With the melt temp of Pewter at 400 degrees Farenheit, I do believe that silicon
rubber would work. I was using silicon rubber for pouring Low melt alloys
containg tin bismuth at approximately 310 degrees. I used a silicon rubber mold
and put it immediately after pouring, into a pressure pot at about 65-75 pounds
(paint pressure pots are readily available from Paint supplies or Graingers.)
eliminated any air bubbles in your part.
Troy, MI, 48084
David Bolack wrote:
> Excuse this bit. I come from way left field of the engineering industries. :)
> Not having much luck investigating the different rapid
> prototyping processes out there, I'm turning here for some advice.
> We're investigating using rapid prototyping to create masters for molds
> for pewter figures. It's a fascinating technoology that looks like it
> could be used in this capacity, possibly far more cheaply than hand
> sculpting. What I can't quite find out is what processes would survive the
> 400 F temperatures for making our molds.
> Anything that will take detail well and survive making the mold would be
> acceptable. Low cost, naturally, is a plus. :)
> Any pointers or direct advice would be greatly appreciated.
> For more information about the rp-ml, see http://ltk.hut.fi/rp-ml/
For more information about the rp-ml, see http://ltk.hut.fi/rp-ml/
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