Two-day seminar

Elastomer Materials and Seals

About the Seminar

During the two seminar days, our trainer Bernhard Richter will provide you with basic knowledge of technical elastomer materials. You will learn more about the typical properties of the most important elastomer types and their use as seals.

We will also show you which factors have a significant influence on the function of the components in use. Finally, during a guided tour through our laboratory, we will explain the physical and analytical test methods used on site in our test laboratory in Großbottwar.

Upcoming seminar date: 05 – 06 November 2024
eminar dates in 2025: 20 – 21 May 2025 and 11 – 12 November 2025
Seminar fee: 1,195 Euro + VAT
Venue: Training centre Elastomer Training Richter, Reinhold-Würth-Straße 5 in 74360 Ilsfeld

Your Seminar Instructor

Dipl.-Ing. Bernhard Richter

After studying mechanical engineering at the University of Stuttgart, Bernhard Richter worked for a leading global O-ring manufacturer for over 12 years, the last 7 years of which as head of application technology, before founding the O-Ring Prüflabor Richter in 1996. Since then, he has passed on his knowledge in up to 30 seminars every year. His ability to explain even complex issues in a way that is easy to understand is particularly appreciated. Furthermore, he is not afraid to provide users with clear decision criteria. He has been an expert in the ISO working group for O-ring standardisation (ISO 3601) for more than 10 years and is well known for his numerous publications.


O-Ring Prüflabor Richter GmbH
Kleinbottwarer Str. 1, 71723 Großbottwar
TEL +49 (0) 7148 16602-0
FAX +49 (0) 7148 16602-299

The Seminar Programme

Day 1

Seminar duration on the first day 9.30 a.m. to approx. 6.00 p.m. incl. coffee breaks and lunch break, dinner from 6.00 p.m.
Introduction to elastomer materials
  • Structure of elastomers – difference to thermoplastics
  • Reasons for the variety of polymers
  • Influences of fillers and plasticisers
  • Influences of the cross-linking system and vulcanisation
  • Definition of high and low temperature limits
  • Media resistance of elastomers
Materials and properties – Part 1
  • General properties, practical aspects for users and the most common causes of problems with NBR, HNBR, FKM and FFKM elastomers, reference to the current PFAS topic
Materials and properties – Part 2
  • General properties, practical aspects for users and the most common causes of problems with EPDM, VMQ, FVMQ, CR, ACM and AEM elastomers
The most important seals simply explained
  • Funktionsweise von O-Ringen, Hydraulikdichtungen und Radialwellendichtringen
Dinner and exchange of experiences

Day 2

Seminar duration on the second day 8.30 a.m. to approx. 3.30 p.m. incl. coffee breaks and lunch break
Material approvals
  • Food approvals BfR XXI, EC1935, FDA and E3A-Sanitary
  • Biocompatibility approvals USP VI and DIN ISO 10993
  • Drinking water approvals UBA, W270 and international approvals
  • DVGW approvals DIN EN 549, DIN EN 681 and DIN EN 682, DVGW G5406
  • UL, BAM and Norsok approvals
  • Automotive OEM approvals
The most important test methods
  • IRHD and Shore A hardness
  • Density, compression set and tensile set
  • Tensile test and tear propagation resistance
  • Media and heat resistance tests
  • Cold resistance tests TR10, DSC and compression set tests
Lunch break and transfer to the O-ring testing laboratory in Grossbottwar
Laboratory guided tour
  • Explanation of the physical and analytical test methods used
End of the seminar