Mould Release Oil is an emulsifiable, mould release oil that prevents concrete sticking to either the mould or shuttering form work. It produces a smooth finish on the concrete and keeps the mould or shuttering suitable for re-use. Excellent on moulds for pre-cast fencing and similar intricate shapes. In the neat form it is easily applied by brush, swab or spray, but if in emulsified form, spraying is not advisable. It contains a rust inhibitor which will protect metal moulds or shutter forms from rust and corrosion.