Heat Insulating Coating Composition, Method for Applying Such Coating Composition and Kit of Parts Comprising Such Coating Composition

• Main Authors: Van Westerhuizen-Markus, Cynthia Margaret, Krikke, Joël, Rijnberg, Evelien, Verbunt, Arjan Christian
• Format: Patent
• Language: English
• Published: 20.06.2019
• Subjects: ADHESIVES; BUILDING; CEILINGS; CHEMICAL PAINT OR INK REMOVERS; CHEMISTRY; COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS; CORRECTING FLUIDS; DYES; FILLING PASTES; FIXED CONSTRUCTIONS; FLOORS; GENERAL BUILDING CONSTRUCTIONS; INKS; INSULATION OR OTHER PROTECTION OF BUILDINGS; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; PAINTS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; POLISHES; ROOFS; USE OF MATERIALS THEREFOR; WALLS, e.g. PARTITIONS; WOODSTAINS

The invention relates to a water-based coating composition for heat insulating building surfaces, the coating composition comprising in the range of from 55 to 90 vol %, preferably of from 60 to 80 vol % hollow microspheres, in the range of from 1 to 30 wt % of a dispersed acrylic binder polymer, in the range of from 0.1 to 3 wt % of a thickener, in the range of from 40 to 80 wt % water; and in the range of from 0.05 to 5 wt % of additives selected from the group consisting of biocides, anti-foaming agents, surfactants, dispersants, and combinations of two or more thereof, wherein the coating composition is substantially free of non-hollow mineral and metallic fillers and is substantially free of hydraulic binders, and wherein the coating composition has a density of less than 500 kg/m3. The invention further relates to a method for applying such coating composition by using a notched trowel for applying a ridged coating layer and a non-woven sheet of glass fiber to smoothen such layer; and to a kit of parts comprising such coating composition, a non-woven sheet of glass fiber, and a notched trowel.