Which formulation type is known to require repeated agitation during mixing?

Wettable powders are a specific formulation type that requires repeated agitation during mixing. This is primarily due to their composition, which typically involves a finely milled dry powder that needs to be thoroughly dispersed in a liquid to ensure uniform suspension. The particles in wettable powders have a tendency to settle out of solution over time, which makes continuous or repeated agitation necessary during preparation and application.

This can be particularly important to achieve effective performance in agricultural settings, for example, where even distribution of the active ingredient is crucial for efficacy. Agitation helps to keep the particles suspended, allowing for consistent application and better results.

Other formulation types, like flowables and granules, typically do not require the same level of agitation during mixing. Flowables, while they may also need some shaking, are generally designed to remain mixed due to their viscosity, and granules are usually not mixed with liquids in the same way, thus do not require repeated agitation. Dry flowables are similar to wettable powders but often require less agitation due to their formulation characteristics.