VersaInk StealthTM Inkjet Invisible UV Fluorescent Red Ink - 40ml

Our review of the VersaInk StealthTM Inkjet Invisible UV Fluorescent Red Ink finds it best suited to small production runs and security-minded makers who need discreet marking that becomes visible only under a 365nm UV lamp. The 40ml bottle offers a concentrated fluorescent red that prints or can be brush-applied without disturbing existing visible prints, making it a practical choice for adding watermarks, invisible barcodes on tickets, and authentication marks on textiles and artwork. For anyone needing covert verification with standard piezo or thermal inkjets, this ink delivers focused capability in a compact container.

Key Features

• Invisible UV fluorescence: Emits a bright red under 365nm UV light for covert authentication and special effects without visible residue in daylight.
• Compatible with common inkjets: Formulated for digital inkjets using piezo and thermal print heads from major brands, allowing use on many desktop and production printers.
• Versatile application: Can be printed or brush applied to paper, textiles, tags, and paintings to embed invisible information or artistic details.
• Preserves visible content: Designed to sit under or alongside regular visible ink and paint so it does not interfere with existing printed designs or text.
• Supports security uses: Suitable for invisible barcode scanning, ID marking, passports, tickets, and anti-counterfeit watermarks for products and documents.

Who It's For

This ink is aimed at graphic studios, small manufacturers, event organizers, and conservators who need a discreet, testable method to mark goods and documents without altering their visible appearance. It is especially useful where UV-based authentication or invisible tagging is required for inventory control, ticketing, or provenance on artwork.

Those who need large-volume industrial dispensing or prefilled cartridges may want to look elsewhere; this 40ml bottle is best for low to medium volumes, experimentation, or as a specialty security supply rather than a bulk production solvent.

Pros & Cons

Pros

• Reliable fluorescence under 365nm UV light for quick authentication and visual checks.
• Works with both printing and brush application workflows, adding flexibility for mixed-media projects.
• Compatibility with piezo and thermal heads lets it integrate into many desktop and production inkjet setups.

Cons

• Limited to fluorescent color options and small 40ml volume, so larger operations may need frequent replacements or larger supply lines.

Specifications

Product	Stealth Inkjet Invisible Fluorescent Red
Volume	40ml bottle
Activation	UV 365nm light
Compatible print heads	Piezo and thermal inkjet printers
Applications	Watermarks, invisible barcodes, tickets, textiles, paintings, ID authentication
Available colors	Fluorescent Blue, Red, Yellow-Green, White

Our Verdict

The VersaInk StealthTM Inkjet Invisible UV Fluorescent Red Ink is a focused, practical choice for anyone needing covert marking and UV authentication in small to medium workflows. Its compatibility with common inkjet heads and ability to be brush-applied make it versatile for security, ticketing, and art authentication tasks, providing good value for specialty use where visible alteration must be avoided.

Frequently Asked Questions

Will this ink show under normal light?
The ink is formulated to be effectively invisible under normal daylight and becomes visible when illuminated with a 365nm UV light.

Can I use this in my desktop inkjet printer?
Yes, the formula is compatible with digital inkjets using piezo and thermal print heads by major manufacturers, though testing in your specific model is recommended.

What surfaces can it be applied to?
It can be printed or brush-applied to paper, tags, textiles, and paintings for authentication and special effects.