Coating compositions for coating an oilfield operational component, and related methods, may include in some aspects a coating composition having a trifunctional silane, a silanol, and a filler. The coating composition may be applied to a surface of the oilfield operational component that is configured to be exposed to a fluid. The coating composition may be applied to at least partially cover or coat the surface. The coating composition may be configured to chemically bond with a cured primer composition that includes an epoxy.

A low friction, wear-resistant surface operable at high temperatures and high loads with a low coefficient of friction including boron nitride and graphene-oxide on steel or nanodiamonds and graphene on aluminum. The low friction, wear-resistant surface remains with a coefficient of friction in the superlubric regime at temperatures in between about 200° C. and 970° C.

Coating compositions for coating an oilfield operational component, and related methods, may include in some aspects a coating composition having a trifunctional silane, a silanol, and a filler. The coating composition may be applied to a surface of the oilfield operational component that is configured to be exposed to a fluid. The coating composition may be applied to at least partially cover or coat the surface. The coating composition may be configured to chemically bond with a cured primer composition that includes an epoxy.

Coating compositions for coating an oilfield operational component, and related methods, may include in some aspects a coating composition having a trifunctional silane, a silanol, and a filler. The coating composition may be applied to a surface of the oilfield operational component that is configured to be exposed to a fluid. The coating composition may be applied to at least partially cover or coat the surface. The coating composition may be configured to chemically bond with a cured primer composition that includes an epoxy.

In a process for producing a lacquer-coated electric sheet strip a first insulation lacquer layer is applied wet across at least one side of an electric sheet strip. Across the wet first insulation lacquer layer a wet second insulation lacquer layer is applied. In a drying oven drying of the first insulation lacquer layer and the second insulation lacquer layer is performed.

The present invention provides an air exhaust or air-and-smoke exhaust pipe for a clean room and a manufacturing method thereof. The air exhaust or air-and-smoke exhaust pipe is a pipe that satisfies FM4922, FM4910, or another equivalent standard and that is used for exhausting nonflammable chemical gas and corrosive vapor or nonflammable chemical gas, corrosive vapor and smoke in fire. The manufacturing method for the air exhaust or air-and-smoke exhaust pipe is: coating an inner part of a pre-manufactured metal pipe with a liquid coating that can be initially dried at normal temperature or low temperature to obtain an inner coating pipe; and baking the inner coating pipe at a temperature not exceeding 250° C. after the coating is initially dried, thus the coating is completely dried to obtain a finished product.

A process for manufacture of a profiled non-stick pan with a concave-convex pattern, which includes the following steps: preparing a flat blank for forming a pan body; screen printing a layer of ink with a predetermined pattern on a surface of the blank for a pan body, then drying and curing the ink; etching, by an etching process, the surface of the blank, on areas of the surface not covered by the ink, then cleaning and drying the blank, and retaining the ink; spraying non-stick pan coating on the blank, then baking the blank at high temperature, to enable the ink to automatically peel off at high temperature; pressing and stretching the blank to form a profiled pan body, then deburring and polishing on an edge of the pan body.

The present invention addresses the problem of providing, for example, a novel metal surface treatment agent which can form a film capable of maintaining antimicrobial performance on or over a surface of a metal material. The problem can be solved by a metal surface treatment agent containing: a prescribed copolymer (A) obtained by polymerizing a compound (a) represented by the following Formula (1) [in Formula (1), R.sup.1 and R.sup.2 each independently represent a hydrogen atom or an alkyl group having 1 to 4 carbon atoms, R.sup.3 and R.sup.4 each independently represent an alkyl group having 1 to 5 carbon atoms, and X— represents an ion of a halogen atom, or an acid anion] with a compound (b) represented by the following Formula (2) or (3) [in Formula (2), R.sup.5 represents a hydrogen atom or a methyl group, R.sup.6 and R.sup.7 each independently represent a hydrogen atom, an alkyl group having 1 to 4 carbon atoms, a benzyl group, or a hydroxyalkyl group having 2 or 3 carbon atoms; and, in Formula (3), R.sup.8 represents a hydrogen atom or a methyl group]; and a water-soluble or water-dispersible resin (B).

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A method for forming a multilayer coating film, the method including the following steps (1) to (3): (1) applying a colored paint (X) to a substrate to form a colored coating film whose lightness L* value in the L*a*b* color space is 5 or less, (2) applying an effect pigment dispersion (Y) to the colored coating film formed in step (1) to form an effect coating film, and (3) applying a clear paint (Z) to the effect coating film formed in step (2) to form a clear coating film, wherein the effect pigment dispersion (Y) contains water, a rheology control agent (A), and a flake-effect pigment (B), the flake-effect pigment (B) being an effect pigment in which a transparent or translucent base material is coated with a metal oxide, and the effect pigment dispersion (Y) having a solids content of 0.1 to 15 mass %; the obtained multilayer coating film has a Y value (Y5) of 50 or more, the Y value (Y5) representing a luminance in the XYZ color space based on spectral reflectance when light illuminated at an angle of 45 degrees with respect to the multilayer coating film is received at an angle of 5 degrees deviated from specular reflection light in the incident light direction; and the obtained multilayer coating film has a lightness L* value (L*25) of 25 or less in the L*a*b* color space when light illuminated at an angle of 45 degrees with respect to the multilayer coating film is received at an angle of 25 degrees deviated from specular reflection light in the incident light direction.

A primer for an ETFE coating material containing: ethylene/tetrafluoroethylene copolymer (ETFE) particles; a heat-resistant resin; and a nonionic surfactant. The ETFE particles have an average particle size of 5.0 to 50 μm. The heat-resistant resin includes at least one selected from polyamide-imide resin, polyethersulfone resin, and polyimide resin. The ETFE particles and the heat-resistant resin have a solid content ratio by mass of 60:40 to 90:10. The nonionic surfactant includes a polyoxyethylene alkyl ether surfactant. Also disclosed is a primer film obtained from the primer for an ETFE coating material as well as a coated article.