Silicone mould release spray is a thin, non-staining liquid used to prevent material from adhering to surfaces, such as moulds. It is generally composed of a silicone-based lubricant, mixed with a solvent. When sprayed onto a mould, the silicone component forms a thin, invisible film which prevents material from sticking to the mould. This makes it easier to remove the finished product from the mould without damaging it. Silicone mould release sprays are used in a variety of industries, including automotive, medical, and aerospace.