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Wetting and dispersing additives | Rheological additives | Defoamers and air release agents | Surface additives | Substrate wetting agents And…out with the air. Foam occurs when stirring, pumping and processing liquid materials. Small, stirred-in air bubbles make further processing a challenge, but our defoamers can be used to rid the most varied of bubbles from liquids. Foam build-up can also be prevented at the mixing stage. Take hot water, add a touch of detergent, and the lather is Varied application possibilities complete. It can bind grease or oil, because the detergent, a Depending on the nature of the formulation in which our surfactant, has changed the surface tension of the water. The additives are active, our defoamers and air release agents dishes get clean but there is a side effect from the surfactant: are based either on mineral oils and silicones, or on polymers It produces foam. The foam will eventually collapse, but which are free of silicones and mineral oils. Some are also free precisely when this will be really depends on factors including of volatile organic compounds (VOC). the viscosity of the blend. Our defoamers and air release agents can be used in solvent- It may not be a problem when washing the dishes, but it borne and aqueous systems. Our users are not just coating can be a disadvantage in other areas. Foam hampers the and paint manufacturers. Our additives are used to optimize processing of coatings, polishes, and engine oils. In the products and manufacturing processes in the plastics sector production of resins, e.g. for plastics and sealants, it is and other industrial areas too. possible that the foam will stick to parts of the system. This can be avoided by using our defoamers and air release agents. In theory, the two product groups are clearly distinguishable from each other. Air release agents ensure that air bubbles which have formed in a liquid will rise to the surface more quickly. Defoamers however, become active if foam is already present. They ensure that the bubbles collapse at the surface. Air release agents and defoamers – a selection •BYK®-088 is a versatile silicone-based defoamer, suitable for paints, coatings, and adhesives. •BYK®-A 560 is a silicone-free air release agent for unsaturated polyester, epoxy, and polyurethane systems. •BYK®-1710 is an emissions-free polymer defoamer that is free of silicones and mineral oils, and is universally used in aqueous coatings and adhesives. When used correctly, our defoamers prevent the undesirable bubbles that can form in the surfaces of coatings. BYK. Competencies. 11


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