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2. Etching - Wikipedia

   en.wikipedia.org/wiki/Etching

   ferric chloride may be used for etching copper or zinc plates, whereas nitric acid may be used for etching zinc or steel plates. Typical solutions are 1 part FeCl 3 to 1 part water and 1 part nitric to 3 parts water. The strength of the acid determines the speed of the etching process. The etching process is known as biting (see also spit ...

3. Chemical milling - Wikipedia

   en.wikipedia.org/wiki/Chemical_milling

   Chemical milling or industrial etching is the subtractive manufacturing process of using baths of temperature-regulated etching chemicals to remove material to create an object with the desired shape. [1] [2] Other names for chemical etching include photo etching, chemical etching, photo chemical etching and photochemical machining. It is ...

4. Dentine bonding agents - Wikipedia

   en.wikipedia.org/wiki/Dentine_bonding_agents

   d) Primer system is designed to increase critical surface tension of dentin, which gets decreased after etching of acid. e) Bonding mechanism is when: Primer and bonding resin are applied to etched dentin, they penetrate the intertubular dentin, forming hybrid layer. They also penetrate and polymerize in open dentinal tubules, forming resin tags.

5. Etching (microfabrication) - Wikipedia

   en.wikipedia.org/wiki/Etching_(microfabrication)

   Etching tanks used to perform Piranha, hydrofluoric acid or RCA clean on 4-inch wafer batches at LAAS technological facility in Toulouse, France. Etching is used in microfabrication to chemically remove layers from the surface of a wafer during manufacturing. Etching is a critically important process module in fabrication, and every wafer ...

6. Photochemical machining - Wikipedia

   en.wikipedia.org/wiki/Photochemical_machining

   Photochemical machining (PCM), also known as photochemical milling or photo etching, is a chemical milling process used to fabricate sheet metal components using a photoresist and etchants to corrosively machine away selected areas. This process emerged in the 1960s as an offshoot of the printed circuit board industry.

7. Polyoxymethylene - Wikipedia

   en.wikipedia.org/wiki/Polyoxymethylene

   Special processes and treatments have been developed to improve bonding. Typically these processes involve surface etching, flame treatment, using a specific primer/adhesive system, or mechanical abrasion. Typical etching processes involve chromic acid at elevated temperatures. DuPont uses a patented process for treating acetal homopolymer ...

8. Primer (paint) - Wikipedia

   en.wikipedia.org/wiki/Primer_(paint)

   Primer reduces the number of paint coats needed for good coverage and even color. A thin layer of paint may still be permeable to water. Water can permeate into the wood and cause warping, mildew, or dry rot. Primer improves the waterproofing of the finish. [4] Primers are not used as part of a wood stain treatment because they obscure the wood ...

9. Anodizing - Wikipedia

   en.wikipedia.org/wiki/Anodizing

   Anodizing increases resistance to corrosion and wear, and provides better adhesion for paint primers and glues than bare metal does. Anodic films can also be used for several cosmetic effects, either with thick porous coatings that can absorb dyes or with thin transparent coatings that add reflected light wave interference effects.