What effect does excessive drier in paint have on its performance?

Excessive drier in paint can lead to a variety of detrimental effects, one of which is making the film brittle and prone to cracking. Driers, or drying agents, are added to paint to speed up the curing process. While they are beneficial in controlled amounts, excessive use can interfere with the structural integrity of the paint film.

When the paint dries too quickly as a result of too much drier, it can lead to a hard but inflexible film. This rigidity makes the paint susceptible to cracking, especially as it expands and contracts with changes in temperature or humidity. A brittle film cannot flex effectively with these environmental changes, ultimately leading to surface defects.

In contrast, an adequately formulated paint will exhibit good adhesion and flexibility, enhancing its overall performance on the surface it covers. Proper balance in the formulation is crucial to maintain both the aesthetic and protective qualities of the paint.