A method of coating a substrate with a particulate coating composition is disclosed that creates a coated substrate having a controlled, nonuniform surface property profile that varies along at least one primary dimension. The substrate is positioned on a textured template. An effective amount of the particulate coating composition is buffed onto a surface of the substrate with the at least one orbital applicator moving in a plane parallel to surface in a plurality of directions relative to a point on the surface in an orbital manner while at least one process variable is changed during the coating of the substrate. Process variable that can be varied during coating include application time, application pressure, coating temperature, the contour of the textured template, orbital speed, web speed, and the particulate coating composition.

Provided herein is a solid hardener composition comprising the reaction product of (a) a novolac resin component, (b) a liquid epoxy resin, and (c) an epoxidized polyalkylene glycol. Also provided herein is a method of preparing a hardener composition, the method comprising (1) forming a reaction mixture comprising (a) a novolac resin component, (b) a liquid epoxy resin, and (c) an epoxidized polyalkylene glycol, and (2) isolating the reaction product of the reaction mixture. The solid hardener composition may be incorporated into a curable composition comprising at least one epoxy resin and used to produce, e.g., solid powder coatings.

This application provides a coating film having excellent durability and wear resistance that, when applied to a mold surface, has excellent releasability (non-adhesiveness) over a long period of time, and a fluoropolymer coating composition that is able to form such a coating film. The fluoropolymer coating composition contains a fluoropolymer and a fluoro oil, where the decomposition temperature of the fluoro oil is higher than the melting point of the fluoropolymer.

The present invention relates to a powder coating composition comprising an epoxy resin, a curing agent, a pigment, and a catalyst, wherein the pigment comprises an extender pigment having an average particle size of 1.0 μm to 8.0 μm, and the catalyst comprises an aliphatic imidazole compound and an aromatic imidazole compound.

In a powder coating process, a primer step is implemented prior to electrostatically applying the powder coating, either in advance of preheating the object to be coated or subsequent thereto, depending upon the selection of materials used in the object to be coated, the primer material being diluted fabric softener applied in a fine mist spray or fog to the object.

The present invention relates to a powder coating composition for preparing a dielectric coating. The powder coating composition includes: (a) an epoxy functional polymer; (b) a poly-carboxylic acid functional polyester polymer reactive with the epoxy functional polymer and which has an acid value of less than 100 mg KOH/g; and (c) a poly-carboxylic acid functional (meth)acrylate polymer reactive with the epoxy functional polymer. Further, if a colorant is present, the powder coating composition comprises 35 weight % or less of the colorant, based on the total solids weight of the coating composition.

A method of sealing surface imperfections on a sanded surface of a repair to a vehicle body is provided that includes an uncured layer of a formulation being applied to sanded cured body filler on the vehicle body. The formulation includes a polyester resin, a crosslinking agent, a solvent, and a particulate filler. The uncured layer is exposed to actinic radiation to induce cure of the uncured layer to form a sealing coating. The resulting seal coating has able to seal surface imperfections. A surface imperfection sealing formulation is also provided that includes a polyester resin and a multifunctional crosslinking agent. A solvent is provided. A photoinitiator renders the formulation curable upon exposure to ultraviolet light exposure. A particulate filler is also present in an amount to result in a formulation with an uncured viscosity of between 2600 and 3000 centipoises.

Provided is a coating film having excellent durability and wear resistance, and utility as mold surface release coating. The coating film has excellent releasability (non-adhesiveness) over a long period of time. Further provided is a coating composition capable of forming such a coating film, the coating composition containing a fluoropolymer and an oil that is a liquid at 25° C., wherein the decomposition temperature of the oil is higher than the melting point of the fluoropolymer.

In a powder coating process, a primer step is implemented prior to electrostatically applying the powder coating, either in advance of preheating the object to be coated or subsequent thereto, depending upon the selection of materials used in the object to be coated, the primer material being diluted fabric softener applied in a fine mist spray or fog to the object.

A powder coating material including a main material resin containing an epoxy resin; a phosphorus flame retarder; and at least one inorganic particulate substance selected from metal hydroxides and hydrous metal compounds. The inorganic particulate substance has an average particle size of 0.01 to 9 μm. The inorganic particulate substance is present in an amount of 80 to 200 parts by mass relative to 100 parts by mass of the main material resin.