Use of fillers & combinations
Although the appearance of paints change through the addition of previously mentioned
matting additives, the performance is not affected. By using specific fillers we
clearly increase the Pigment-Volume-Concentration of paint involving with all the
side effects it implies. That's the reason why this method of matting is limited
for only pigmented, economical lower classes paint systems.
The fillers with preferential narrow particle size distribution have to disperse
together with the pigments. To adjust a required gloss degree it is praxis to adjust
it by using stir in Silica at the end of the paint production process.
With modern grinding techniques it is possible to grind plastic material based mainly
upon Poly methyl urea resin. Such products have a low influence on viscosity, they
show temperature stability up to 200°C, they have good solvent resistivity,
and they are easy to disperse.