This material is commonly known as acrylic but is also known under tradenames such as Perspex, Lucite, Plexiglass and Diakon. It was introduced by ICI in the early 1930s as a cast sheet material, Perspex. It was initially available only as sheet and cast rod which were fabricated into a wide variety of items by machining, thermoforming and engraving.
It is a hard, water-white material which takes a good gloss. Its high light transmission and ability to ‘pipe’ light make it ideal for illuminated signs for advertising and display. A full colour range is possible.The ability to polymerise methyl methacrylate in simple moulds using a polymer / monomer slurry made it ideal for producing dentures and for embedding objects for display. Acrylic baths were introduced into Australia in 1947 but it was a further 10 years before they appeared in the UK.
Polymethyl methacrylate moulding materials were introduced later, an important early use was in the two-tone coloured GPO telephone which replaced the black bakelite version in the early 1960s.
Polymethyl methacrylate admin 2016-12-06T05:35:20+00:00