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Microfibrillated cellulose (MFC) is a multi-functional additive for coatings, adhesives and sealants, with a pronounced effect in improving rheology, stabilization and surface properties.
With RHEOBYK-7610, BYK has succeeded in developing a rheology additive which, in addition to the familiar properties, generates a specific viscosity profile.
Special clays have successfully demonstrated their use as rheological additives in paint and coatings systems. Sepiolite, attapulgite and smectites make up a particular silicate subgroup in the clay family. All of them, under the appropriate processing conditions, produce gel structures that are capable of behaving as shear thinning and thixotropic fluids.
Evonik’s Coating Additives business offers a diverse portfolio of products including additives, co-binders, matting agents, rheology modifiers, specialty resins and nanoresins. Brands include ACEMATT®, AEROSIL®, SURFYNOL® and TEGO®.
A live DIY consumer roll-out study along with a comprehensive benchmarking study of > 20 commercial paints gave insights into physical paint parameters that result in DIY consumer satisfaction.
As more Americans rent and housing demographics shift to favor the contractor market for paints and coatings, incorporating additives, specifically rheology modifiers, into a formulation can help meet desired performance.
On Demand Formulators of decorative coatings place high value on maximizing visual hiding while minimizing formulation cost. A macro and micro approach is required to reduce surface defects (foam, roller picking, etc.) and improve film uniformity. The choice in rheology modifiers plays a great role in flow and leveling performance but traditional drawdown measurements do not capture all application methods and shear conditions (spray, brush & roll).
