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Liquid rheology additive for improving the anti-sagging and anti-settling properties of solvent-borne coatings, adhesives and sealants, as well as detergents, cleaning and care products.
Product Description
RHEOBYK-430 is a liquid rheology additive for improving the anti-sagging and anti-settling properties of solvent-borne coatings, adhesives, and sealants, as well as detergents, cleaning, and care products. With the aid of pigments and fillers, the additive generates a three-dimensional network structure; entanglement of its high molecular weight polymers produces pseudoplastic flow behavior, with the polarity of the system and the incorporation temperature influencing rheological effectiveness. It has no "false body effect," no negative influence on intercoat adhesion, and is easy to process due to its liquid form. For PVC plastisols and ambient-curing resin systems, see also RHEOBYK-410, a related BYK liquid rheology additive from the same Additives Team that covers those additional application areas.
Technical Data
| Item | Value |
| Composition | Solution of a high molecular weight, urea-modified, medium-polarity polyamide |
| Density (20°C) | 0.86 g/ml |
| Solvents | Isobutanol/solvent naphtha 9/1 |
| Non-Volatile Matter (10 min, 150°C) | 29% |
| Flash Point | 27°C |
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Applications
With the aid of pigments and fillers, RHEOBYK-430 generates a three-dimensional network structure; entanglement of the high molecular weight polymers produces pseudoplastic flow behavior. Settling of pigments and fillers is prevented and outstanding anti-sagging properties result from the rapid rebound in viscosity after shearing.
RHEOBYK-430 is suitable for improving the anti-sagging and anti-settling properties of solvent-borne and solvent-free medium-polarity systems. After incorporation, the additive generates a three-dimensional network structure; the resulting thixotropic flow behavior is optimally suited to preventing particles (e.g., encapsulated fragrances) from settling without affecting residual emptying of the container. Cleaning products containing RHEOBYK-430 are easy to use and can be applied by spraying; the additive improves adhesion to vertical surfaces, increasing cleaning action through longer exposure time. Detergents and cleaning products retain their transparency, and the modified ureas can also be post-added and used in transparent products.
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