DIAMANT maintains the world

Safely built.
Well protected.
Intelligently refurbished.


BranchesFind the right product for your application


maintenance & RepairOur all-round service leaves nothing to be desired

Application service

Certified quality

Made in Germany      

DIAMANT POLYMER: Customised metal-polymer, polymer-composite systems and polymer infiltrates according to highest standards

As an internationally renowned manufacturer and full-service provider of polymer systems, DIAMANT Polymer GmbH offers innovative and high-quality solutions for industrial applications.

Our products preserve and protect assets and investments. For example, defective castings are not discarded as scrap material, but can be “rescued” and made usable by post-treatment with special polymer systems. Good for our customers and good for the environment. Follow us into a new future and discover the wide range of applications for polymer composite materials and the exciting world of technical impregnation and infiltration systems.

View Products

Products Here you can find our latest products.

View all Products


our ServiceFull service from a single source: product development, contract manufacturing, assembly & more

DIAMANT polymers are used, among other things:

  • for force-fit gap compensation of steel connections
  • for impregnation of leaking metal components
  • for wear protection of metal surfaces
  • for sealing thermally sprayed layers
  • for blow hole repairs on castings
  • for sealing and infiltration of 3D printed parts in the field of additive manufacturing
  • as high performance body fillers

Our services are as diverse as our products. As a full-service provider, we supply you with everything from a single source, including product development in our own laboratory, technical consulting and installation services. Are you looking for contract manufacturing or a private label product? Here, you are also in good hands with us. We will be happy to support you with the realisation. Benefit from more than 100 years of experience in handling and manufacturing polymer systems.

Our Service

unsere Branchen


Mechanical Engineering

Sophisticated and mature solutions for µm-precise molding, high-precision sliding and fine adjustment in mechanical engineering.


3D Printing

Post-processing solutions for additive manufacturing with DIAMANT polymer systems.


Thermal spraying

Sealer for thermally sprayed coatings. Lasting protection for your components.


Foundry Industry

Reduce rejects and increase efficiency with DIAMANT products for the post-treatment of cast parts of all kinds.


Construction industry

High-performance polymers for demanding tasks in steel and bridge construction.


Maintenance & Repair

Wear protection and metal repair with polymer composite systems by DIAMANT.



DIAMANT – Manufacturer with certification

We know what we’re doing. And this has been the case for over 130 years! Through continuous research and development, we now offer the best polymer-based products in terms of function, technology and quality. After the first metal polymer, MM1018, with a general building authority approval, our quality management has been certified according to DIN EN ISO 9001:2015 and ISO 14001.


DIAMANT Polymer – news“Quality is when the customer comes back – not the product”.

You can also benefit from metal-polymer systems and the many years of experience of DIAMANT Polymer GmbH. Our products are ideal for occasional small repairs, large-scale repairs, the infiltration of nanoscale ceramic structures and the force-fit connection of large steel structures: Our products are as versatile and individual as the areas in which they are used every day.


DIAMANT Polymer GmbH offers you:

  • competent advice from experienced specialist staff
  • customised product development
  • direct on-site assembly
  • worldwide available product range
  • quality “Made in Germany”
  • tradition, innovation and highest quality.

Would you like to learn more about the advantages of our products and services? Contact us now. Our experienced staff will be happy to help you.

Contact us Learn more about DIAMANT


Membership and partnerships

Diamant is a member of associations and maintains close partnerships with other companies.

GTS LogoUnternehmerschaft Niederrhein Logobdgu Logo VDM Logo


Do you have any questions? We will be happy to help you.

Would you like expert advice on which of our products is best suited for you? Then simply contact one of our service technicians! We will be happy to help you, whether you contact us by phone, fax or mail.

DIAMANT Polymer customer service

+49 2166 9836-0 Monday - Friday: 8:00 a.m. - 4:00 p.m.

How do you contact us?*

Newsletter Subscribe to our newsletter and receive product news directly by e-mail.