Quote:
Originally Posted by John McM
The first page of this thread specifies Dow 111 for O rings. Is Dow 55 a general substitute for Dow 111 or is Dow 55 specific to this application?
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I can't speak intelligently about Dow 111 because we don't use it.
We chose Dow 55 because of it's military application (testing and continued use). We buy it as military surplus because when we started using it, Dow 55 was not available in retail packaging.