
Blue Gem Dye | Spray Indicator 1L
(SKU: 215274)
Specification
SKU | 215274 |
Weight | 1kg |
Size | 1L |
Features and benefits
- Safe for mixing with liquid herbicides and pesticides
- The dye is temporary- washes away with rain and faded by sunlight
- Saves money as overdosing is reduced
- Saves time as areas are less likely to be missed
- Non-toxic

Frequently bought together
Further information
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 compatiable 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 fthen fill the tank with water to the desired level and commence spraying.
We recommend:
- Always read the product label before use
- Avoid getting the product on areas you do not want temporarily dyed
- Mix in with herbicides so you can clearly see the area you have sprayed
- Wear Gloves to avoid stained skin
Technical information
- Product: Blue Gem Dye Spray Indicator 1L
- Brand: Blue-Gem
- Period Of Use: All Year Round
- Pack Size: 1 Litre
- Active Ingredient: Food Grade Dye
- Application Method: Knapsack, Boom Sprayer
- Knapsack Sprayer Rate: 12.5-30ml per 10L of water, up to 50ml depending on surface
- Area of Use: Hard Surfaces, Paddock, Pasture, Lawns, Sports Turf, Trees, Ornamentals, Amenity Turf, Artificial Surfaces
- Boom Sprayer Rate: 1-2 L per Hectare
- Pack Size Coverage: 1 Hectares or 10,000m²
- Safe For Use On: Grass, Lawns, Paddocks, Pasture, Sports Turf, New Grass, Near Water, Around Fruit Trees, Conifer Safe, Around Shrubs, Around Trees