Two-day Seminar

Testing of Elastomer Seals

About the Seminar

In this seminar, our seminar instructor Bernhard Richter will introduce you to the most important test methods for incoming goods and qualification tests. Over a total of two days, you will learn how the properties and media resistance of elastomers are determined and how the components themselves are tested.


You will also get an overview which extended material tests are useful for seals. A guided tour through our accredited test laboratory in Großbottwar completes the seminar and gives all participants the opportunity to familiarise with the actual application of the test methods.

Upcoming seminar date: 03 – 04 December 2024
Seminar date in 2025: 02 – 03 December 2025
Seminar fee: 1,195 Euro + VAT
Venue: Training centre Elastomer Training Richter, Reinhold-Würth-Straße 5, 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. 5.00 p.m. incl. coffee breaks and lunch break, dinner from 6.00 p.m.
Dimensional and visual inspections
  • Definition of the different types of defects in accordance with ISO 3601-3
  • Examples and practical exercises
  • On-site demonstration of a test machine
  • Contact and optical measurement methods
Hardness, density and compression set tests
  • IRHD and Shore hardness, standard hardness and hardness of finished parts
  • Density measurement – simplest control value of the recipe
  • Compression set – methods and scope of application
Tensile test and tear propagation resistance
  • Tensile test on shoulder bars and finished parts
  • Causes of atypical variances
  • Tear propagation resistance DIN, ISO and ASTM test methods
Resistance tests and artificial ageing
  • Types of impacts from surrounding media
  • Definition of the term “resistance”
  • Influence of the test conditions
  • Resistance tests and artificial ageing
Discussion and end of day 1
Dinner and exchange of experiences

Day 2

Seminar duration on second day 9.30 a.m. to approx. 3.15 p.m. incl. coffee breaks and lunch break
Laboratory tour with practical explanations
  • Start of the day at the O-Ring Prüflabor Richter in Großbottwar
Transfer to the training centre in Ilsfeld
Advanced materials testing
  • Cold test methods (TR10, DSC, CS and DMA)
  • Ozone testing
  • Analytical test methods (TGA, FTIR, GC-MS, SEM-EDX)
  • Continuous and discontinuous compressive stress relaxation
Requirements for an order specification
  • Definition of compound constancy
  • Requirements for data sheets
  • Drawings
  • Discussion of different types of order specifications
  • Permissible storage times
Discussion and end of the seminar