KASTUS
Process.
Kastus is a water-based solution that is sprayed onto the glass surface before the tempering process. Once fired, the solution becomes active and sinters into the glass surface. This makes it durable, it lasts for the lifetime of the glass.
KASTUS
Photocatalytic.
Kastus makes the glass surface photocatalytic. It’s a naturally occurring process that uses UV light and oxygen to constantly create free radicals (reactive oxygen species) on the surface. These free radicals rupture and destroy the membrane of any organic material like bio-film, bird droppings, moss, fungus etc. It also destroys bacteria and viruses.
KASTUS
Photocatalytic principle.
Natural light excites an electron that migrates to the conduction band leaving a positive hole in the valence band. The charge carriers (electron and positive hole) migrate to the particle surface and initiate redox reactions with adsorbed species. The positive holes are trapped by surface adsorbed H2O and oxidise to produce H+ and OH• radicals which are powerful oxidants. The hydroxyl radicals formed on the treated surface and aggressively attack the carbon hydrogen bonds that are present in all organic molecules over and over until nothing is left from this oxidation process except water and a small amount of CO2.
KASTUS
Hydrophilic.
Once Kastus is applied it also creates a hydrophilic surface. This means the surface has a low contact angle. When water hits it the water spreads out and takes any inorganic contaminants with it.
Hydrophilic
Hydrophobic
KASTUS
TiO2 100% anatase even after tempering.
KASTUS
Rebound.
Relative bounce rate of 24% after cleaning with a wind speed of 10m/s.
KASTUS
Chemical resistance.
The chemical cleaning agents utilised in this study were chosen based on varied customer requests. Some of these products have higher concentrations of the active ingredients, than commonly used glass cleaners.
KASTUS
Abrasion testing.
We have carried out countless abrasion tests using different materials and cycles. This one was using a dust-free microfiber cloth, similar to what would be used on a car windscreen.
