Bisque Ceramic Effects With Glass and Clay
  • Bisque ceramic type tiles made from a mixture of glass and clay have many advantages for the adventurous experimenter. While using the glass with home decor is an idea which has existed for hundreds of years; it looks like it is time comes for ecological as well as aesthetic reasons. Using recycled ground glass being a raw material not merely creates striking artistic effects, but it's environmentally friendly. The process not merely offers a use for waste glass; but in addition ceramics containing glass may be fired at reduced temperatures than pure clay, producing a substantial savings in fuel. The procedure described here uses a blend of 25% clay along with 75% recycled glass, therefore it may be fired and quickly cooled within 8 hours.


    To begin with you will need a source of crushed glass, and a ceramic or glass kiln. In case you are near a location where there can be a glass recycler with a glass crusher, then you are in luck. Some communities which can be located definately not container manufacturers their very own glass-crushing machinery. The glass doesn't invariably must be absolutely clean, but it is essential that the crushed glass includes very fine particles - dust size - considering that the strength from the final product is dependent upon particulate size. Various clays may be used, for example Redart and Plastic Vitrox. Molds for forming tiles can be made from one-by-two boards with removable bottoms; plus a screen material in the bottom to aid release the tile from the mold. Brush the sides from the mold using a solution of 1 part whiting to 2 parts water, so the tile doesn't hang on to the perimeters with the mold. Place a bit of mosquito netting cut exactly to suit underneath at the base of the mold, to alleviate the launch of the tile.

    Self-glazing is promoted by a solution of 1 part soda ash to 10 parts water. Place three areas of crushed glass as well as one part of dry clay in a mixing bowl. Add enough of the soda ash solution (roughly one fourth the maximum amount of solution as glass-clay mix) for the dry ingredients in order that the resulting mixture holds its form when left still, but starts to disassociate if it is shaken. Because glass will not absorb water, it drains quickly through the tile to the bottom carrying dissolved sodium to what will be the surface of the tile; and so the tiles are in fact self-glazing. Pour the glass-clay mix in to the mold, patting down and shaking it inside the corners. Smooth the upper surface having a putty knife. Leave the tile mold over a 200 degree F warming table for an hour (or in the sun's rays without a warming table) until any water into the tile has evaporated. The tile should draw back from the sides from the mold because it dries.

    Dismantle the sides with the mold from the tile, and flip it up to eliminate the base. When thoroughly dry, brush the top of the tile by incorporating 10% soda ash solution. Place the tile on the kiln brick shelf (tiles have to be on the shelf being that they are too soft to support themselves during firing). Then, fire quickly approximately 250 degrees F and hold it for a quarter-hour; then increase to 1000 degrees F and hold it for a quarter-hour; then increase to 1760 degrees F and hold it for quarter-hour more. Cool the tiles down normally. This technique takes about an hour and seventy-five per cent; but a slower kiln can perform the job also utilizing the same temperature levels.

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