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2. Polycarbonate - Wikipedia

   en.wikipedia.org/wiki/Polycarbonate

   The main polycarbonate material is produced by the reaction of bisphenol A (BPA) and phosgene COCl 2. The overall reaction can be written as follows: The first step of the synthesis involves treatment of bisphenol A with sodium hydroxide, which deprotonates the hydroxyl groups of the bisphenol A. [6] (HOC 6 H 4) 2 CMe 2 + 2 NaOH → Na 2 (OC 6 ...

3. Twinwall plastic - Wikipedia

   en.wikipedia.org/wiki/Twinwall_plastic

   Although single layer polycarbonate sheeting is more flexible than polycarbonate in twinwall configuration, it still retains significant advantages over alternative materials, including glass. A typical 6mm sheet has a density of 0.72 g/cm^2 [6] and a thermal insulation R value of 0.3 m^2°C/W, while allowing 80% of visible light pass through. [7]

4. Vapor polishing - Wikipedia

   en.wikipedia.org/wiki/Vapor_polishing

   Plastics that respond well to vapor polishing are polycarbonate, acrylic, polysulfone, PEI, and ABS. The technique is also being used to improve the surface of objects created with 3D printing techniques. As the printer deposits layer upon layer of material to build the object, the surface is often not entirely smooth.

5. Poly(methyl methacrylate) - Wikipedia

   en.wikipedia.org/wiki/Poly(methyl_methacrylate)

   PMMA is also known as acrylic, acrylic glass, as well as by the trade names and brands Crylux, Hesalite, Plexiglas, Acrylite, Lucite, and Perspex, among several others . This plastic is often used in sheet form as a lightweight or shatter-resistant alternative to glass. It can also be used as a casting resin, in inks and coatings, and for many ...

6. Acrylic embedment - Wikipedia

   en.wikipedia.org/wiki/Acrylic_embedment

   Polishing is the next step in the process. It is mostly done by hand. This brings out the luster and high gloss of the acrylic not previously seen during production. A rough buffing is administered to remove all sanding lines. A final polishing then brings out the bright crystal-like finish. The production of the acrylic embedment is completed.

7. File (tool) - Wikipedia

   en.wikipedia.org/wiki/File_(tool)

   The cut of the file refers to how fine its teeth are. They are defined as (from roughest to smoothest): rough, middle, bastard, second cut, smooth, and dead smooth. A single-cut file has one set of parallel teeth while a cross-cut or double-cut file has a second set of cuts forming diamond shaped cutting surfaces. [1]

8. Cast acrylic - Wikipedia

   en.wikipedia.org/wiki/Cast_acrylic

   Cast acrylic has a better ability to be reworked hot and it is known for its superior surface finish and optical properties. Also cast acrylic is more scratch resistant than extruded acrylic. Cast acrylic is also preferred over extruded in applications that require machinings, such as turning on Engine Lathe or milling/drilling.

9. Acrylonitrile styrene acrylate - Wikipedia

   en.wikipedia.org/wiki/Acrylonitrile_styrene_acrylate

   ASA can be made by either a reaction process of all three monomers (styrene, acrylonitrile, acrylic ester) or a graft process, although the graft process is the typical method. A grafted acrylic ester elastomer is introduced during the copolymerization of styrene and acrylonitrile. The elastomer is introduced as a powder. [11]