Driven by increasing health and safety guidelines and ever more stringent environmental legislation, the sodium silicate method in combination with CO2 gas or liquid hardeners has enjoyed a recent resurgence in popularity in steel, iron and non ferrous foundries. This is due to the fact that harmful emissions associated with the use of organic binding agents can be largely, and in some cases completely, avoided. The production of moulds and cores using liquid hardeners or CO2 gas can also be described as odour-free, meaning that silicate binders can be classified as environmentally friendly binding agents. In combination with modern reclamation systems, reclaim rates can now be achieved that were up to now only possible with organic binders.

These products fulfil different demands on strength, break down and mixed sand flowability requirements.

CO2 gas set for core making

		Standard core manufacturing equipment applicable
		High strength
		Low viscosity
		Good mixed sand flowability