General Category > General Discussion

Pewter moulds

<< < (2/3) > >>

bodrighywood:
I have some Celtic seals that I want to cast in pewter and use as medallions on goblets or bowls. Plasticine would be ideal as I can imprint the seal into it. I read that the melting point of plasticine was a good few degrees higher than pewter which is around the 140 degree mark. Using wood either limits you to simple shapes or involves a lot of fancy carving which would take ages and boost prices through the roof. As far as I cantell there is no reference to it on the forum. I may have an answer from someone. If so watch this space LOL.

Pete

thebowlerhattedturner:
Hello Pete,
              something I have done before now is make a dough with flour and water , add the imprint and bake.
regards
john BHT

malcy:
You can make a mould using curable silicone available from somewhere like Hobbycraft. Dentists use silicone like this for teeth moulds as it sets very quickly and can be removed from the object in just a few minutes. I am pretty certain that this will stand up to molten pewter. Malcolm.

Paul Hannaby:
The casting pewter I use has a melting point of around 230C so I don't think I would want to rely on a plasticine mould.

bodrighywood:
Paul: I better check my facts a bit if 240 is the case as that is a heck of a lot more than I had researched. I agree, plasticine at that temperature may be a tad risky LOL.

Pete

Navigation

[0] Message Index

[#] Next page

[*] Previous page