1 Gallon 4X Spray Pattern Indicator Dye + Surfactant, Makes 128 Gallons of Wetting Agent for Lawn & Turf Mark - Effective Spray Indicator, Liquid Blue Dye for Marking Turf, Easy to Mix & Apply

If dye is what you want this stuff does it. Wiped out all my weeds using this stuff as not to overspray. Watch out because it sticks around. Will dye concrete , rock , wood fence. Ask me how I know, lol. A few rains and it’s gone. It marks exceptionally well and the added surfactant helps stick on any weeds.

Works great but very messy! Wear gloves used at 1/2 strength and still super easy to see where you’ve sprayed. Sticks to grass and weeds very well. Highly suggest battery powered sprayer for more than 1/4 acre.

Very thick, just like ink in a pen. Does not mix the greatest so take some time and make sure it is mixed very well. The dye tends to settle at the bottom of the sprayer so you will get different shades and uneven coverage. Almost best to mix it in a small batch container then add it to more liquid in the sprayer.

Works very well! I did 1oz for every gallon and it was plenty dark for my application. This was the only photo that I took, after I strayed around our pavers, but you can obviously see where I sprayed. I tried my best to keep it off the driveway and pavers, but of course I got some on them. Hopefully it will fade/disappear quickly on its own.

Super dark and concentrated! Doesn't take a lot. The original cap had a crack. The dye drips everywhere even if you're extra careful. Wish I had a special spout for better pouring. You get more for the money.

I don't write a lot of reviews because I have such a high volume of Amazon orders. But this is definitely the best marking product I've ever used. And I've used a lot ! It mixes well, requires less product than other brands I've used, and gives an adequate amount of color. I also like that this one has surfactant, eliminating the need to buy a separate product. I have bought this 2-3 times already.

Works great but wear gloves! Really hard to get off your hands if you accidentally make contact.

You can definitely tell where it's been sprayed. I'm still trying to find tune the amount I use for a 12gal sprayer but it's less than the directions say.