Polymethyl acrylate is a type of polymer that is often used in various industries, including the paint, adhesives, coatings, and cosmetics sector. It is a versatile material that can be used for various purposes. Some of the synonyms for polymethyl acrylate include poly(methyl acrylate), PMA, and acrylic resin. Other comparable materials that have similar properties to polymethyl acrylate include polymethyl methacrylate (PMMA), also known as acrylic glass, which is a transparent thermoplastic, and polystyrene (PS), which is a thermoplastic polymer that is often used in packaging materials. All of these materials have different properties and applications, but they share the similarities of being a polymer and being used in various industrial applications.