This is a very special mould to make a large and deep bowl with a wide solid base. A typical serving dish for salads, deserts and other foods. Instead of cutting the glass round try a square piece or a piece with an irregular outline. A smaller circle will result in a more shallow dish, e.g. soup bowl etc.
Recommended Firing Chart
This firing recommendation has been calculated for use with Bullseye glass. Whereas the most typical casting glasses are frit and billets, you can have great results using sheet glass, stringers, rods as well as prefabricated components.
The chart shown below is also based on the assumption that you are using a top fired kiln, e.g. Paragon GL22, GL24, BVD Flat bed kilns etc.
Following this 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