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Ted Mooney, P.E. RET
Pine Beach, NJ

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Aluminum Cast Finish for Plasma Process Chamber

Q. 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
2003

Loctite 270
thread locking adhesive

on eBay or

Amazon

(affil links)

A. 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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