Mould release agent having excellent release properties therefore these agent react with the alkali in the concrete to form a thin water repellent skin on the surface of the mould or formwork thereby enabling easy striping from concrete and acting as a protection to steel and wooden formwork. Mould release agent protects the formwork and hence the formwork can be reused several times and helps to provide good finishing surface of the concrete with minimum defects. Mould release agent is also known as a shuttering oil and formwork oil.