Adjuvants are divided into two types of use categories:
Assist in Activating the Active Ingredient
- Water Conditioning Agents
- Compatibility Agents
- pH Modifers
- Sticker-spreader Extenders
Assist in Active Ingredient Application
- Drift Reduction Agents & Deposition Aids
- Tank Cleaners
- Foam Controllers
- Scent Masking Agents
- Pattern Markers
Exacto®, Inc Concept Demonstration - Measuring Surface Tension with a du Noüy Tensiometer
This video from Exacto demonstrates how a formulation’s surface tension is measured using a du Noüy tensiometer. The du Noüy ring method measures the force needed to break the surface tension of a liquid in dynes per centimeter. A solution with a lower surface tension is better able to spread across and wet a greater area of the target.
Exacto®, Inc Concept Demonstration - Measuring Surfactancy with Draves Wetting
This video from Exacto demonstrates how a formulation’s surfactancy is measured using the Draves Wetting test. Draves Wetting tests the ability of a surfactant solution to permeate a cotton skein. The faster the skein falls, the better a surfactant wets.
Exacto®, Inc Concept Demonstration - Droplets Spreading on Leaf Surface
This video from Exacto demonstrates the visible impact surfactants can have on how droplets spread on plant leaf surfaces. Adding a surfactant to an application solution reduces the surface tension of individual droplets; allowing them to spread further across a leaf surface faster than solutions that do not include surfactant.