Professional Clay PF 690 Red Stoneware 100 KgProfessional Clay PF 690 Red Stoneware Available in 25 Kgs bags. Minimum order 100 Kgs. This Red Stoneware is suitable for potters seeking high firered clay. Fine textured makes it excellent for throwing large pieces, hand building and without the fear of slumping. It can also be used as a Red Raku body. With outstanding plasticity and the right amount of tooth makes it resistant to warping, cracking and thermal shock. At 1100C 1180C firing yields a