"Invisible" inks cannot be seen with the naked eye but fluoresce when viewed under an ultraviolet ("black") light. This air dry, waterproof, water based, non-toxic ink is used on skin for identification and re-entry purposes or on plastic for security purposes. The imprint becomes brighter after contact with water for maximum effectiveness. Dry time: Instant Colors available:
Fluoresces Blue*, Green, Red, Yellow (Blue is totally invisible, colors may leave a visible stain.)
Custom Colors: Fluoresces Orange, Violet, Pink
