Earthstone Clay ES 90 Flecked 100 KgEarthstone Clay ES 90 Flecked Available in 25 Kgs bags. Minimum order 100 Kgs. Based on ES 80 (Reduction), Earthstone Flecked clay performs every bit as well and is just as responsive to work with, the only difference is that this clay has an attractive speckle even under oxidation. ES 90 is perfect for anyone wanting to achieve a reduction effect in an ordinary electric kiln. CATEGORY: Earthstone METHOD: Throwing, Modelling COLOUR: Pale Buff TEXTURE: