SKU: 28694336360
herbicide spray marking dye

herbicide spray marking dye FPG HERBICIDE Blue-Gem Dye Spray Indicator – Forest Park & Garden

Sale price$25.60 Regular price$28.44
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Ships within 48 hours · Estimated delivery Sep 28 - Oct 3

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Description

herbicide spray marking dye FPG HERBICIDE Blue-Gem Dye Spray Indicator – Forest Park & GardenBlue gem is a food grade blue dye that is mixed in the spray tank with herbicides and pesticides to help improve accuracy. An integral part of spraying, Blue gem will identify the sprayed area by temporarily dying the area. The treated area stays blue for a few days after application (how long it remains will depend on the surface) and then fades with sunlight or washes away with rain. Using a spray indicator, such as Blue gem, will in turn save you

Blue-gem ® is a food grade blue dye that is mixed in the spray tank with herbicides and pesticides to help improve accuracy. An integral part of spraying, Blue-gem will identify the sprayed area by temporarily dying the area. The treated area stays blue for a few days after application (how long it remains will depend on the surface) and then fades with sunlight or washes away with rain.

Using a spray indicator, such as Blue-gem, will in turn save you money and time as you are not missing any areas or overdosing any areas by spraying more than once. It can be used in a knapsack or boom sprayer and is compatible with herbicides, fungicides, insecticides, moss killers and liquid fertilisers.

To use; half fill the spray tank with clean water, agitate the water and add the required amount of blue-gem. Then add the pesticide or other treatment(s) and then fill the tank with water to the desired level and commence spraying.

Shipping Notes
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Exchange/Return Notes
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SKU: 28694336360

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David Bays
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★★★★★ 5
Well made and looks great.
This vest fits well and is well made. It feels tailored. I feel great and look good wearing it.
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Reviewed in the United States on December 3, 2025
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Looks great feels great fits great incredible price
Looks great feels great fits great incredible price
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Reviewed in the United States on December 2, 2025
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Michael Brown Jr
Chelsea, US
★★★★★ 5
Loved the fit
Looked great with my outfit
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Reviewed in the United States on April 17, 2026
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Nick
Waukegan, US
★★★★★ 5
Good fit
Color: Light Grey, Size: Medium
A nice vest and a true slim fit. Good quality for the price and no satin back, the material is used for the whole vest, allowing it to be worn without a jacket and still look smart. I am 6' 3" and 200lbs with a slim build, the Medium size fit like a glove, snug but not tight as a waistcoat should be.
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Reviewed in the United States on May 29, 2022
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Spoot
Omaha, US
★★★★★ 4
Good Fit, Fold Lines
5'9, around 125-130 pounds, and the Small fit me just fine. Adjuster strap provides a great range of... adjustment. Good waistcoat if you are looking for something quick and cheap. With it being cheap, however, the material suffers. Due to it being folded while in shipping, there are seem lines going down the sides of the waistcoat which make it poke out and look awkward.
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Reviewed in the United States on April 9, 2022

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