32oz 4X Spray Pattern Indicator Dye + Surfactant, Makes 32 Gallons of Wetting Agent for Lawn & Turf Mark - Effective Spray Indicator, Liquid Blue Dye for Marking Turf, Easy to Mix & Apply
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This item is eligible for return within 30 days of receipt
To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.
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Availability:
In Stock.
Arrives
Jul 21 – Jul 22
Size: 32 oz
Features
- 4X CONCENTRATED POWER: Blue Spray Indicator Dye blended with surfactant 1 quart of this turf mark blue dye makes 32 gallons while 1 gallon sprayer of our blue grass dye makes up to 128 gallons.
- 2-IN-1 BLEND: Wetting agent + undiluted liquid blue spray dye marker that simplifies your lawn care routine & saves time and money. This spray pattern indicator makes application effective & easier.
- VISIBLE BLUE COLOR: This turf mark blue spray indicator dye is a blue colorant lawn dye that tracks your application coverage. Our blue indicator dye reduces overspraying, missed spots, and overlaps.
- IMPROVES PRODUCT EFFICACY: This blue marker dye + lawn surfactant enhances the effectiveness of your grass and lawn care products by helping their active ingredients penetrate deeper and more evenly.
- NON-STAINING, NON-PERMANENT DYE: This turf mark dye does not stain when diluted properly. The colorant in this turf mark + surfactant lasts 24-48 hours depending on sun and moisture conditions.
- EASY MIXING: This marking spray paint dye can be tank-mixed with a fertilizer sprayer and other solutions. Use it for all spray applications and hydroseeding to increase efficacy & improve coverage.
Brand: Not Rocket Sciences
Item Weight: 32 Ounces
Item Form: Liquid
Coverage: Medium
Liquid Volume: 32 Fluid Ounces
Package Dimensions : 7.56 x 5.71 x 2.32 inches; 2 Pounds
Item model number : NRS-4X-S-SPI
Date First Available : January 29, 2024
Manufacturer : Not Rocket Sciences
Country of Origin : USA
Best Sellers Rank: #14,371 in Patio, Lawn & Garden (See Top 100 in Patio, Lawn & Garden) #480 in Garden Fertilizers
#480 in Garden Fertilizers:
Customer Reviews: 4.6 4.6 out of 5 stars 151 ratings
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Jul 21 – Jul 22
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
Size: 32 oz
Functionality: Did the job and made spraying pre emergent a breeze
Reviewed in the United States on July 11, 2025 by Joshua A Lack Joshua A Lack
Size: 32 oz
AAA++++
Reviewed in the United States on July 14, 2025 by Jennifer
Size: 32 oz
This stuff works, it marked where I sprayed so I didn't apply in the same place twice. I recommend following the directions closely it only takes a little bit of this stuff to mark your yard. It will absolutely stain anything it comes in contact with so be careful around driveways sidewalks edging etc. I wore gloves and I'm glad that I did and figure that your shoes will be blue too. Interestingly enough it did not stain the inside of my backpack sprayer, I figured that I was going to have a blue tinted sprayer from now on. I like that it also has the wetting agent already added to it too. It does take a long time for this to dry on the grass though. For me it was about five days and my wife was not happy about having to walk our 2 dogs down to the vacant lot for them to do their business.
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Reviewed in the United States on December 13, 2024 by DawDaddy
Size: 32 oz
Great visual aid in spraying lawns.Mix as directed and you will see where your product was last applied with a blue hue.The spray dye eventually disappears with rain or next lawn cut.
Reviewed in the United States on May 26, 2025 by joanna
Size: 1 Gallon
This have great color with just a small amount also there is no clogging in the filters
Reviewed in the United States on May 12, 2025 by Satisfied
Size: 32 oz
I use this with Speedzone in a Ryobi 2 gallon electric sprayer. It works perfectly. Washes off concrete after several days with rain and water, so spills and drips aren't the end of the world. It sprays well, with no apparent impact to the viscosity of what you're spraying. A little goes a long way, so don't overmix it. In fact, you can even put a bit less in than the label says and it'll still mark the area you sprayed with enough color to be useful. Meaning that you get even more than you're paying for.
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Reviewed in the United States on March 13, 2025 by Reviewer
Size: 32 oz
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.
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Reviewed in the United States on March 3, 2025 by Holly M. Posey
Size: 32 oz
Works as intended - keep it off your skin and driveway
Reviewed in the United States on March 29, 2025 by Brendan Calahan