What are the two types of form releases based on their chemical action?

The distinction between barrier release agents and reactive release agents is significant in the context of form releases used in manufacturing and construction, particularly where materials such as concrete or plaster are involved. Barrier release agents are designed to create a physical barrier between the mold and the material being cast, preventing adhesion and ensuring a smooth separation once the material has cured. This type of release agent typically forms a film on the mold surface and is effective for several applications.

On the other hand, reactive release agents engage in a chemical interaction with the material being poured, usually leading to a reaction that facilitates the separation of the material from the mold. These agents might alter the surface characteristics of the product or the mold such that they reduce stickiness or enhance the finish of the final product. Understanding these two types helps manufacturers choose the appropriate release agent depending on the specific materials and desired outcomes in their projects.