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Natural sponges have been used for years
Twist-ties lost in clay are a thing of the past
You can actually throw and hear yourself think at the same time…
including Rachel Kneebone
noble light/mid grey with natural brown speckles
Self-Supporting Cones #5 (25 Box) - Orton Modelling Clay Natural sponges have been usedOrton Self Supporting Pyrometric Cones #5 Box of 25 units Heating Rate Temperature Equivalence 15C hr (Slow) 1159C 60C hr (Medium) 1186C 150C hr (Fast) 1207C Explanation: Slow: The melting point of the cone at a slow rate of temperature change of 15C per hour, will be 1159C. Medium: The melting point of the cone at a slow rate of temperature change of 60C per hour, will be 1186C. Fast: The melting point of the cone at a slow rate of temperature change
