Releasing agents gives clean surface for the shutter. Shutter release oil is a greasy material which can help and ensure a fair faced product of concrete it also gives the surface of product a stain free look. All platforms require different variety of releasing agent. For wooden framework the releasing agent will defiantly be differ as compared to the requirement of plastic one. The main purpose of using oils or greasy agents on mould surfaces is to give product a better shine and mainly because of releasing agent the products can leave the mould easily without changing the shape and look.