Is there a low cost finish that can be applied to the inside walls of a cast Aluminum chamber, designed for chemical etching and plasma process, which will help prevent porosity and increase vacuum integrity?
Michael D Morgan - St. Petersburg, Florida, USA
Loctite is probably the leader in providing sealants for casting porosity. They offer a number of products, but in general they are based on low viscosity, anaerobic resins similar to their adhesives and threadlocking compounds. I recommend visiting their website and discussing the application with them further.
Toby Padfield - Troy, Michigan
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