Lasting luminescent markers are made as filled soft-tip pens (the MARKERor as colorless ink for soft-tip pen (the LUMO).
They are used for protection of different items against substitution or unauthorized opening.
Marker can be applied on various surfaces: natural and imitation leather, wood, metal, plastic, and also on packing materials: adhesive tape, screws, bolts, pack-thread, etc.
The MARKER shows luminescence under 365 nm UV light, the MARKER-254 - under 254 nm UV light.
Marks practically cannot be washed away even with detergents and solvents.
Lasting luminescent markers also are offered as lacquers (the LAK-M and the LAK-M-254).
These lacquers are used on smooth solid surfaces, including water repellent surfaces.
Marks show luminescence under corresponding ultraviolet light (365 or 254 nm).
The MELOK-UV is a wax crayon, containing fluorescent marker. It is used for applying marks on paper items, packing boxes.
The marker is activated under UV light with the wavelength of 365 nm.
Standard set includes five colorless crayons, containing markers with different color luminescence: yellow, green, yellow-green, blue and red.
The MELOK-TX is a special wax crayon, which contains a marker, changing or loosing color after heating. After cooling original color returns.