RHEOBYK is BYK's leading brand for organic rheology additives. The organic RHEOBYK additives family comprises different product types: liquid and solid associative thickeners, acrylate thickeners, urea-based liquid thixotropes, polyamides, and thix boosters. They are for the most varied of applications and cover the entire shear range providing newtonian, pseudoplastic, or thixotropic flow behavior. Depending on the individual product, RHEOBYK additives can be used in sovent-borne, solvent-free, and aqueous coatings, adhesives and sealants, plastics, and industrial applications.


  • Rheology additives
  • Excellent anti-settling properties
  • Improvement of sag and spatter resistance and storage stability
  • Adjustment of flow behavior - newtonian, pseudoplastic, or thixotropic
  • Recommended for a wide range of systems and applications

1 trade-grade

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