BYK

BYK is a specialty chemicals company within the ALTANA Group, headquartered in Wesel, Germany. It develops and manufactures additives and testing instruments used to optimize the processing and performance of coatings, inks, plastics, adhesives and sealants, construction chemicals, and related systems. The company operates under the BYK Additives and BYK Instruments (BYK‑Gardner) brands.

Its additives portfolio includes wetting and dispersing agents, rheology modifiers, defoamers and deaerators, surface and slip additives, wax additives, and adhesion promoters, which help improve flow, leveling, stability, appearance, and durability. BYK Instruments provides solutions for color, gloss, appearance, and physical property measurement to support quality control in production and R&D. BYK serves markets such as automotive, industrial and architectural coatings, packaging, electronics, and construction, with R&D and manufacturing sites in Europe, the Americas, and Asia.