AP 208

  • Excellent resistance to hot water and vapour
  • #Good resistance to a multitude of acids, alkaline solutions and oxidising agents
  • #Excellent resistance to ageing and ozone
  • #Good low temperature flexibility
  • #Good resistance to aqueous media

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AP 208 is an EPDM rubber compound specifically designed for hydrogen applications. It offers excellent resistance to hot water, steam, and a wide range of aqueous media, as well as good resistance to acids, alkaline solutions, and oxidising agents. The material demonstrates strong resistance to ageing and ozone, ensuring long-term durability. It maintains flexibility at low temperatures down to -55 °C, making it suitable for extreme environments. However, it has limited resistance to plant and animal oils and fats. AP 208 passes H2/hydrogen tests with good permeation coefficients, highlighting its effectiveness in hydrogen sealing. This product is ideal for applications requiring high resistance to aqueous media and reliable performance in hydrogen environments.

Use Cases

  • use in hydrogen applications
  • #wherever high resistance to hot water and water vapour is required

Capabilities

  • Passes H₂/hydrogen test with good permeation coefficients (1317 N cm³ mm m⁻² day⁻¹ bar⁻¹)
  • #Excellent resistance to ageing, ozone, and aqueous media
  • #Maintains flexibility down to −55 °C
  • #Operates up to +140 °C in air
C. OTTO GEHRCKENS GMBH & CO. KG C. Otto Gehrckens is a company specializing in advanced materials for the hydrogen economy, focusing on developing innovative solutions for hydrogen storage and transportation. They produce high-quality o-rings and seals to ensure reliable containment of hydrogen gas. Their expertise supports the transition to cleaner energy systems.

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