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Got a casting question? Why not email the experts today and find a solution.

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Casting Metal Miniatures from Prince August Rubber Moulds: Part 2

STAGE#2 - MELTING THE METAL

Melt the metal over the hob (Fig.1). Make sure metal is dry beforehand otherwise metal may spit and water escapes during melting.

An electric hob is preferable for better control of the heat.

Clamp moulds together (Fig.2) and make sure rough sides of boards are facing into the mould.

Do not over-clamp the mould as two should be sufficient. Over-clamping can prevent the escaping of air through the mould. The quicker the air can escape the better the fill. This can often be overlooked and lead to gaps in the casting.

Melt the metal over a electric hob. Use dry metal
Do not over-clamp the moulds.

(Fig.3)Stir the metal with the back of a used match (just use the wooden end) before pouring the metal.

You can tell when the metal is hot enough when the match end starts to brown and produces a small amount of smoke. If the match blackens and smokes heavily, the metal is too hot and will burn the mould.

Push any slag (floating scum) away from spout of ladle you want to pour from to avoid getting the slag into the miniature body.

 

Tips to remember:

  • Melt DRY Metal using a electric hob.
  • Do not over-clamp moulds. Rough sides of boards facing into mould.
  • Stir with USED match to test heat. Wait until match begins to brown and releases a small amount of smoke. Do not OVERHEAT.
  • Push slag away from the pouring spout.
Test heat of metal with used match, Push slag away from spout.