Gas-hardened processes emissions

Cold-box Vapours of formaldehyde, phenol, isocyanate and aromatic solvents are emitted in low quantities, in spite of their low vapour pressures. Aromatic solvent emissions are highest dining purging. The most significant emission is that of amines, which have low odour detection thresholds and can create an external nuisance. Amines are hazardous, with a relatively low exposure value limit, and possess a strong characteristic smell at very low concentrations 

SO2 hardened epoxy/acrylic Minimal emissions are generated during the core-making process 

CO2 silicate This process does not generate any emission problems during moulding or core-making. 

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