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New-style non-dusting associative thickeners from BYK

  • Innovative solid, non-dusting flakes
  • Biocide-free
  • Presentation at the European Coatings Show 2023

Wesel, January 25, 2023 – Associative thickeners are typically offered as aqueous solutions and require the addition of a number of raw materials, including biocides that prevent microbial contamination. The case is different with solid associative thickeners which usually come in powder form. The drawback of their being powdery, however, is that dust is released during processing, so that increased occupational safety measures, such as the use of dust masks, may be required.

In this BYK anniversary year, the new associative thickeners RHEOBYK-7650, RHEOBYK-7670, and RHEOBYK-7690 solve many of these problems. All three products are solid additives in a unique delivery form: They are supplied as flakes that do not tend to form dust and yet are easy to incorporate into the millbase or into the letdown as well as a solution into the formulation. By using the new associative thickeners, the rheology can be adjusted over the entire shear range.

Demonstration RHEOBYK-7690

On account of their excellent product properties, RHEOBYK-7650, RHEOBYK-7670, and RHEOBYK-7690 are recommended for use in a wide range of coatings applications as well as in adhesives and sealants.

These product highlights will be unveiled to the public for the first time at ECS 2023 where they will be on view at the BYK booth 124 in Hall 3A, as well as in an official product presentation within the exhibition complex.

Press Releases | January 25, 2023

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Press Release(.pdf)
Demonstration RHEOBYK-7690(.tif)
About BYK

BYK is a leading global supplier of specialty chemicals. The company’s innovative additives and differentiated solutions optimize product and material properties as well as production and application processes. Amongst other things, BYK additives improve scratch resistance and surface gloss, the mechanical strength or flow behavior of materials, and properties such as UV- and light stability or flame retardancy. In the field of quality assurance, BYK’s measuring and testing instruments serve to effectively assess appearance and physical properties.


The company’s customers include manufacturers of coatings and printing inks, plastics, adhesives and sealants, as well as cleaners, floor coatings, and lubricants. BYK additives are also successfully used in the construction chemistry, oil and gas, and foundry industries.


BYK has a global network of subsidiaries and operates production sites in Germany (Wesel, Kempen, Moosburg, Schkopau, Geretsried), the Netherlands (Deventer, Denekamp, Nijverdal), and the UK (Widnes), in the USA (Wallingford, Chester, Gonzales, Louisville, Earth City, Pompano Beach), and in China (Shanghai, Tongling).


The company is part of the ALTANA Group and employs a workforce of more than 2,500 people worldwide.