Release agent
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A release agent, also known as a de-moulding agent, parting agent or form releaser, is a substance used in moulding and casting that aids in the separation of a mould from the material being moulded and reduces imperfections in the moulded surface. Substances used to aid in the separation of food from a cooking container after baking or roasting, such as fat or flour, can also be considered release agents.