RHEOBYK 440 is a liquid rheology additive based on a polyamide that improves anti-sagging and anti-settling properties as well as effect pigment orientation in aqueous systems. It is extremely shear-thinning. RHEOBYK 440 forms a three-dimensional network structure with pigments and fillers, increasing viscosity especially at low shear rates. Its strong shear-thinning properties ensure optimum handling and processability. Rapid structure recovery after shearing provides outstanding anti-sagging and anti-settling properties as well as excellent effect pigment orientation. These characteristics make RHEOBYK 440 suitable for applications requiring high durability, weather resistance and uniform thickness like protective industrial coatings. RHEOBYK 440 is easy to incorporate and process, delivering benefits without requiring formulation or process adjustments.