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withered_preacher
I assumed the mould goes in the vacuum chamber as well so the bubbles are sucked out after the pour while in situ?
I know nothing of silicone but have seen something similar for resin pouring in wood turning vids where a vessel is filled with resin and wood then the whole thing put into a vacuum chamber but maybe the process is different for silicone.
In other news, I got a introductory glass blowing lesson for Xmas from my partner, so freaking cool, can’t wait.