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Wetting and dispersing additives | Rheological additives | Defoamers and air release agents | Surface additives | Substrate wetting agents Let it flow … Consistency is critical. The more viscous a material, the more awkward it is to process. Very low viscosity materials present a chal- lenge. Our rheological additives allow you to control the flow characteristics of your products. Ketchup is a tricky material. Sometimes there is considerable The rheological series for coatings can, for example, ensure that delay before it flows out of the bottle, and other times you end they are not applied too thinly or too thickly. They are applied up with more on the plate than you need. Why does it take so without forming droplets or bubbles. This way, they ensure a long for it to get moving, while water or oil flow immediately? uniform coating with a thickness that suits the product; and The character of more viscous materials is dependant on the prevent the sedimentation of solids. formulation. Ketchup flows differently than mayonnaise, and For decades we have continuously advanced our knowledge of both behave differently than a gel or foam. rheology. We have also applied the expertise gathered in the The flow characteristics of all materials can be influenced by field of coatings and paints to other applications. Today, we rheological additives – after all, their name originates from the also support the plastics and construction sectors, as well as ancient Greek verb “rhei”, which means “to flow”. manufacturers of paper and adhesives, as well as formulators of care products. Our rheological additives can help to improve It all starts with the molecular structure various products. Our rheological additives act at the molecular level. They generate an interaction between the molecules, specifically influencing the flow characteristics of the respective materials. This improves the properties of the respective product and considerably facilitates its processing. Without treatment, Rheological agents – a selection metal pigments will •BYK®-430 is a versatile liquid rheological additive for medium- settle. By adding a BYK additive, we polarity systems. It can be incorporated with materials that can reduce the come into contact with food. settling in the basic coating. •BYK®-R 605 is used as a thixotropy enhancing additive in unsaturated polyester resins, epoxy and polyurethane systems. •BYK®-D 420 is a liquid rheological additive for aqueous or water-reducible systems and contains DMSO as a solvent. BYK. Competencies. 9


BYK_B-5_Additves_GoodThings_SmallPackages_US
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