Mould SS02 100 - Square Mosaic Mould

Mould SS02 100, Square Mosaic Mould.

100 2.5x2.5x0.5cm squares.

Overall mould size 32x32x2cm.

Firing Schedule:

The recommended firing chart will lead to a smooth piece of glass with a glossy surface. The finished piece will shrink somewhat, depending on the amount of glass used. Some coldworking on the edges with a diamond pad may be necessary.

By lowering the temperature to a sinter firing (approx. 720°C) the piece will shrink less and have a rougher ‘Sugary’ look similar to pâte-de-verre.

Please Read: This firing recommendation has been calculated for use with Bullseye Glass of average viscosity with an even thickness of 4 - 6 mm. The chart shown below is also based on the assumption that you are using a top fired kiln, e.g. Nabertherm GF75, GF240 etc. 

Troubleshooting

·        Small kilns such as Skutt Firebox may require hold time at process temperature reducing.

·        Side firing kilns will 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.

·        Remove the shelf when slumping in small kilns.

·        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.