Casting with potting compund

Does anyone know if you can cast epoxy potting compound?

I would like to make a silicone mold or something and insert a part with the epoxy and be left with a free-formed encapsulated part. Has anyone done anything remotely like this?

I’m a little bit afraid to try with regular casting epoxy because potting compound is made especially to be non-corrosive and stable for electronic etc.

http://www.electrolube.org/technical-articles/2013/09/27/resins-for-potting-and-encapsulation/

Pretty good read. Casting is certainly possible, but you’ve got to find the right mix of resin and hardener.

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