Opticz Blacklight Invisible Blue Ink Industrial Metal UV Marker

This is that hard to find UV Blacklight Reactive Invisible Ink for box marking, document marking, and other unique security applications. Only visible under black light. Ink is water proof and very difficult to remove. Best viewed in dark or shaded area. Opticz Blacklight Reactive Invisible Printing Inks are suitable for paper marking as well as non-pourous material marking.

Opticz Blacklight Reactive Invisible Blue Ink

Invisible UV Black Light Marking Inks and Pens

Invisible UV Black Light Marking Inks and Pens

This UV blacklight reactive blue invisible ink large tip marker/pen uses high quality permanent invisible ink. Perfect for identification marking,

Opticz UV Blacklight Reactive Large Tip Invisible Ink Marker, Blue

Opticz 16oz Industrial Bright BLUE Blacklight Reactive Invisible

Color-switchable hybrid dots/hydroxyethyl cellulose ink for anti

Opticz XL Red Blacklight Reactive Large Tip Invisible UV Ink

Opticz XL Invisible UV Blacklight Reactive Large Tip Ink Marker

Opticz All Purpose Invisible Blue UV Blacklight Reactive Security