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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?
FFKM - SIMRIZ® – Perfluoroelastomer
With Simriz® perfluorelastomers, 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.
Through the use of perfluorinated, completely hydrogen free monomers, combined with the appropriate compounding and processing technologies, it is possible to produce materials with rubbery-elastic qualities and a high media and temperature resistance.
Simriz stands out for its broad chemical stability, similar to that of PTFE, combined with the rubbery-elastic qualities of an elastomer. They are used wherever extreme safety standards are in force and high maintenance and repair expenditures exceed the costs of the seals.
The corresponding requirements are found in the chemical sector as well as the oil production and processing industries, appliance and vehicle manufacturing, and the aerospace industry. The special compounds Simriz 491 and Simriz 495 are available for those applications. Besides Simriz compounds for standard and high-temperature applications, versions with FDA¹ and USP Class VI² certifications like Simriz 494 and Simriz 506 are available. They are designed to be ideal for use in food and pharmaceutical production.
¹ The American “Food and Drug Administration” is the official United States agency responsible for food monitoring and the approval of(USP) medicines.
² The American pharmacopoeia
Related Documents
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Sealing Technology Manual for the Process Industry
Sealing solutions specially developed for the process industry in accordance with hygienic design and materials with industry-specific approvals. -
FFKM Simriz® High Performance Material in Extreme Conditions
Unique Material Structure Provides Reliable Sealing Performance in All Environments.
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Simriz® 134
Simriz® 134 performs well in a wide variety of harsh chemicals. Its outstanding resistance against rapid gas decompression (RGD) makes Simriz® 134 the perfect match for high pressure gas applications. -
Simriz® 481 - Low Temperature FFKM Material
Simriz® 481 performs well in a wide variety of harsh chemicals. Its outstanding low temperature performance makes the Simriz®481 the perfect match for nearly every application in the chemical process industry especially where low temperatures are expected. -
Simriz® 484 - Food & Beverage Applications
Simriz® 484 performs well in a wide variety of harsh chemicals as well as at high temperatures. Also Simriz® 484 is FDA compliant and USP class VI compliant, making it the perfect match for any Food & Beverage and Pharmaceutical application. -
Simriz® 485 - General Purpose
Simriz® 485 performs well in a wide variety of harsh chemicals as well as under overheated steam and hot water conditions. -
Simriz® 486 - Pharmaceutical Applications
Simriz® 486 performs well in a wide variety of harsh chemicals as well as at high temperatures. Additionally, Simriz® 486 is FDA compliant and USP class VI compliant, making it the perfect match for any Food & Beverage and Pharmaceutical application. -
Simriz® 498 - Outstanding Performance
Simriz® 498 is the ultimate FFKM material. Its unique patented material structure provides an outstanding long-term performance in nearly every environment. No matter if it’s extreme temperatures up to 325°C or harsh chemicals or even overheated steam and hot water. Simriz® 498 is the best match. -
Simriz® 501 & Z7257 - Permium Aerospace
With even greater performance results than the well-known Simriz® Z7257, Simriz® 501 marks our next generation Aerospace Simriz® material while providing continued availability of Simriz® Z7257. -
Simriz 506 - White perfluoroelastomer
Simriz® 506 is the new white perfluoroelastomer (FFKM) from Freudenberg Process Seals, which has been specially developed for the demanding requirements of the pharmaceutical industry, such as extremely aggressive solvents.
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