High temperature capabilities of Polyimide fasteners

Q: Need help with specific needs regarding Polyimide fasteners and their high temperature capabilities

A:   This Italian company was developing a new client oven.  They were interested in Polyimide fasteners and their high temperature capabilities. In particular they needed:

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

Polyimide materials like Vespel fasteners are a good thermal and electrical insulator for this application. It is heat resistant to 300°C (572°F) continuous use and 500°C (932°F) intermittent. Vespel fasteners also has a 3.55 dielectric constant at 1MHz. The only drawback for using Vespel fasteners 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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