A method for reinforcing a fouling control coating of the invention comprises a step of forming a reinforcing coating (O) by applying and curing a reinforcing coating composition [o], and a step of providing a fouling control coating (X) formed by applying and curing a fouling control coating composition [x], onto the reinforcing coating (O), the reinforcing coating composition [o] comprising an organopolysiloxane (AO) having two or more silanol groups or hydrolyzable groups in the molecule, and a pyrithione salt compound (BO), the fouling control coating composition [x] comprising an organopolysiloxane (AX) having two or more silanol groups or hydrolyzable groups in the molecule, and an antifouling agent (BX), the reinforcing coating (O) giving reinforcement to the coating (X) adhering thereto. According to the present invention, high impact resistance can be imparted to fouling control coatings. As a result, the peeling, chipping and loss of the coatings by external physical damages which are often encountered in the conventional coatings can be remedied, and stable antifouling performance can be obtained.

To provide a surface treatment method for hydrophilizing a surface of a treatment target and preventing charging by a simple and easy method and an anti-static agent. The present invention provides a surface treatment method. The method comprises an anti-static treatment step of coating a treatment target with an anti-static agent comprising an electrolyte (e1), a hydrophilic polymer (a) and water, and having electrical conductivity of 15 mS/m or more to obtain a coated film (A), drying the coated film (A) to obtain an anti-static layer, and a hydrophilizing treatment step of coating the anti-static layer with a hydrophilizing treatment agent comprising a hydrophilic polymer (b) and an alcohol to obtain a coated film (B), and drying the coated film (B), followed by rinsing thereof.

A piston for an internal combustion engine may include a shaft. A dual-layer coating with an inner layer and an outer layer may be applied to the shaft. The inner layer may include organic binders and solid lubricants. The inner layer may also include hard material particles of at least one of tungsten disulphide (WS.sub.2), tungsten carbide (WC), silicon carbide (SiC), and aluminium oxide (Al.sub.2O.sub.3). The outer layer may include inorganic binders, may be air-hardening, and may have a lower wear resistance than the inner layer.

An advantageous method for treating the surface of a metallic substrate made of aluminum or an aluminum alloy, comprising the following steps: providing a water-based mixture with a sol, comprising alkoxy silanes of general chemical formula Si(OR).sub.4 and organoalkoxy silanes of general chemical formula R″Si(OR′).sub.3, in which R and R′ are linear or branched, short-chained hydrocarbon groups with at least one hydroxyl group and R″ is an organic group with a glycidoxy-, merkapto-, amino-, methacryl-, allyl- and/or vinyl-group, applying the mixture to the surface of the metallic substrate and at least in sections, hardening the mixture with a formation of a sol-gel coating connected to the metallic substrate.

A pigment-containing coating formulation combines (i) polymeric wetting and dispersing additives that absorb onto pigment particles to surround pigment particles to prevent or limit sedimentation; (ii) a self-crosslinking acrylic dispersion with low surfactants and long open time, allowing the pigment to lay flat instead of migrating and agglomerating at the surface; and (3) rheology modification facilitating good Newtonian flow behavior and balanced thixotropic thickening of the coating for improved brushability, flow and leveling for improved appearance with keener light reflection and more uniform pearlescent and metallic effect appearance.

A method for applying a waterproof coating to a transducer component includes the steps of cleaning and promoting bonding on the transducer component by immersing the component in a mixture of isopropyl alcohol, deionized water, and siline. The component is then air dried and rinsed in pure isopropyl alcohol. After drying, the component is vacuum baked and subjected to a vacuum for twelve hours. A parylene coating is provided to the component surface. The parylene coating is abraded, and the surface is rinsed with pure isopropyl alcohol. After drying, polyurethane is provided on the abraded parylene surface. The polyurethane is cured to form a waterproof coating on the transducer component. In further embodiments, a second parylene coating can be provided outside the polyurethane.

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.

Described herein is a coated building panel that comprises a side surface that is textured and exhibits a white and/or color. The building panel comprising an upper surface opposite a lower surface and a side surface extending between the upper surface and the lower surface, a coating applied to the side surface, the coating comprising an inorganic particle having a disk shape and an ionic dispersant comprising an ionic group that are present on a repeating unit and the ionic dispersant comprising at least two of the repeating units.

The invention relates to a method of manufacturing a multilayer laminate, the multilayer laminate obtained by the method according to the invention and to forming an extrusion primer for making the multilayer laminate using an aqueous coating composition comprising at least one specific copolymer.

Aqueous antimicrobial coating compositions are disclosed comprising at least one organosilane homopolymer, present as a distribution of polymer chain lengths, and optionally at least one amine. A method of preparing an antimicrobial coating comprises coating a surface with the aqueous antimicrobial coating composition and allowing the composition to dry into a film that exhibits residual antimicrobial efficacy against microorganisms even after mechanical abrasion of the coating. The organosilane homopolymer may comprise only 3-aminopropylsilanetriol homopolymer, mixtures of 3-aminopropylsilanetriol homopolymer, 3-chloropropylsilanetriol homopolymer and 3-(trihydroxysilyl)propyl dimethyloctadecyl ammonium chloride homopolymer, or any one of various unique organosilane homopolymers having multiple amine functionality.