What Is Colored Slip In Ceramics

A quick video showing how i make firstly the slip for the under glazed colour for my pottery.

What is colored slip in ceramics.

One method of decorating pottery is to do slip paintings. The colored slip is essentially a decorative coating much like an engobe applied to a thrown or handbuilt form but in this case the coating is laid down first. When clay is dry the water will dislodge the particles of clay from one another. Sgraffito is a simple decorating technique where slip is layered over a contrasting colored clay body.

Once the slip layer is dry students can scratch into the surface to draw in a design. Lana wilson uses texture and clay slip to decorate much of her work. The effect looks like the clay is dissolving. In technical terms standard s white earthenware ceramic casting slip commonly called ceramic slip by most customers is a suspension of clay water and deflocculating suspension agents that nearly matches standard s 105 white earthenware clay in color and has approximately 6 total shrinkage and 17 absorption when properly fired to cone 04 maturity thus allowing moist clay and slip cast projects to be intermixed or combined together.

Utilizing tracing paper or stencils can help students achieve even more detailed results with this process. It s simple to do just mix up some slip from your waste clay sl. Selectively applying layers of colored slips can create the effect of a painted ceramic such as in the black figure or red figure pottery styles of ancient greek pottery. But sometimes when the clay slip or glaze is washed off the color loses its vibrancy.

To make the colored slip ball mill 100 grams of stain per gallon of white casting slip and let them mix for two hours 14 lbs. Multiple colored slips can be applied to create pictures or designs on the damp or leather hard clay surface. It may be left the natural color of the clay body from which it is made or it may be colored with oxides. It is applied to wet or soft leather hard greenware.

Bone dry clay will slake down into slip faster than slightly wet clay exspecailly if you take a rolling pin to the dry clay to break it up into small bits. Of casting slip is roughly equivalent to one gallon. Slip is often used in decoration. Slip is usually the consistency of heavy cream.