Explanation of Common Terms Used in Coating Application施工

Huicong Surface Treatment Network: Fillers: Fillers, also known as extenders or bulk pigments, include materials such as chalk (light calcium carbonate), talc, white carbon black, and barium sulfate. These are nearly all white powders with high tinting strength and opacity. In coatings, they can enhance the weather resistance of the coating film and reduce the likelihood of chalking. They are also commonly used in putty formulations. Pigments: Pigments, also called colorants, are categorized into inorganic and organic pigments. Inorganic pigments boast high opacity, high density, and excellent light- and heat-resistance; examples include titanium dioxide, lithopone, iron oxide red, iron oxide yellow, and ultramarine blue. Organic pigments, on the other hand, offer vivid colors, high tinting strength, and superior chemical resistance; examples include fast-yellow pigments, phthalocyanine pigments, toluidine red, and rhodamine B.

Clear Oil: Also known as cooked oil, clear oil is a liquid film-forming substance obtained by thermally refining drying oils (such as tung oil and linseed oil) or semi-drying oils (such as soybean oil), to which an appropriate amount of drying agent has been added. Clear oil can be applied directly to the surface of objects, or it can be used to dilute thick paints, or mixed with pigments to prepare primers or fillers. The clear oil primarily used for applying powder coatings is made from cooked tung oil.

Additives: Additives are also referred to as additives. Examples include defoamers, dispersants, emulsifiers, thickeners, plasticizers, antifungal agents, and fillers used in the formulation of coatings.

Tinting strength: Tinting strength refers to the ability of a pigment to exhibit varying degrees of color intensity. The tinting strength determines the amount of pigment required in a coating—pigments with high tinting strength require smaller amounts, while those with low tinting strength require larger amounts. Tinting strength is expressed as a percentage.

Hue: The overall relationship among colors constitutes the tone of a color scheme, which is referred to as hue. In a hue, the dominant color is known as the main tone or keynote.

Latex: Latex is also known as "latex emulsion." Latex refers to an emulsified colloidal system in which polymer particles are uniformly dispersed in water. The particle size of the colloid typically ranges from 0.15 to 5 μm. Through emulsion polymerization, monomers can be converted into synthetic latex under the dispersing action of an emulsifier. It serves as the primary base material for manufacturing latex paints and emulsion paints.

Polymer: A polymer is a compound composed of many repeating units. Those with low molecular weights are called oligomers, while those with molecular weights ranging from several thousand to several million or more are referred to as polymers.

Copolymer: A polymer formed by the copolymerization of two or more different monomers. Examples include a copolymer of vinyl acetate and vinyl chloride, as well as a copolymer of acrylates and styrene.

Coating: A coating, also known as a film, refers to the film formed when a coating material is applied to the surface of an object using an appropriate method under specific conditions. Coatings are typically divided into a primer layer, an intermediate coat, a topcoat, and a final topcoat.