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US 2002/0172759 A1Published application
Concrete form release compositions
AssigneeThe Hill and Griffith Company
InventorsVictor Steven LaFay, Stephen Louis Neltner
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AssigneeThe Hill and Griffith Company
InventorsVictor Steven LaFay, Stephen Louis Neltner
Estimating the term…
The forming of shapes using cement and/or concrete is an old art. In this process a form is removed, leaving the shape of the pattern which is the result of the form designed. Fluid concrete and/or cement can then be poured into the cavity to form the object. To increase the life of the forms, and to make removal of the form easier, the form must be coated with a protective material. Despite many available form release compounds, mineral seal oil, and a mixture of mineral seal and oleic acid, have been the commercial choices. A biodegradable form release composition including vegetable oil with a petroleum oil and/or an alcohol and a method of utilizing such a release composition to reduce adhesion between concrete and formwork or a mold is disclosed. The form release composition is biodegradable with a low VOC content.
In the process of protecting cement and/or concrete surfaces from pitting during production of a defined shape that has been determined by a form by preventing adherence, a form release coating composition is applied to the form surfaces in an amount sufficient to form a coating thereon which prevents adherence of material to the form, the improvement comprising applying to the form surfaces a form release coating composition consisting essentially of a vegetable oil, a viscosity reducer selected from the group consisting of mineral seal oil, alcohol and mixtures thereof;
A method for facilitating release of concrete and/or cement from a form or mold surface comprising applying to the form or mold surface an effective amount of a biodegradable form release coating composition, wherein said biodegradable form release coating composition consists essentially of vegetable oil;
Dependencies are inferred from the claim text.