Polymethyl methacrylate (PMMA)

PMMA (Polymethyl methacrylate) stands out from other plastics due to its high light transmission, its extremely long service life, its specific properties such as high resistance to UV light and weathering and unlimited coloring options. Added to this, PMMA shows the greatest surface hardness of all thermoplastics. It can be fabricated by means of all thermoforming methods, and therefore offers huge creative scope. Another major benefit is that PMMA is 100% recyclable, which makes an essential contribution to saving natural resources.

One of the world’s best-known brands of plastic is PLEXIGLAS®, It has become the very embodiment of acrylic. PLEXIGLAS® was invented in Darmstadt; Germany in 1933 by Dr. Otto Röhm.

More Information on PMMA


  • History

    • 1901: Otto Röhm, co-founder of today's Evonik Röhm GmbH, first addressed the topic of "polymers of acrylic acid" in his dissertation
    • 1930s: Otto Röhm made essential decisions which would lead to the development of PMMA as a commercial material.  When Röhm received the first PMMA product sample, he was convinced the material would be suited for a wide range of applications.
    • 1933: PLEXIGLAS®, as Röhm called the brilliant new synthetic material, came on the market and was awarded a Gold medal at the World Expo in Paris four years later
    • 1935: the first injection moulding compounds were made to supplement cast panels
    • 1950s: these compounds became the material of choice for automotive rear light covers in place of glass
    • Today: PLEXIGLAS® is now widely used in a range of applications including patio doors and conservatories, LCD display screens and the tent roof of the Olympic Stadium in Munich, Germany.
  • Properties

  • Applications

  • Processes

  • Recycling and Recovery

Types of plastics

Did you know ?
  • Researchers at Texas A&M University have developed a spongy plastic that could help regenerate broken bones.
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