Slip Trailing

Slip trailing is an old decorating technique in clay: thickened liquid clay (“slip”) is piped onto leather-hard pots to draw raised lines, dots, and patterns. The approach became a hallmark of 17th-century English slipware—think Staffordshire dishes signed by makers like Thomas Toft—and later traveled with potters to North America, where Pennsylvania redware often featured bold, trailed designs. Earlier traditions in China’s Cizhou kilns show how slip decoration more broadly (painting, carving through slip) has deep roots across cultures.

A tabby cat drinking water from a green ceramic bowl.
Colorful abstract painted ceramic bowl with wavy sides.
Three decorative ceramic artifacts against a red background, including a large dark blue and gold vase, a yellow and gold figurine, and a small green and white piece.
White ceramic cat-shaped dish with intricate swirl and dot patterns, set against a transparent background.
A round, pale green ceramic dish with intricate maze-like carvings on its surface, set against a transparent background.

In practice, slip trailing is drawing with clay. It’s utilizing a fine nozzle to lay down controlled relief that survives firing and brilliantly catches light under the transparent glazes. It’s an additive technique (as opposed to carving/sgraffito), which keeps the surface soft to the touch while adding graphic detail. On porcelain the clean, bright ground makes those raised lines read crisp and luminous.

We use slip trailing to give each piece a little “lift.” Each mark is applied by hand, piece by piece, so variations are part of the character and proof of the making.

Colorful, abstract, patterned artwork on a round plate with small, wavy, and dotted designs in a variety of bright colors.
A woman looking at a display of small decorative bowls in an art gallery.

Emma Dill

Emma is a porcelain-first ceramic artist whose work blends saturated color, abstract shapes, and fine pattern work.

Refined but never precious, each piece is made to be used, collected, and enjoyed. The studio takes its name from her two “Grumpy Girls,” Wallace and Yams.

Close-up of a ceramic container with intricate patterns.

The Grumpy Dispatch

Sign up for periodic studio notes: market dates, the (rare) shop drop, and fresh pics of Wallace & Yams doing their important studio jobs.

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A ceramic bowl with black abstract line art designs on a white background, shaped like a cat's face, with pointed ears.