About BYK

Founded in 1873, BYK is a leading global supplier of specialty chemicals, headquartered in Wesel, Germany. The additives of BYK offer improved water repellency, slip, anti-blocking properties, enhanced gloss, and the pull-up effect in final coatings. The most important aspects for BYK to align with the sustainability agenda include the search for alternative raw materials, the reorientation of research and development towards more sustainable products, sustainability in the applications of customers, and the safest possible recycling in the sense of the circular economy. Their coating additives comply with REACH, TSCA, and US FDA labels. BYK’s product offerings consist of scratch-resistance agents, surface modifiers, rheology modifiers, defoamers, flow agents, wetting agents, and waxes.

DISPERBYK® -2025

DISPERBYK® -2025 by BYK is a structured acrylate copolymer with pigment affinic groups. Acts as a high molecular weight wetting and dispersing agent for solvent-borne systems. It deflocculates pigments and provides steric stabilization. It offers high gloss and improved color strength. It provides a uniform electrical charge to pigment surfaces. It reduces viscosity, improves leveling and high pigment loading. It increases transparency and hiding power of the pigments. It shows an extremely good compatibility with different resin systems. DISPERBYK® -2025 exhibits no impact on curing properties in acid catalyzed and acid curing coatings. It displays no discoloration in baking coatings even at higher temperatures. DISPERBYK® -2025 is used in coil coatings, industrial coatings, wood coatings, automotive coatings and pigment concentrates. Recommended usage level is 5-12% for inorganic pigment, 1.5-2.2% for titanium dioxides, 20-40% for organic pigment and 40-60% for carbon blacks. It has a shelf life of 36 months.

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BYK® -3450

BYK®-3450 by BYK is polyether-modified siloxane. It acts as a surfactant for aqueous printing inks, overprint varnishes, inkjet inks & aqueous coatings. It provides a significant reduction in surface tension. It offers improved wetting on very non-polar substrates such as polyethylene, polyvinyl chloride, polyethylene terephthalate and coated offset paper. It possesses good leveling and excellent spreading capabilities. It avoids increasing surface slip. and can stabilize foam. It is also used in thin-layered applications. It can be combined with polysiloxane such as BYK-333 or BYK-3760 to offer slip. It is designed for use in formulations that do not contain co-solvents. It can be used in architectural coatings based on styrene-acrylic, pure acrylate, PU-acrylate combinations, polyurethanes and alkyd emulsions. The dosage level of BYK®-3450 is 0.1-1% for printing inks & overprint varnishes, 0.1-1.5% for inkjet ink and 0.1-0.5% for architectural coatings based on total formulation.

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BYK® -337

BYK® -337 by BYK is a solution of a polyether modified polydimethylsiloxane. Used in coatings. Offers very high surface-activity. Provides improved surface slip. Exhibits improved substrate wetting. Possesses improved anti-cratering properties. BYK® -337 imparts very good compatibility in various resin systems.

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