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  2. Thermal spraying - Wikipedia

    en.wikipedia.org/wiki/Thermal_spraying

    Plasma transferred wire arc (PTWA) is another form of wire arc spray which deposits a coating on the internal surface of a cylinder, or on the external surface of a part of any geometry. It is predominantly known for its use in coating the cylinder bores of an engine, enabling the use of Aluminum engine blocks without the need for heavy cast ...

  3. Conversion coating - Wikipedia

    en.wikipedia.org/wiki/Conversion_coating

    A conversion coating is a chemical or electro-chemical treatment applied to manufactured parts that superficially converts the material into a thin adhering coating of an insoluble compound. These coatings are commonly applied to protect the part against corrosion , to improve the adherence of other coatings, for lubrication , or for aesthetic ...

  4. Metallizing - Wikipedia

    en.wikipedia.org/wiki/Metallizing

    Resistance heating, electron beam, or plasma heating is used to vaporize the coating metal. Vacuum metallizing was used to deposit aluminum on the large glass mirrors of reflecting telescopes, such as with the Hale Telescope. Thermal spray processes are often referred to as metallizing. Metals applied in such a manner provide corrosion ...

  5. Chemical coloring of metals - Wikipedia

    en.wikipedia.org/wiki/Chemical_coloring_of_metals

    Black for aluminum. Boil a solution of 20 g ammonium molybdate and 5 g of sodium thiosulfate in a liter of water, immerse the objects, rinse, dry, wax or lacquer after the development of color. [31] Lustre colours. Use a solution of 280 g of sodium thiosulphate, 25 g of cupric acetate and 30 g of citric acid. It can be used on copper and its ...

  6. Coating - Wikipedia

    en.wikipedia.org/wiki/Coating

    Limiting coating area is crucial in some applications, such as printing. "Roll-to-roll" or "web-based" coating is the process of applying a thin film of functional material to a substrate on a roll, such as paper, fabric, film, foil, or sheet stock. This continuous process is highly efficient for producing large volumes of coated materials ...

  7. Parchment vs. Wax Paper: Do You Know Which One Goes in ... - AOL

    www.aol.com/parchment-vs-wax-paper-know...

    According to the brand Reynolds, parchment is "paper with a food-safe silicone coating that makes it heat-resistant and non-stick." It's common to find it in rolls allowing you to measure it ...

  8. Metallised film - Wikipedia

    en.wikipedia.org/wiki/Metallised_film

    The coating also reduces the permeability of the film to light, water and oxygen. The properties of the film remain, such as higher toughness, the ability to be heat sealed, and a lower density at a lower cost than an aluminium foil. This gives metallised films some advantages over aluminium foil and aluminium foil laminates.

  9. US FDA proposes standardized testing to detect asbestos in ...

    www.aol.com/news/us-fda-proposes-standardized...

    Asbestos, a known human carcinogen, can be injurious to consumers if found in talc-containing cosmetic products as there is no established "safe level" threshold for exposure to the substance. If ...

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