Product Min Specifiction Dry Silica sand 25g Oil impregnated Cereal Binder Clean, non-sticky dry powder. Mix thoroughly with dry sand, 100:3 by weight; add 2.5%-3% water (optimum). Bake at 200°c for 3-45 minutes dependent on size. Good green strength, bench life and collapsibility on casting. 1kg Core Glue - Suitable for glueing cores together Sold per litre