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Old Dec 13, 2009, 02:38 PM
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EDF Jet Jam 2015, May 28-31st
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United States, MO, St Charles
Joined Nov 2002
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Hi Arbo,
no problem with the questions. This stuff is new to me too.

I've never heard of Hydrocal, how does it work? You just put your positives on a board, make a box around it and pour straight on the waxed/pva positives?
For a start, go take a look at the Super Bandit thread. That's what got me fired up to give this a try.

Finish quality good on the molds?
Kind of depends on the surface quality of your plugs, but when I pulled my plugs out of the mold what I was staring at really reminded me of marble. Way different than the plaster surface I was expecting. Not that things are rough but I actually lost surface smoothness when I sealed the hydrocal with epoxy.

Is it mixed with epoxy or it's own solution?
Nope, use the Hydrocal to make the molds and then seal the surface with epoxy. I did that with the molds heated up and the epoxy just ran like butter.

Good for bigger parts or just small stuff?
I don't know yet but a 50 pound bag will go a long way and I have some big projects I want to try. I don't see any reason why it wouldn't work.

Dan Eaton
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