Sgraffito pottery is decoration made by scratching through a layer of colored underglaze or slip to reveal the clay body underneath. The word comes from the Italian for "scratched." The classic sgraffito technique is simple: coat leather-hard clay with two or three layers of underglaze, wait until the color loses its shine, then carve your design with a fine tool. The contrast between dark color and light clay does the work.
This guide is research-based. We pulled timing, tools and steps from published tutorials by Lakeside Pottery, DiamondCore Tools and Ceramic Arts Network, and from maker pages for the underglazes and tools named. Specs checked October 2026.
What you are scratching through: underglaze or slip
Most home potters use commercial underglaze. AMACO lists both its LUG and Velvet lines for sgraffito, and LUG-1 Black and Velvet V-370 Jet Black are the colors the tutorials name most. Traditional sgraffito ceramics used colored slip, which is clay mixed with water and oxide. Slip works too, but it is thicker and must be applied at the right moisture so it does not crack. Our clay slip guide covers that route.
Choose a light clay body for strong contrast. Black underglaze on white stoneware or porcelain reads clearly from across a room; black on brown clay does not.
Timing: leather hard is the sweet spot
Carve when the clay is leather hard: firm enough to hold its shape and handle, soft enough to cut cleanly. Lakeside Pottery compares the feel to "firm cheddar cheese." DiamondCore's test is to press a fingernail into the clay: if it leaves a small mark without the piece feeling fragile, you are ready.
Too wet and lines smear and drag. Too dry and the clay chips, the tool skips, and you make dust. Our leather hard clay guide explains how to catch and hold that stage, and bone dry clay explains why that later stage is fragile.
Sgraffito tools
You can start with a needle tool from a basic kit. Purpose-made sgraffito tools give cleaner lines and less chipping, and a dedicated sgraffito tool with a wire loop or fine wire tip lifts a clean curl of clay instead of tearing it:
- Wire stylus or wire loop tool for fine and variable lines.
- Ribbon or loop tool for clearing larger background areas.
- Soft, dry brush (a makeup brush works) for sweeping away crumbs without smudging color.
- Tracing paper and a ball stylus or pencil to transfer a design.
- Banding wheel so you can turn the pot instead of your wrist.
Kemper WLS Wire Loop Sgraffito Tool
Kemper describes this as a tool with wire loops on each end that lets you vary line width "within a single stroke," leaving a smooth furrow. Kemper's own store listed it out of stock when we checked, so look at dealers too.
Kemper WS Wire Stylus
A 6 in tool with "a very small and delicate wire" for incising fine furrows and detailing small areas, per Kemper. Lakeside Pottery names Kemper wire stylus tools for fine sgraffito work.
DiamondCore L1 Diamond Sgraffito Stylus
A double-ended tool with a diamond needle tip and a 1 mm diamond ball tip on a foam-grip handle. DiamondCore pitches it for very fine detail on drier clay, and it costs several times more than a Kemper tool.
Step-by-step sgraffito technique
- Make and trim the piece. Keep surfaces you plan to carve smooth. Let the pot firm up to leather hard, covering it loosely with plastic if it is drying unevenly.
- Apply underglaze. Brush two to three coats in alternating directions, as both Lakeside Pottery and DiamondCore advise. Ceramic Arts Network's tutorial uses a single coat of AMACO Jet Black Velvet, so coat count depends on the product; aim for no streaks.
- Wait for the shine to go. Carving wet underglaze smears. Wait until it looks matte but the clay below is still leather hard.
- Transfer your design. Draw it on tracing paper, lay it on the pot and trace firmly with a ball stylus or sharp pencil to leave faint indented lines.
- Carve the main lines. Pull the tool toward you at a low angle, cutting just through the color into the clay. Let the curls fall away.
- Clear crumbs often. Sweep with a soft dry brush. Do not blow crumbs across wet color, and never wipe with a wet sponge.
- Clean up burrs. Once the piece firms a little more, smooth rough edges with a rubber shaper or soft brush.
- Dry slowly and bisque fire. Ceramic Arts Network's tutorial bisques slowly to cone 04.
- Glaze. Brush, dip or pour a thin clear glaze so lines stay sharp, then glaze fire. Ceramic Arts Network fires its example to cone 5.
Do you glaze over sgraffito? You do not have to. Bare underglaze fires matte and looks good on vases and tiles. For mugs, plates and bowls, use a clear glaze labeled food safe at your cone. Thin, gentle coats keep fine lines crisp.
Best pieces for a first try
Start flat. A slab tile or a small slab plate is the easiest surface to carve, because you can work on a table, see the whole design at once and keep it evenly damp under plastic. Our slab pottery guide shows how to roll even slabs. Once you have the timing down, move to straight-sided mugs and cylinders, which turn neatly on a banding wheel. Bowls and curved forms come last, since carving inside a curve is harder on the wrist.
Sgraffito designs to try
Strong sgraffito designs use contrast and repetition. Good first projects include:
- Botanical line drawings: leaves, ferns and branches that wrap around a mug.
- Geometric bands: stripes, chevrons and dots carved while the pot turns on a banding wheel.
- Negative space: carve away the background and leave the subject in color, or the reverse.
- Animals and birds outlined with fine lines, then filled with cross-hatching.
- Lettering: names, dates or short words on the side of a planter.
We collect more ideas, with simple patterns for first-timers, in beginner sgraffito designs.
Sgraffito vs mishima: what's the difference?
Both use carving and color, but in reverse order. In sgraffito you color first and carve through it. In mishima you carve thin lines into bare clay first, fill them with underglaze, then scrape the surface clean so color stays only in the lines. AMACO lists LUG for both. Read our mishima pottery guide for that method, and carving pottery for deeper relief work.
Fixing mistakes
A stray line is not the end of a piece. While the pot is still leather hard, brush a little underglaze back over the stray line, let it dry to matte, and carve again. After the bisque firing, Lakeside Pottery suggests touching up any thin spots with underglaze before you apply clear glaze. If the clay dried too far before you finished, mist it lightly and wrap it in plastic for a few hours to even out the moisture, rather than forcing a tool through hard clay.
Planning helps more than fixing. Sketch the design at full size on paper, wrap it around the pot to check the spacing, and carve the main outlines before any fine detail. Keep the pot under loose plastic between carving sessions so it stays at the same stage from start to finish.
Common sgraffito mistakes
- Carving too early. DiamondCore notes lines "smear or drag" when the clay or color is too wet.
- Carving too late. Dry clay chips, cracks and makes dust.
- Too few coats. Thin underglaze gives a "washed out" design after firing.
- Pressing too hard. Deep gouges catch glaze and can weaken thin walls. You only need to cut through the color.
- Wiping crumbs. A damp sponge drags color into your lines. Use a dry brush.
- Heavy glaze. A thick, brushed clear can blur fine lines. Apply thin coats gently.
What are the disadvantages of sgraffito?
Sgraffito is cheap to try, but it has real drawbacks to plan around:
- It is slow. Two or three coats of underglaze, a wait for the shine to go, then line-by-line carving make it one of the most time-consuming ways to decorate a pot.
- The timing window is narrow. The clay has to stay leather hard from first line to last. Too wet smears; too dry chips. Large designs often need several sessions under plastic.
- It needs contrast. The effect depends on a light clay under a dark color, so buff, red and brown bodies give weak results.
- Mistakes are hard to hide. A cut line is permanent unless you recoat and carve again.
- Crumbs and dust. Carving makes scraps that dry into silica-bearing dust if you let them pile up.
- Wrist strain. Long carving sessions at a low angle tire the hand; a banding wheel and breaks help.
None of these rule it out for a beginner. Start with a small tile so the timing and carving time stay manageable.
Safety notes
Clay and underglaze crumbs dry into silica-bearing dust. Collect scraps on paper or in a bin, wipe your table with a damp sponge, and mop rather than sweep. Wear a NIOSH-approved respirator if you ever mix dry materials or must work with dry, dusty clay.
What you need
To start, you need a white or light clay, one black underglaze and a fine carving tool. Our best underglazes guide compares AMACO LUG, Velvet and other colors for sgraffito, and our best pottery tools guide covers starter tool kits.
Sources: Lakeside Pottery sgraffito tutorial; DiamondCore Tools "How to Make Sgraffito Pottery" and L1 product page; Ceramic Arts Network, Pottery Making Illustrated "Sgraffito Decoration"; Kemper product pages for WS Wire Stylus and WLS Wire Loop Sgraffito Tool; AMACO LUG and Velvet pages. Specs checked October 2026.