Optik Blue WSP are a blue spray pattern indicator powder packaged in water soluble packets (WSP) designed for easy, pre-measured, no mess applications. Designed to help eliminate overlapping sprays, missed areas, spray drift or blocked nozzles.
 
Optik Blue WSP is a highly concentrated formulation. It is easily added to spray tanks with no mess and dissolves completely in water. Under normal conditions, it remains visible for 24-48 hours. One or two Optik Blue WSP’s should be used in 200 lt water.