Kemtron specializes in the manufacturing of customized O-rings. They are very durable, as the manufacturing processes consist of molding or extruded sections that are cut to length and vulcanize jointed. It ensures good shielding integrity. O-rings are made of various materials such as silicone, fluorosilicone and many other conductive fillers. Available fully customized sizes, and in small series.


  • Cost-effectiveness
  • No tool costs
  • Short delivery time
  • Better surface finish (zero flash)
  • Customized lengths
  • Available in small sizes; up to 10 mm inside diameter
  • Frequent tolerance for length and cross-sectional dimensioning

Available profiles:

  • Sponge
  • Hollow tube
  • Solid
  • D shape
  • Rectangular


  • Silver-plated aluminum in silicone or fluorosilicone
  • Silver plated copper in silicone or fluorosilicone
  • Silver plated glass in silicone or fluorosilicone
  • Nickel coated graphite in silicone or fluorosilicone
  • Pure nickel in silicone or fluorosilicone
  • UL94V0 grade of nickel coated graphite in silicone

Manufacturer’s website: