clay basics

  1. Wedging:
    • the process of mixing and turning clay to remove air bubbles and create uniform consistency in
    • the clay
  2. Score:
    to draw or scratch lines into the clay surface, to connect two pieces of clay or add texture
  3. Slip:
    • watered down clay used as the “glue” to connect pieces of clay. Slip can also be applied to clay to
    • give it a smooth finish or be used as decoration
  4. Slip and Score:
    • a technique used to connect two pieces of clay by scratching into the surfaces of each
    • piece of clay and then applying slip to the scored pieces before pressing the pieces together
  5. Incising:
    a decoration technique in which lines are carefully drawn into a clay surface
  6. Stamping:
    • a decorative technique in which forms or stamps are pressed into the clay to create patterns
    • and textures. Stamping can be done with found objects or stamps can be made
  7. Sgraffito:
    • a decorative technique developed centuries ago where leather-hard clay is coated with slip of a
    • contrasting color. A pattern/picture/words are carved through the slip revealing the color of the clay
    • underneath. Or carving takes place first and slip is inlayed and excess is scraped off
  8. Slip Trailing:
    • a decorative technique where slip is applied to greenware through a tube or nozzle much like
    • icing a cake
  9. Marbling:
    using two different colors of clay spiraled together. Or two different colors of slip.
  10. Burnishing:
    • the ancient rubbing process of burnishing polishes the outside skin of a clay pot
    • Stain: oxide and water, used as a colorant for bisque
  11. Firing:
    a process in which clay is heated to high temperatures in a kiln, which melts the silica sand in the clay and when it cools turns to glass, making the form permanent.
  12. Kiln:
    • a furnace of refractory clay bricks used to heat pottery or fuse glass. Kilns are heated either by
    • electric coils, gas, or wood
  13. Pyrometric Cones:
    a triangular piece of material that indicates the temperature by bending or melting when the kiln reaches a certain temperature
  14. Stilts:
    • a small piece of clay and wire, used to keep a pot away from the kiln floor. Stilts are most often used
    • in a glaze firing to keep the clay pieces from sticking to the shelf or kiln.
Card Set
clay basics