Ceramic Glazes of Australia
Ceramic Glazes of Australia
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Marbled and Slumped Glass Platter Decorate a glass platter under the guidance of Glass Artist, Lorraine Bodger. Using the vibrant FastBright colours, create a flame like effect using the techniques demonstrated by Lorraine.
Materials Required
Preparation Preparing the Glass After washing the glass thoroughly in hot soapy water, rinse and dry. Be sure to handle the glass by its edges only, as any dirt, grease or fingerprints will fire onto the surface of the glass. Place the glass on some paper towel. Applying the Paint Begin with the Orange FastBright, drizzling it onto the surface of the glass. Add water to flood the glass with colour. Use your hands to mix the colour around the glass.
Begin adding dobs of Bright Red FastBright with a clean skewer onto the flooded surface. The second colour almost floats on the top and can be worked into the design with another skewer. Continue to add water and colour swirls to obtain the desired effect. Drying Time Allow to dry before moving. The amount of water added to this work prolongs the drying time and could take up to twelve hours, depending on climatic conditions. It is worth the wait, so don't be tempted to go on to the next step until it is completely dry. Slumping Prepare your mould by painting primer or sprinkling a mixture 60% ekalite 40% alumina hydrate onto the mould. Place the glass on the mould design side up and carefully wipe the edges clean with paper towel. Firing Place onto a kiln shelf in the middle of the kiln. The firing schedule will vary according to the capabilities of your kiln.
The glass needs to be fired slowly in a well vented kiln for the first two hours at 250 degrees Celsius per hour to reach 500 degrees Celsius per hour to reach 800 degrees Celsius. Soak for ten minutes. Once maximum temperature is reached, open the door of the kiln and check the glass has successfully slumped. Slowly close the kiln door and allow the temperature to drop no lower than 600 degrees Celsius. Maintain at 550 degrees Celsius for 45 minutes then turn off the kiln. Remove when cold.
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