Development of o-ring substitute in Antenna Casing

  • Joining and sealing o-ring substitute solution for antenna casing in external environment

    Our customer required a more manufacturing-friendly 0-ring substitute component to seal a microwave broadband antenna casing. The component was to replace the existing large o-ring that was awkward and time consuming to apply; the aim being to improve their assembly process without loss of performance.

    We developed and prototyped the component using a neoprene foam material laminated with a double sided adhesive tape, die-cut and presented in the required format, for reliable bonding and sealing and ease of application.

    Read about this project in more detail below.

    Double sided materials Foam and rubber materials
  • O-ring substitute project requirements
    1. Part must withstand IP67 (dust and water international protection rating)
    2. Part must be conformable for sealing purposes, but not crushing so not to breach IP67
    3. Part must withstand harsh environments
    4. Part must be easy to handle for assembly
    Our solution
    1. We specified a closed cell foam and 3M adhesive tape 9088, which we laminated onto both sides of the foam. Both materials were suitable for extreme environmental conditions
    2. Based on customer drawings, we provided several rounds of samples to support environmental testing
    3. Final production parts were supplied as single pieces, with easy peel tabs to aid application
    Key benefits
    1. New component and design achieved the same performance as the o-ring design
    2. Customer achieved simplified and improved casing design
    3. Assembly times were reduced
    4. Adhesive component enables easier in-field replacement of gasket
    Benefits of tape Benefits of customised tape
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