Monterey Mark-It Blue - 32 oz (1 Qt) - Bottle - Spray Marker Dye

See Every Pass You Spray - 32 oz Bottle

Spray applications are hard to track because most solutions dry clear. That leads to missed strips and doubled-up passes. Monterey Mark-It Blue is a blue colorant you mix into the spray solution, so the treated area shows up as you work. It washes off without staining and dissipates with sunlight.

The 32 oz (1 Qt) bottle suits growers who spray regularly and want a dependable way to check coverage. It works for home gardeners and for larger operations that apply sprays across many beds or rows.

Key Features & Benefits

• Blue colorant — shows where spray has landed, so you can see your coverage.
• Mixes into the spray solution — no separate application step.
• Helps avoid skips and overlap — you can spot missed areas and avoid doubling up.
• Washes off without staining — easy cleanup from surfaces and skin.
• Dissipates with sunlight — the color fades over time.

Who Should Use Monterey Mark-It Blue

Anyone applying herbicides, fertilizers or insecticides who wants a visible record of coverage. It suits home gardeners, indoor growers and commercial cultivation teams.

About Monterey Mark-It Blue

Monterey Mark-It Blue is a spray solution colorant sold in a 32 oz (1 Qt) bottle. The bottle measures 2.5 in long, 4.5 in wide and 8.2 in high. It is described as non-toxic, washes off without staining and dissipates with sunlight.

Frequently Asked Questions

Q: How do I use Mark-It Blue?
A: Mix it into your spray solution. The blue color then shows where you have applied the spray.

Q: What can I use it with?
A: It is helpful when applying herbicides, fertilizers and insecticides. Check the label of your spray product for compatibility and mixing guidance.

Q: Will it stain?
A: It washes off without staining. Rinse promptly for the easiest cleanup.

Q: Is it safe?
A: It is described as non-toxic. Follow the label directions and the safety instructions for the spray product you mix it with.

Q: What does it mean that it dissipates with sunlight?
A: The blue color fades on its own when exposed to sun. You do not need to remove it.

Q: How does a spray marker help?
A: It makes treated areas visible. That helps you avoid skipped strips and overlapping passes.