Terra Sigillata is a very refined clay slip, it is usually polished to a high sheen and low-fired.
Apply 3-8 flowing coats to leather hard or dry, smooth, clay. Allow to dry and polish with a soft cloth or chamois.
Fire to any temperature you like but the shine is best around Cone 017 (1450F). Redart terra Sig will turn to glaze over Cone 3. Other colors may be used higher.
In contemporary ceramic art, 'Terra Sigillata' describes a watery refined slip used to facilitate the burnishing of raw clay surfaces and used to promote carbon smoke effects, in both primitive low temperature firing techniques and unglazed alternative western-style Raku firing techniques. Terra Sigillata is also used as a brushable decorative colorant medium in higher temperature glazed ceramic techniques.
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