Aquaflow™ ECO-300 is a high-shear, biocide-free, nonionic synthetic thickener for high-performance waterborne paints and coatings, delivered in a 100%-active solid dosage form. The nonionic synthetic associative thickeners (NSATs) are efficient and build rheology in paints and coatings through self-association and interaction with other ingredients. Based on hydrophobically modified polyacetal-polyether (HM-PAPE) chemistry, they are designed to function as drop-in replacements for urethane-type (HEUR) thickeners. They also work well in conjunction with hydroxyethylcellulose (HEC/HMHEC) and other nonionic cellulose ethers.