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== Acrylic == ...is a type of plastic, more specifically a synthetic polymer derived from [[acrylic acid]].

...hly takes the shape of a convex shell and is made of medical grade plastic acrylic. ...the advent of [[moulding]] techniques and the use of new materials like [[glass]] and [[plastic]].

...ining an [[aquarium]], usually constructed of [[glass]] or high-strength [[acrylic]]. Fishkeeping is a popular hobby, practiced by [[aquarists]], and is also

...id gas permeable lenses are made from silicone, fluoropolymers, or acrylic glass.