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2. Paint - Wikipedia

   en.wikipedia.org/wiki/Paint

   Paint is a liquid pigment that, after applied to a solid material and allowed to dry, adds a film-like layer. As art, this is used to create an image, known as a painting. Paint can be made in many colors and types. Most paints are either oil-based or water-based, and each has distinct characteristics.

3. Rust - Wikipedia

   en.wikipedia.org/wiki/Rust

   Rust is an iron oxide, a usually reddish-brown oxide formed by the reaction of iron and oxygen in the catalytic presence of water or air moisture. Rust consists of hydrous iron (III) oxides (Fe 2 O 3 ·nH 2 O) and iron (III) oxide-hydroxide (FeO (OH), Fe (OH) 3 ), and is typically associated with the corrosion of refined iron .

4. Haematoxylin - Wikipedia

   en.wikipedia.org/wiki/Haematoxylin

   Haematoxylin stain formulations can be broadly classified based on how the haematoxylin is oxidized (or ripened) and by choice of the mordant used. Haematoxylin stain formulations may either be natural oxidized by exposure to air and sunlight, or more commonly, especially in commercially prepared solutions, [7] chemically oxidized using sodium ...

5. Hydraulic fluid - Wikipedia

   en.wikipedia.org/wiki/Hydraulic_fluid

   Hydraulic fluid being poured into a storage container. A hydraulic fluid or hydraulic liquid is the medium by which power is transferred in hydraulic machinery. Common hydraulic fluids are based on mineral oil or water. [1] Examples of equipment that might use hydraulic fluids are excavators and backhoes, hydraulic brakes, power steering ...

6. Glaze (painting technique) - Wikipedia

   en.wikipedia.org/wiki/Glaze_(painting_technique)

   A glaze is a thin transparent or semi-transparent layer on a painting which modifies the appearance of the underlying paint layer. Glazes can change the chroma, value, hue and texture of a surface. Glazes consist of a great amount of binding medium in relation to a very small amount of pigment. [1] Drying time will depend on the amount and type ...

7. Oil-based mud - Wikipedia

   en.wikipedia.org/wiki/Oil-based_mud

   Oil-based mud [1] is a drilling fluid used in drilling engineering. It is composed of oil as the continuous phase and water as the dispersed phase in conjunction with emulsifiers, wetting agents and gellants. The oil base can be diesel, kerosene, fuel oil, selected crude oil or mineral oil . The requirements are a gravity of 36–37 API, a ...