FAQ

What are the operating temperatures for treated surfaces?

30 Jul 2025

Maximum temperatures usually will be dictated by the construction material (glass, stainless steel, etc.), not by the surface treatment. In general, temperatures should not exceed those listed in Table I. Temperatures greater than 450°C for Sulfinert or Siltek treated surfaces or greater than 600°C for Silcosteel or Silcosteel-CR treated surfaces can be used under certain conditions. Heat treatment of parts before applying a Silcosteel or Silcosteel-CR coating extends the maximum temperature limit. Please contact technical support at (800)356-1688, ext. 4 for additional information.

Table I: Coatings are stable to the following temperatures in an inert atmosphere

Sulfinert450°C
Siltek450°C
Silcosteel600°C
Silcosteel-CR600°C

Author

  • Restek Corporation

    Restek is a leading provider of chromatography columns, accessories, and certified reference materials. Trust Restek for reliable, high-quality analytical solutions.

    View all posts
GNOT5194