Technical Materials

KILN CASTING & MOULD MAKING

Mould/Glass Calculation Worksheet (Mercer) (click to view; right-click + “save link as” to download)
Worksheet to figure volume of mould, how much mould-mix/water, and how much glass based on weight of clay pattern.

mouldcalcsheetmercer


Mold Materials Chart (Clayman) (click to view; right-click + “save link as” to download)
Recipes for common mould-mixes by weight.

Mould Materials Chart-150px


Curing, Firing & Annealing Graph (pdf) (click to view; right-click + “save link as” to download)

Glass Firing & Annealing Graph


Bullseye Glass Annealing Chart (pdf) (click to view; right-click + “save link as” to download)

Bullseye Glass Annealing Chart


Bullseye Tech Notes: Heat & Glass (pdf) (click to view; right-click + “save link as” to download)
Notes and diagrams of changes glass undergoes as it is heated past the softening point. Excellent reference for fusing and slumping glass.

bulls-heatglass


Bullseye Tech Notes: Basic Lost Wax Casting (pdf) (click to view; right-click + “save link as” to download)

bulls-lostwax

Covers the basics of:

  • Mould-making around a wax pattern.
  • Wax steam out.
  • Glass calculation.
  • Mould-curing.
  • Casting.
  • Divesting.
  • Cold-working.

Casting & Annealing Journal Form (Standard Annealing Record Form to archive basic casting notes: Casting/Annealing Program, Mould & Glass Weight, Notes, Etc.)

Casting & Annealing Record (Watlow)


Bullseye Changes Annealing Temperature! Yes, that’s right. Bullseye (like Spectrum) previously recommended annealing at 960°F, because that is the actual “annealing temperature”(based on the science of defining an annealing temperature). Watch this video that explains why they changed and why this can save you time, energy and actually anneal your glass better. (LESS CRACKING!) For more on annealing click here.

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