Oleris® Esterol A is a bio-based mixture of methyl esters of linear fatty acids (≥75% C18), saturated and unsaturated. It is processed from castor oil and has 100% vegetable oil origin. It has a negative carbon footprint and is readily biodegradable (83% in 28 days OECD 301F). Free of heavy metals and PAHs. Used as lubricity additive in rolling oils and as a wetting agent in metalworking fluids for its low viscosity and good anti-wear properties.