Post-add Thickeners

Post-add thickeners are typically supplied as liquids or gels, designed to be incorporated into a paint or coating formulation after the main manufacturing process. Their functionality is to adjust the final rheology and viscosity of the coating, providing sag control, improving brushability, and enhancing application properties. Key features include ease of incorporation, immediate thickening effect, and precise viscosity control without altering other coating properties significantly. They are highly suitable for architectural paints, DIY products, and custom color formulations where on-demand viscosity adjustment is needed to meet specific application requirements or customer preferences. 

A trend in post-add thickeners is the development of highly efficient, shear-stable, and universal thickeners that can be used across various coating chemistries with minimal impact on film properties. Sub-types include associative thickeners (e.g., HEUR, HASE), cellulosic thickeners (e.g., HEC), and mineral-based thickeners, each offering different rheological profiles and compatibility.