Most people have used permanent markers at some time and they are a great choice for labelling things like boxes, storage containers and packaging.

Permanent markers have an absorbent material inside them which is saturated with ink. This ink is composed of three elements, a colorant, a solvent and a resin.

The colorant is a pigment or dye that gives the ink its specific colour. The main difference between dyes and pigments is that dyes are water soluble while pigments are generally insoluble in water or non-polar solvents, unless the pigment is ground into very fine powder.

Because of this property, pigments are usually the preferred colorant for markers, given their resistance to dissolution by UV, humidity or other environmental factors.

The solvent is really the key to permanent markers. Without this liquid carrier to dissolve and transport ink colorant and ink resin through the sponge via siphoning, markers would not work. Whereas water is a polar solvent, ink solvents must be non-polar to dissolve colorants and resins, which are non-polar.

The resin ensures that the ink colorant “sticks” to the applied surface once the solvent evaporates.

If ink were just colorant and solvent, the colorant would turn to dust and fall off the surface as soon as the solvent dried or evaporated. While ink resin is naturally “sticky,” the ink solvent keeps it free and fluid inside the marker’s sealed plastic tube.

The combination of these elements is what makes removal of texta graffiti tags difficult, as the colourant has the ability to soak into the surface and then dry, leaving a stain deep inside the substrate.

This is one of the reasons why marker pens are commonly used by opportunistic graffiti vandals.

While cleaning of these graffiti marks is difficult, it is not impossible.

In this situation the ink or colourant can be drawn out from the substrate using a specialist cleaning solution that softens and suspends the ink, drawing it to the surface, where it can then be cleaned away.

The type of cleaning solution used will depend on the surface and substrate type to be cleaned. This is just one of the specialist graffiti cleaning processes that our highly trained Technicians can perform.

So regardless of the hard surface stain or graffiti problem, let our team of professionals take care of it for you.