Material	Acrylic - PMMA (plexiglas)
	PMMA (polymethyl-methacrylate) is an amorphous thermoplastic material with very good optical properties (as transparent as glass and it allows 92% of the sunlight to pass!). PMMA is hard, stiff and medium strong, easy to scratch, notch sensitive, but easy to polish. Exceptional outdoor performance, such as weather and sunlight resistance, without reduction neither of optical nor mechanical properties.
Danish Name	Acrylplast - PMMA (plexiglas)
Category	Plastics, Thermoplastics
Products	Tail light glass Exhibition case Folding chair Kitchen scale
Processes	Plastic moulding Plastic injection moulding Extrusion Vacuum forming
Similar materials	PC PS
Price	Medium cost plastic (see also Plastics general overview)
Environmen- tal notes	Creation: Production of 1 kg of PMMA requires the equivalent of about 2 kg of oil (raw material and energy). Use: - Disposal: Incineration in an incineration plant mainly produces water and carbon dioxide. Heating value is equivalent to 1/2 kg of oil.
Additional Info	PMMA tolerates weak acids and bases, but neither strong ones nor solvents or acetone.
Photo	Thomas Nissen (Computer graphics)
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