Posted by joew on February 04, 19100 at 10:08:20:

In Reply to: Re: seperator for cement casting posted by Robert Fida, www.wyominggold.com on February 04, 19100 at 09:37:39:

well, i dont see an obvious need for the fiberglass pattern. My assumption is that a sturdy pattern is required by some sort of tracing stylus.

Why not use plaster for the pattern? Why the need for fiberglass? i can see possible reasons but i'd be guessing.

Maybe i have it all wrong, so tell me, whats the purpose of the fiberglass step?

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