Slip Casting

Notes From Geoffs Master Class.

• Roll out the buff clay leaving good gaps around the sides of the object.
• Sink the object up until it's half way point building the clay around it - make sure the clay makes a seal around the object at its half way point.
• Smooth out the clay to make it as flat am imperfection-less as possible using kidneys and paint brushes.
• Soft soap the object if it is made form a porous material - use little amounts of soft soap and build up layers.
• Cotal the sides of the buff clay (to make the area for the plaster o be poured into) with melamine boards of other slabs of buff.
• Make coils of the buff to secure the walls in place so that the weight of the plaster wont make them fall and to prevent any leaks.
• When mixing the plaster sprinkle the plaster into water until little mountains appear.
• Leave it to stand.
• Gently hand mix the plaster being careful not to aggravate it and add air bubbles.
• Mix until it feels thick and like its just about to go off.
• Do not pour the plaster directly on top of the object - pour into the side of the mould.
• Fill a good distance above the object.
• When dry clean up the mould and add natches.
• Soft soap the inside of the mould - especially the natches or the parts won't separate.