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Thanks for ripple cure


My thanks to the several responses to my problems with ripples when
using injection wax in an RTV mold. You were all correct in
diagnosing the problem: not enough heat. My problem was that I was
letting the mold sit with the wax copy inside far too long, so that
the mold was never really warmed up when injecting. Tonight I tried
making one copy after another, as soon as the wax in the sprue tip
looked solid, and it worked great.