Cinon OI fungicide is a high-quality formulation of two fungicidal substances; octylisothiazol and iodopropynyl butylcarbamate. The product contains no heavy metals, no aldehydes, and no phenols. Cinon OI fungicide can be incorporated into both aqueous and solvent based products. The biocide is very effective against moulds, wood deteriorating fungi and yeasts. In circulating systems the product has an outstanding performance against moulds. Due to the lack of foam forming Cinon OI fungicide is recommended for critical metalworking applications such as grinding emulsions.