Vespel screws high temperature capabilities

Q: Polyimide / Vespel fasteners and their high temperature capabilities

A: This client is developing a new oven application and was interested in Polyimide fasteners and their high temperature capabilities. In particular they needed:

  • Usability to 300°C
  • Capability with metal connections
  • Heat and electric insolation
  • Used in a hot box of steel

Polyimide or Vespel fasteners are a good thermal and electrical isolator for your application. It is heat resistant to 300°C (572°F) continuous use and 500°C (932°F) intermittent. I also has a 3.55 dielectric constant at 1MHz. The only drawback for using polyimide is that it is an expensive option.

Here is a great video by DuPont on the heat resistance of polyimide compared to other polymers: http://www.dupont.com/products-and-services/plastics-polymers-resins/parts-shapes/videos/polyimide-heat-resistance-vespel.html

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