Sand Bonding BETNOKOL - 7 Combined volatile/clay additive and coal dust substitute for green sand casting of cast iron. BONDSIL - 19 Specially formulated silicate binder Containing breakdown agents for CO2 Silicate process. BONDNIC - 5 Powder organic additive to improve the breakdown of CO2 Silicate moulds and cores. BONDNIC - 6 Liquid organic additive with better dispersing properties used with sodium silicate binder. BONDNIC - 7 Self-hardening single shot powder additive for better strength of mould and cores. BONDTECH - 7 Air-hardening single shot powd