Organic additive technology (OAT)
Various names are used to describe this group of products: organic additive technology (OAT), silicate-free coolants, long-life or 'fill for life' and in France also type D-coolants.
An organic additive technology (OAT) coolant contains only organic corrosion inhibitors such as carboxylates and triazole.
Carboxylates used in OAT coolants have very low depletion rates. A molecular layer of inhibitors is formed on the metal surface and this only at the anodic sites where the potential of corrosion exists. As a result, OAT coolants or heat transfer fluids are designed to deliver extended service intervals and, under the right operating conditions, can support the full service life of the cooling system or application.
Arteco is the pioneer in OAT-liquid cooling. It was introduced in 1992.