1967 Tiki mug mold - Collecting Tiki

S Saint-Thomas Member Knoxhell Joined: Sep 26, 2002 Posts: 39	S Saint-Thomas Posted posted on Mon, Jun 2, 2003 6:36 AM Molds are easy to make. Just be certain you use the right stuff. Plasters come in many flavors, and you want one with a high compression like Hydrocal. If you want to keep that 1967 mold, don't use it. Every time the mold gets wet it will be degraded. A typical mold lasts about 100 castings or less. Instead, make a casting from that mold, then make a new mold. Also, plaster molds need to be kinda wet to work properly. If my mold is completely dry, I will dust it with Talc (magnesium), cast once, then trow away that casting. The mold should be good to go at this point. Just don't cast more than a few times (3 or 4) in a day or it will be saturated and easily damaged.

Molds are easy to make. Just be certain you use the right stuff. Plasters come in many flavors, and you want one with a high compression like Hydrocal.
If you want to keep that 1967 mold, don't use it. Every time the mold gets wet it will be degraded. A typical mold lasts about 100 castings or less. Instead, make a casting from that mold, then make a new mold.
Also, plaster molds need to be kinda wet to work properly. If my mold is completely dry, I will dust it with Talc (magnesium), cast once, then trow away that casting. The mold should be good to go at this point. Just don't cast more than a few times (3 or 4) in a day or it will be saturated and easily damaged.

Post #36886 by Saint-Thomas on Mon, Jun 2, 2003 6:36 AM