Solvent-free Signo Graffitiguard is made up of silicon dioxide
molecules whose surface energy is modified by anti-bonding molecules.
On application to the porous substrate, silicon dioxide molecules
from the coating and the substrate start to bond together releasing
the anti-bonding molecules. These molecules migrate to the surface
creating an ultra-smooth, protective outer layer, and changing
the status of the porous substrate from high to low energy. This
low-energy status is fundamental to the repellent qualities offered
by treated surfaces.
|As the silicon dioxide molecules (blue)
in Signo Graffitiguard bond seamlessly with those lining
the inner pores of the substrate, the anti-bonding molecules
(brown) form a highly protective, breathable surface layer.
By preventing the absorbtion of solvent-based paint (green),
permanent damage through colour seepage is prevented.