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Frequently Asked Questions


Question: Are there other types of gasket material for CF flanges? (other than copper?)

Answer:

Yes. There are silver plated copper gaskets for those users that bake their vacuum systems to very high temperatures (>400 Centigrade). During the bake, the atmosphere side of a plain copper gasket can severely oxidize. When performing maintenance of that system, it is possible that particles of copper oxide can fall into the chamber. A silver plated copper gasket will not severly oxidize. There are also a few varieties of elastomer gaskets (usually made of Viton) that can be used in place of copper for temporary connections (i.e. Helium leak detection of the chamber during manufacture)


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