Euroltherm B is a heat transfer oil, formulated from special refined paraffinic base stocks and can be applied from -10 °C up to +315 °C. Euroltherm B is developed for closed systems, equipped with an expansion tank. Euroltherm B has an excellent thermal and oxidation stability. In order to provide long term service life at bulk temperatures up to 315 °C (and film temperatures of 335 °C.) and where forming of carbon deposits is reduced to a minimum. The low vapour pressure of this product implies a low volatility by which system pressures can be kept low. Euroltherm B has a low viscosity and a high coefficient of heat conductivity, providing a maximum heat transfer. Because of this, pumps, valves and heat coils can have small dimensions. Euroltherm B offers adequate protection against rust and corrosion, while special additives minimize foaming tendency. Euroltherm B can be applied for indirect heat transfer in closed systems in the chemical, textile and rubber industry. Euroltherm B can not be mixed with synthetic, aromatic alkylate based heat transfer fluids because of settlement of deposits.