Signal spray Colorant reduces wasteful overspraying by showing where you've sprayed
Signal Blue Liquid Spray Colorant temporarily turns spray solution a blue color to mark where you have sprayed. Eliminates waste due to overlapping and indicates drift. Dissipates in 2 to 72 hrs. depending on sunlight. Mixes with all liquid sprays. 1/2 oz. of liquid colorant treats 1 gal. Use one qt. for each 75-100 gal. Use one gal. for each 300-400 gal.
2016 Master Catalog: Page 327