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Oval Bowl Mould 8144 (38.5 x 24.5 x 4.7cm)

£43.52 £36.27
More than 10 in stock
SKU
Z-G034B
Oval Bowl Mould  

Great oval slumping mould perfect for serving dishes or focal piece for interior design.

Best results are achieved by slumping at the lowest possible temperature with a long soak.

Product Size:

Inner: Length: 38 cm, Width: 24 cm, Height: 3.5 cm

Outer: Length: 38.5 cm, Width: 24.5 cm, Height: 4.7 cm

Base: Length: 31.5 cm, Width: 17 cm, Height: 3.5 cm

Will this mould fit in my glass kiln?

Please note that all our moulds are hand-made and therefore the dimensions may vary slightly from those shown. Mould manufacturers allow a tolerance of up to 2cm. We strongly recommend cutting the glass to the size measured from the actual mould rather than relying solely on the dimensions shown.

8144 Example 1 8144 Example 2

Firing Schedule:

Please Read: This firing recommendation has been calculated using Bullseye Glass with a thickness of 6 mm in a Paragon GL24 kiln, and is courtesy of Bullseye Glass Co. 

Segment Rate (C/hr) Temp. Hold
1 167C 682C 1:30
2 999 482C 1:00
3 56C 371C :00

Troubleshooting:

  • Small kilns may require the process temperature reducing. All kilns vary, as does glass viscosity. Testing is necessary.

  • Remove the shelf when slumping in small kilns.

  • Side firing kilns may require more time in the first ramp than top firing kilns.

  • Bubbles in slumping are caused by firing too high or holding too long at process temperature.

  • Cracked moulds or cracked glass is caused by firing too fast in the first ramp or cooling too fast.

  • Devitrification on the outside of a slumped piece is caused by firing too high or holding too long at process temperature.

  • To prevent the glass pulling in at the edges when it slumps into the top of the mould, make sure your glass is slightly wider (no more than 5mm) than the edge of the mould. This will stop the glass pulling in at the sides.

All our moulds are designed for multiple use and with care should last for many firings.

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