The Stealth Invisible Ink Big – 15mm T-Tip is a high-capacity marker designed for smooth, controlled application of Stealth’s UV-reactive invisible ink. Equipped with a versatile 15mm T-shaped tip, it allows you to produce a range of line widths depending on the angle and pressure used. The specialist ink applies virtually invisible before reacting to UV light and gradually developing into a dark brown to black shade. With its larger body and increased ink capacity, the Stealth Invisible Ink Big is ideal for longer sessions while maintaining consistent ink flow and reliable coverage.

Features and Benefits

• 15mm T-Tip: Versatile T-shaped nib provides excellent control and a choice of line widths.
• Invisible Application: Ink applies virtually invisible before gradually developing through UV exposure.
• UV-Activated Formula: Reacts with UV light to develop into a dark brown to black shade.
• Progressive Darkening: Continued UV exposure causes applied marks to become darker and more visible over time.
• Large Capacity: Bigger marker body provides increased ink capacity for extended use.
• Versatile Line Control: Adjust the angle of the T-tip to create different line widths and effects.
• Refillable Design: Compatible with Stealth Invisible Ink Refills for continued use.

How to Use

Shake the Stealth Invisible Ink Big thoroughly before use to ensure the ink is properly mixed. Apply the 15mm T-tip to a suitable surface, changing the angle of the nib to achieve your preferred line width. The ink will initially appear virtually invisible before gradually darkening through exposure to UV light. Direct sunlight provides strong UV exposure and can accelerate the development process. Replace the cap securely after use to help prevent the tip from drying out. Refill with compatible Stealth Invisible Ink when required and always test on a small area before use.