Method of coating metallic surface with coating having improved sag resistance

• Main Authors: Beaudry, Channing Charles, Nowack, William C, Wetzel, Wylie H, Zhang, Feng, Prevost, James A
• Format: Patent
• Language: English
• Published: 11.02.2020
• Subjects: ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; ADHESIVES; APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL; ATOMISING APPARATUS; BLASTING; CHEMICAL PAINT OR INK REMOVERS; CHEMISTRY; COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS; CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS,e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES,DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; CONTROLLING; CONVEYING; CORRECTING FLUIDS; DRYING; DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM; DYES; FILLING PASTES; HANDLING THIN OR FILAMENTARY MATERIAL; HEATING; INKS; LIGHTING; MECHANICAL ENGINEERING; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; NOZZLES; PACKAGES; PACKAGING ELEMENTS; PACKING; PAINTS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; PERFORMING OPERATIONS; PHYSICS; POLISHES; PROCESSES FOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TOSURFACES, IN GENERAL; REGULATING; SPRAYING APPARATUS; SPRAYING OR ATOMISING IN GENERAL; STORING; SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES; TRANSPORTING; USE OF MATERIALS THEREFOR; WEAPONS; WOODSTAINS

A method for applying a water-based coating and/or coating system to a metallic substrate to form sag resistant coatings is described. The method is particularly effective for protecting metal-containing substrates, such as intermodal cargo containers, against corrosion. The water-based coating includes an aqueous carrier, a resin component in admixture with the aqueous carrier and a high level of one or more CAS agents for excellent sag resistance.