Paint consists of resin which is the film forming chemical, pigments, which are for example responsible for any kind of color, various additives and fillers. Paint scientists and paint formulators use mainly fillers to modify various properties of the final coating. Gemme Fine products a high-quality synthetic extender, is suitable for all paint and coating systems. This also applies to all types of primers, fillers and mastic compounds. Thanks to its immense specific surface area and favourable particle-size distribution. Gemme Fine has an extremely low binder absorption index and permits high levels of extension.
As an inert extender which is insoluble in water, alkalis and organic media, extremely light and fine-particle Gemme Fine offers advantages over the majority of other extenders, particularly in chemicals-resistant paint and coating systems. Gemme Fine generally enhances the long-term protection of highly weathering resistant resistant paint and coating films.
If a coating contains a certain share of filler, its volume replaces the same volume of the resin. This means that an ingredient, which shows shrinkage in the curing process is replaced by an ingredient which is stable. Filled coating films show less internal tension therefore. These coatings are for example more durable and flexible.
Each filler particle has a certain binder demand. This share of the resin doesn’t spread out on the substrate. It’s fixed by the filler particle. So its easier to apply a controlled film thickness with filled coating systems. Edge control is no problem; sagging can be reduced.
Depending on the filler, an electrostatic interaction between filler and pigments can even lead to an improved stabilization of both filler and pigment. Reduced pigment loading and more brilliant and clear colors can be obtained.
Gemme Fine used mainly in high gloss and satin-gloss paints and in so-called “acid-resistant” dispersion paints, which remain resistant even under exposure to aggressive industrial atmospheres. Which expand all the advantages of Gemme Fine fillers in coatings of fillers in coatings to high gloss systems.