The invention relates to preparations comprising a polyurethane and/or polyurea and a copolymer as well as their use as hydrophobing agents,

The invention relates to a method for coating a substrate comprising: a) providing a liquid aqueous coating composition, the composition comprising an acrylic resin as binder, one or more surfactants, a coalescence solvent, and a thickener; b) foaming the liquid aqueous coating composition to obtain a foamed coating composition; c) applying a layer of the foamed coating composition on the substrate; and d) allowing gas to escape from the layer of foamed coating composition and allowing the coating composition to dry to form a homogeneous non-foam dried coating, wherein the liquid aqueous coating composition provided in step a) comprises the acrylic resin in a concentration in the range of from 1 to 20 wt %, comprises the thickener in a concentration in the range of from 0.05 to 2.0 wt %, and has a solids content of at most 25 wt %, based on the total weight of the liquid aqueous coating composition. The invention further relates to foamed aqueous coating composition obtainable by steps a) and b).

A method of manufacturing a building panel with a decorative surface layer, a core and a balancing and/or protective layer, wherein the method includes applying a first layer of a first powder based mix, including wood fibres and a thermosetting binder, on a core; applying a liquid substance on the first powder based mix; drying the first powder based mix; turning the core with the dried first powder based mix such that the first powder based mix points downwards; applying a second layer on the upper part of the core; and curing the first and second layers by providing heat and pressure, wherein the first layer forms the balancing and/or protective layer and the second layer forms the decorative surface layer in the building panel.

A process of depositing a hydrophobic or superhydrophobic film on a surface of a substrate, effected by spraying onto the substrate's surface a solution comprising a fatty acid and an organic solvent, is provided. Substrates and articles-of-manufacturing containing the substrates, having a hydrophobic or superhydrophobic coating/film deposited thereon, obtainable or prepared by the process, are also provided. The process is usable for reducing a load of a pathogenic microorganism and/or for preventing biofilm formation on and/or in the substrates or articles-of-manufacturing containing same.

A method and composition are shown for treating a variety of different substrates with a sealant coating composition which provides a long lasting protective barrier on a selected substrate. First a sealant composition is formulated by combining a micro-crystalline wax with an organic solvent pre-mixture blend. Next, the selected substrate is contacted with the sealant composition and the solvent blend is allowed to flash away, leaving behind a substantially solvent free micro-crystalline wax residue barrier. The solvent blend can be a mixture of hexane and xylene but is not limited to these two particular solvents.

A PVC veneer-overlaid plywood and a manufacturing method thereof. The PVC veneer-overlaid plywood includes a medium-and-high-density fiberboard, a PVC membrane and an ultraviolet paint. A hard, wear-resistant and highly transparent film will be formed after the ultraviolet paint sprayed on the PVC membrane is cured by ultraviolet light, so that the scratch-resistant, scratch-preventing, heat-resistant and durable effect is realized. In addition, the cured ultraviolet paint is stable in color; the flat mirror effect is better; and the paint film is full and free from wrinkles, so that the color uniformity of the surface of the coated film is effectively increased. It is convenient and quick to coat the surface of the plywood with the PVC membrane. The ultraviolet paint is high in coating efficiency, is low in coating cost, and is environmentally friendly.

A process for producing nano veneers generally involving: placing a veneer to be treated in a vacuum vessel; adding a nano carbon powder and nano silicon dioxide suspension in the vacuum vessel; reducing the pressure in the vessel over a first period of time; increasing the pressure in the vessel; letting the contents of the vessel rest over a second period of time. The veneer may optionally be subjected to ultrasonic treatment, ultraviolet solidification treatment, or subsequent pressurization treatments to obtain the final nano veneer product. As a result, veneer manufactured using embodiments of the present invention will have the advantages of high strength, wear resistance, pollution resistance, acid and alkali resistance, water segregation and decay resistance.

A kit of parts is provided, comprising: in one part a) a water-borne stain; and, in another part b) a water-immiscible organic solvent-borne stain, wherein said water-borne stain is essentially free of resin and further contains at least one water-miscible organic solvent. Additionally, a method of coloring a wooden substrate is described, comprising the steps of: a) applying a water-borne stain to a surface of the wooden substrate, wherein the water-borne stain is essentially free of resin and comprises at least one water-miscible organic solvent; and thereafter b) applying a water-immiscible organic solvent-borne stain to said surface.

A flame-retardant wood substrate is made of a wood substrate with a glass-clear coating, impregnation, or filing primer, which each contain a flame retardant made of at least one compound selected from a plurality of phosphorus compounds, and a finish layer disposed thereon.

Disclosed is a method for treating a grained material. A nonlimiting example of the method includes the operations of providing a workpiece having grains, exasperating a surface of the workpiece to open the grains, applying at least one coat of a base paint to the exasperated surface, applying at least one layer of clear coat on the base paint, applying at least one of a glaze and a paint on the clear coat, and surface treating to reveal grains of the workpiece. Disclosed also are items of furniture and sheet materials treated by the aforementioned process.