüdenscheidminorStrategic or Co-development PartnerTechnical cooperation with Kunststoff Institut Lüdenscheid for plastics processing expertise and testing services.
• Kunststoff Institut SüdwestminorStrategic or Co-development PartnerPartnership with Kunststoff Institut Südwest for plastics research and development support.
• Verband der Schweizer KunststoffindustrieminorOthersMembership in the Swiss plastics industry association for industry representation and networking.

Scale indicators3 records

Recent moves8 records

Expansion highlights5 records

Direct peers

• Olin Corporation: Major global producer of epoxy resins via its Epoxy business, supplying formulation and molding-compound markets including electrical laminates, adhesives and coatings — comparable to Duresco in epoxy resin chemistry and downstream thermoset applications.
• Sumitomo Bakelite: Japanese specialty plastics manufacturer producing phenolic and epoxy thermosetting moulding compounds for automotive, electrical and electronic applications — direct overlap with Duresco's thermoset encapsulation portfolio.
• Von Roll: Swiss-based specialist in electrical insulation materials and systems, including resins and encapsulation compounds for motors and transformers — geographically and technologically comparable to Duresco's Swiss epoxy encapsulation business.
• ELANTAS (Altana Group): Specialty division of Altana focused on electrical insulation materials, including epoxy-based potting and impregnation compounds for motors, transformers and electronics — a close functional peer for Duresco's encapsulation and insulation offering.
• Huntsman Advanced Materials: Global specialty chemicals company with an Advanced Materials division that formulates epoxy resins, adhesives and moulding compounds serving aerospace, automotive, electronics and industrial applications — directly overlapping Duresco's core epoxy moulding compound portfolio and end markets.
• Resonac (formerly Showa Denko / Hitachi Chemical): Major Japanese materials company producing electronic materials, encapsulants and epoxy moulding compounds for semiconductors, automotive electronics and electrical applications — directly comparable to Duresco in electronic-grade epoxy encapsulation.
• Weidmann Electrical Technology: Swiss-founded specialist in electrical insulation materials and transformer components, with overlapping customer base in motors, transformers and high-voltage applications — comparable specialty insulation/encapsulation materials supplier to Duresco.
• Westlake Epoxy (formerly Hexion): One of the world's largest producers of epoxy resins and specialty thermoset formulations, serving wind energy, automotive, electronics and coatings — overlapping Duresco's epoxy chemistry footprint and many of the same encapsulation use cases.

Broad incumbents

• Henkel: Global specialty chemicals incumbent offering a broad portfolio of adhesives, sealants and functional coatings including epoxy-based systems for electronics and automotive — overlapping with Duresco at the product and customer level but as part of a much larger, diversified portfolio.
• 3M: Diversified global materials company with specialty films, encapsulants and electrical insulation products serving automotive, electronics and industrial customers — adjacent to Duresco's encapsulation and insulation applications through a much broader portfolio.

Market position

Strengths5 records

Weaknesses4 records

Competitive moat5 records

Key risks5 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/duresco-gmbh

Compliance7 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles8 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 Duresco