Release agent, form oils, form releaser and demoulding agent are materials for separating formwork from hardened concrete. Though they generally refer to the same meaning, there are slight differences among these terms.
(i) Release agent: Materials that contain ingredients which are chemically combined with cement.
(ii) Form oils: Diesel oils or other oil types.
(ii) Form releaser and demoulding agent: General terms to describe materials which perform separation of forms from concrete.