optiKasT Kaolin for Slip Casting Bodies : Substitute for Velvacast optiKasT is a coarse-grained kaolin used primarily in ceramic casting applications. It has a very fast cast and exceptional deflocculation characteristics. optiKasT is preferred in pressure casting systems where a faster cast rate is desired. K A OLIN optiKasT TM optiKasT is a coarse-grained kaolin used primarily in ceramic casting applications. It has a very fast cast and exceptional deflocculation characteristics. optiKasT is preferred in pressure casting systems where a faster cast rate is desired. TYPICAL PROPERTIES CHEMICAL ANALYSIS SiO2 (%) 45.2 Al2O3 (%) 38.7 Fe2O3 (%) 0.5 TiO2 (%) 1.6 K2O (%) 0.1 Na2O (%) 0.1 CaO (%) 0.1 MgO (%) Trace L.O.I. (%) 13.6 Carbon (%) 0.03 Sulfur (%) 0.04 PHYSICAL PROPERTIES pH 5.7 M.B.I. (meq/100g) 2.4 Specific Surface Area (sq-m/g) 11.0 Dry M.O.R.* (psi) 225 PARTICLE SIZE +325 Mesh (% retained) 6.0 %< 20 (microns) 94 %< 10 (microns) 85 %< 5 (microns) 74 %< 2 (microns) 55 %< 1 (microns) 37 %< 0.5 (microns) 18 *Extruded 50/50 Clay/Flint
