Casting specs

What each house has published

Minimums are copied from the caster’s own page or spec sheet, with the link and the date it was checked. A blank is not a guess and it is not a zero.

• Hygrade Casting

  Sydney, Australia

  0.50 mm minimum wall thickness. They describe anything thinner as a risk of shrinkage, porosity, distortion, breakage or a miscast.

  Checked 10 November 2026

• Morris & Watson

  Brisbane and Sydney, Australia

  At least 0.40 mm design thickness. Broad or flat areas at least 0.50 mm. If the piece will be moulded for multiple copies, at least 0.90 mm.

  Checked 10 November 2026

• Palloys

  Marrickville, NSW, Australia

  Wall thickness not published

  Checked 10 November 2026

• Cooksongold

  United Kingdom

  0.8 mm advised minimum for structural and external walls.

  Checked 10 November 2026

• DBC London

  London, United Kingdom

  Wall thickness not published

  Checked 10 November 2026

• Weston Beamor

  Birmingham, United Kingdom

  Wall thickness not published

  Checked 10 November 2026

• Hoover & Strong

  United States

  1 mm thickness recommended throughout. If a section is smaller than 1 mm, they say it is subject to evaluation and possible rejection.

  Checked 10 November 2026

• Santa Fe Jewelers Supply

  Santa Fe, United States

  1 mm minimum wall thickness. Original models should be no less than 1 mm thick.

  Checked 10 November 2026

• Stuller

  United States

  0.8 mm minimum for structural and external walls. 0.6 mm for walls and floors between structural walls. The general minimum metal to cast is 0.5 mm thick and 0.6 mm deep.

  Checked 10 November 2026

• TechForm Advanced Casting

  United States

  Wall thickness not published

  Checked 10 November 2026