Freudenberg Sealing Technologies
Elastomer Materials

Freudenberg Performance Sealing Materials

“Materials” are the foundation of our technology. Every day, people deal with products that possess seals and they generally know very little about the materials with which they are made. For example, plastic is a comparatively new material and has long been considered to be a “wonder substance”. But why is plastic so flexible and how are the various mixtures differentiated from one another? When is a silicone seal better than one made of polyurethane or rubber?



Thanks to its excellent stability in water and aqueous solutions, EPDM is one of the most widespread materials in the food and pharmaceuticals industry with its share of approx. 70 percent.

Fluoroprene XP 41 O-Ringe

Fluoroprene® XP

Fluoroprene® XP is the premium allrounder amongst our quality materials, which unifies the advantages of EPDM and FKM particularly cost-effectively.



ACM elastomers are made of polar acrylic acids. As polar materials, they display good resistance to high-additive lubricating oils.



With Simriz® perfluoroelastomers, Freudenberg Sealing Technologies is offering the processing industry the high-end solution in materials technology. In terms of its resistance to media and temperature, Simriz® is suited to the most demanding applications.



Because of their wide range of compounding possibilities, FKM materials from Freudenberg Sealing Technologies offer great flexibility to suit the respective customer-specific application.



Our HNBR is a further development of normal NBR polymers and thus opens up a wider range of possible applications for the processing industry than the classic NBR materials.

Red rubber boots in the mud


NBR is a cost-efficient material solution and features good cold flexibility with a low acrylonitrile content, elastic properties and tough wear resistance.

NR - Natural Rubber


Elastomers made of pure natural rubber have extreme stretchability, ranging from 700 to 1000 percent. At the same time, an elastomer is nearly non-compressible – it does not allow itself to be compressed – only displaced.

PA Polyamide


Polyamides offer high strength, rigidity and durability with good chemical resistance and processability. They feature high resistance to wear and good anti-friction properties.

Technical Thermoplastics


PAI is a thermoplastic that has high strength and stiffness up to 275°C while offering outstanding resistance to creep, wear, and chemical attack.

Technical Thermoplastics


PEEK offers similar chemical stability to PTFE, however has better mechanical properties.

POM Polyoxymethylene


Polyamides especially stand out for their resistance to wear, their good damping capacity, and emergency running properties, along with a low tendency to creep.



PTFE from Freudenberg Sealing Technologies is very impressive with its great media stability and can be optimized for the respective application by blending it.



94 AU 30000 is superior to other polyurethanes in all areas. It offers a significantly longer service life and even withstands wide temperature fluctuations. Its range of application is between –50 °C and 120 °C.



VMQ silicone elastomers are used in demanding thermal applications, and, due to their purity, are especially suited for hygienic uses in the food and pharmaceutical industries.

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