Coalescing is the process of blending or fusing together. For example, the particles in a floor finish coalesce to form a tight continuous film. This film becomes a smooth and polished surface. If the floor finish did not properly coalesce when it dried on the floor, the floor would be dull and powdery.
Coalescing Agents are ingredients added to floor coatings to assist in the film formation. The coalescing agent allows the latex particles in a floor finish to fuse together during the drying process resulting in a smooth, continuous film that adheres tightly to the flooring.