Icewood Atelier
Clay Shrinkage Test Tile Cutter + Stamp – 5 cm or 10 cm Scale
Clay Shrinkage Test Tile Cutter + Stamp – 5 cm or 10 cm Scale
In stock
The listed dimensions are the size of the tool, i.e. the wet clay. Clay shrinks during drying and firing, usually around 5–15%, and the final size of your piece always depends on your own clay and firing temperature. For example, with a 10 cm size and 12% shrinkage, the finished piece would be about 8.8 cm. Please check your clay's shrinkage before ordering and choose the size accordingly.
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Find out exactly how much your clay shrinks. This cutter cuts a test tile from a 5 mm slab and stamps a measuring scale into it in the same press, so every tile you make is a ready-made shrinkage test.
Roll your slab to an even 5 mm and press the cutter straight down until the back plate meets the clay. The cutting wall is exactly 5 mm tall, so it cuts cleanly through the slab just as the scale is pressed about 1.5 mm deep. Small air holes in the back plate help the tile release. A band of squares above the scale shows how a glaze behaves over texture.
Dry and fire the tile, then lay a ruler against the stamped scale. Shrinkage % = (scale length − measured length) ÷ scale length × 100. For example, if the 10 cm scale measures 8.8 cm after firing, your clay shrank 12 %. Write the clay name and firing temperature on the back of the tile to keep a record.
Two sizes: the 10 cm version (tile approx. 12.2 × 4.2 cm) gives the most accurate reading, and the 5 cm version (tile approx. 7.2 × 4.2 cm) saves clay and kiln space when you test many clays or glazes at once. Both are 3D-printed from PLA at Icewood Atelier's workshop in Finland.
Not intended for food use.
Design by Icewood Atelier, made in Finland.
⚠️ The product color may vary.
