The Markal Ultraviolet Valve Action Paint Marker dispenses a fast-drying, clear paint for permanent marking, lettering, coding and numbering of both interior and exterior surfaces. This marker produces a mark invisible under normal light, but glows brightly when illuminated with a UV or black light.
Marks on metal, plastic, glass, wood, cardboard, leather textiles, etc.
Writes on any surface; porous or non-porous, rough or smooth, wet, oily, or dry
Ideal for discreet quality control marking and marks will not bleed through top coats
Marks are permanent: they won't peel, fade, or rub off
Cured marks will withstand temperatures in excess of 400 F/ 200C