DEMGY : Your High-Performance Polymer distribution expert

DEMGY Expertise at the service of Industrial Innovation

DEMGY Group, European leader in high-performance plastic processing, is the partner of choice for demanding industrial engineers. For nearly 80 years, we have been developing unique expertise in the design, transformation and distribution of high-performance plastics for the most demanding sectors: aeronautics, space, defense, automotive, medical and energy.

A differentiating consulting approach

DEMGY's strength lies in its integrated consulting approach: our materials engineers support your R&D teams from polymer selection to process optimization. This in-depth technical expertise has earned us the trust of world leaders such as DuPont and Drake Plastics LTD co. to distribute their most advanced High Performance Polymers.

DuPont Vespel® : Polyimide excellence for 20 years

Only authorized distributor in France - A relationship based on trust

DEMGY has been the authorized DuPont Vespel® distributor in France for almost 20 years, in recognition of its technical expertise and ability to support the most critical applications. This exclusive partnership enables us to offer

In-depth technical advice on all Vespel® grades
Permanent stock of semi-finished products (logs, tubes, sheets or blanks)
Application support from our specialized engineers
Customized solutions tailored to your industrial constraints

The exceptional properties of Vespel®

DuPont Vespel® polyimide meets the most complex technical challenges.

Thermal performance :

Continuous use up to 320°C
Resistant to extreme thermal exposure
Outstanding dimensional stability (close to or identical to that of metals).

Mechanical properties :

Excellent coefficient of friction (0.05-0.25)
Exceptional wear resistance
High mechanical stress resistance

Critical applications :

Aerospace bearings and sealing rings
High-temperature pump components
High-performance electrical insulators
Premium automotive wear parts

Drake Plastics LTD co. Innovation and ultra-high performance

A Transatlantic Strategic Alliance: Liberty Alliance

The strategic partnership between Drake Plastics LTD co. and DEMGY via the Liberty Alliance revolutionizes access to ultra-high-performance polymers in Europe. This collaboration makes it possible to offer :

Advanced extrusion technologies:

Seamless Tube®: seamless tubes for critical applications
Extruded sealing segments: customized solutions
Complex shapes in Torlon®, PEEK and Ultem®.

Competitive advantages:

A wider range of formats for semi-finished products and processed materials than the competition
Short lead times thanks to dedicated partnership stocks
Drake technical support via our DEMGY teams

Drake's ultra-performance polymer range

Torlon® PAI: Metal alternative for aggressive environments
PEEK expertise: High-temperature structural applications
Ultem PEI: dimensional stability at high temperatures
RYTON PPS: electrical insulation

DEMGY consulting expertise: your competitive edge

Integrated design office

Our 15 materials and process engineers will support you in :

Design phase :

Optimal material selection according to specifications
Modeling of mechanical and thermal behavior
Choice of optimized processing method to achieve maximum performance at controlled cost.

Industrialization phase:

Validation of transformation and assembly processes
Testing and qualification to industry standards
Supplier qualification support

Production monitoring :

Enhanced quality control
Full material and process traceability
Reactive technical support

Sectors of Excellence

Aerospace & Defense :

EN9100, NADCAP, AQAP 2110 certifications
Critical engine and structural components
Lightweighting solutions

Automotive Premium :

IATF 16949 certification
High-temperature engine parts
Performance braking systems
Transmission components

Medical & Pharmaceutical :

ISO 13485 certification
USP Class VI biocompatibility
Gamma/ETO sterilization
Implantable devices

Advanced Technical Services

Certified Materials Laboratory

Mechanical testing to ASTM/ISO standards
Thermal analysis DSC, TGA, DMA
Tribological characterization
Chemical resistance validation

Rapid Prototyping

High-precision 5-axis machining
Technical polymer 3D printing
Qualified small series

The Liberty Alliance: redefining industrial standards

This DEMGY-Drake Plastics LTD co. transatlantic alliance is transforming access to ultra-high-performance polymer technologies:

Shared innovation :

Co-development of new solutions
Two-way technology transfer
Joint application research

Extended market coverage :

Europe/North America strategic stocks
Multilingual technical support
Integrated intercontinental logistics

Choosing DEMGY: A guarantee of performance

Quality commitments

✓ Certifications: ISO 9001, ISO 14001, EN9100, AQAP 2110, IATF 16949, ISO 13485

✓ Full traceability of raw materials and processes

✓ Systematic testing to customer specifications

✓ Technical support for critical applications

Competitive advantages

Reactivity: permanent stocks + express production
Expertise: 80 years of experience in high-performance polymers
Innovation: Technology watch and continuous R&D
Proximity: Dedicated technical teams for each sector

Conclusion: DEMGY, your Strategic Partner

When you choose DEMGY as your authorized DuPont Vespel® distributor and Drake Plastics LTD co. partner, you benefit from expertise that is unique in Europe. Our integrated consulting approach, advanced technologies and network of strategic partnerships make us the ideal partner for your most ambitious technical challenges.
Contact our experts to study your applications and discover how our high-performance polymer solutions can optimize your industrial performance.