Noris

Noris Ink offers special ink for office or industrial use. It can be used on stone, plastic to even metal. Fast Drying #191 offers drying time between 100-300 seconds.
Wood: 100 sec
Plastic: 11 sec
Electronic Component: 240 sec
Polystyrene: 100 sec
Concrete: 30 sec
Metal: 300 sec

Noris Speciality Ink offers special ink which can be used on almost any surfaces from stone to metal tin.
Fast Drying Ink #SM has the drying time of 5-70 sec.

Look no further for invisible ink! Noris Invisible ink works on paper, human skin, or even rubber! Just apply on an un-ink pad and let it works wonders!
Ps: You will need a UV lamp in order for you to see the imprint.