Free-flowing colourants that meet the highest demands
Current legislation requires a rethink in the production of biocide-free paints. Because all components used in the paint must be free of biocides to qualify for such a label, we enable the production of paint products that comply with common environmental labels. With the help of sophisticated formulations, our pigment preparations achieve excellent results with high colour strength and opacity, even without the use of controversial biocides. In this way, Scholz creates the prerequisites for producing a new generation of bicoide-free paints, thereby opening up new sales opportunities, providing strong selling points, and ensuring satisfied, appreciative end customers.
Excellent paints made possible by our colourants
Since low-emission formulations are particularly desirable for paints and coatings used in interior spaces, there are legally binding limit values that must be met. Well-known environmental labels, such as the Blue Angel or the EU Ecolabel, also provide guidance for end consumers. They identify paints and coatings that meet particularly strict requirements regarding production and the additives used. The primary goal here is to prevent emissions caused by pollutants and solvents or biocides, such as methylisothiazolinone.
If components - including the colourants used - contain biocides during product manufacturing, the final product cannot be labeled as biocide-free. Therefore, our innovative colourants primarily serve manufacturers who wish to meet the criteria of relevant environmental and sustainability labels.
Of course, our biocide-free colourants can also be used for tinting conventional applications and base paints.
Euronox®/Euronyl® 4BF for water-based tinting without biocides
In the Euronox®/Euronyl® 4BF product line, we have provided the pigment preparations with permanent biocide-free (hence the name: “for Biocide-Free”) protection against microorganisms. They have been specially developed for even more versatile use in all common water-based paints and coatings.
Solidflow, dry, free-flowing colourants for tinting aqueous paints coating
Our partner SIOF from Italy has also addressed the topic of biocide-free products and, together with us at the last ECS (European Coatings Show), introduced a solid pigment preparation. The free-flowing granules in Solidflow are ideal for use in aqueous paints and coatings. Since they are free of biocides, VOCs, and APEOs, they open up new possibilities for tinting (e.g., POS tinting). Instead of existing dosing systems for liquid pigment preparations, these granules only require an adapted gravimetric, dispensing dosing system.
Euronox®/Euronyl® NOW for biocide-free systems and solvent-free two-component coatings
Euronox®/Euronyl® NOW (= "NO Water") are liquid pigment preparations that contain neither water nor volatile solvents. They can be used ideally in POS tinting systems. The principle of conservation of our NOW-colourants is similar to the method known from the food industry, which involves lowering the water content—not by boiling, but through a specifically developed formulation by our colour experts. Stability against bacterial and mold growth can be scientifically expressed via water activity. Water activity is the ratio of the vapor pressure of a mixture compared to that of pure distilled water. Below certain values, growth is no longer possible. Reducing water activity to values <0.6 is sufficient to prevent the growth of microorganisms even in pigment preparations.
A major advantage of our concept of completely water-free pigment preparations is therefore longterm stability of this technology without the need of any additional investments in POS-dispensing modifications whatsoever.
Contact us! We would be happy to advise you on biocide-free tinting systems and more
Having identified the trend toward safer pigments early on, we are proud to introduce our latest solutions to our product range. Strong customer interest already confirms that our commitment - and that of our partners - has paid off. See for yourself! Our colour experts at Scholz would be happy to advise you and discuss the possibilities for producing specific colourants and/or customized private-label solutions.
Did you know?
We offer pigment preparations, colourants, and concentrates not only for paints and coatings but also for a wide range of applications in construction (e.g., slurry), agriculture (e.g., seed treatment), and the textile industry. Benefit from proven Scholz quality and our expertise across a variety of fields.




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