Home » Viscosity Viscosity Written by Bryan Joslin on November 1, 2023 The thickness or flow characteristics of a paint material. Related Articles: Interior Rust SprayCONCOURS HVLP PAINT SPRAY GUN – HOW TO SET-UP GUIDE & MAINTENANCE INSTRUCTIONSHow to Apply Eastwood Internal Frame CoatingAuto Painting Tips and TricksGlossary: Reducer