Polymethyl methacrylate (PMMA)

Alternative and trade names
Altuglas®, Acrylite®, Cyrolite®, Plexiglas®
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Its outstanding resistance proprieties to mechanical damage and discoloration by UV rays provide an unsurpassed surface hardness (Rockwell M-Scale) and allow an higher heat resistance than impact grades. Different grades including medical and impact modified are available.

This material data has been provided by M-Base.

"Typical" values were obtained via a literature search. "Predicted" values were imputed via artificial intelligence technology. While we have placed significant efforts in ensuring data accuracy, "typical" and "predicted" data should be considered indicative and verified by appropriate material testing. Please do contact us if additional information on the the predicted data method is required.
All metrics apply to room temperature unless otherwise stated. SI units used unless otherwise stated.
Equivalent standards are similar to one or more standards provided by the supplier. Some equivalent standards may be stricter whereas others may be outside the bounds of the original standard.

Ashby charts

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1.17 - 1.19 g/cm³

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Elastic modulus

3.1 - 3.3 GPa

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2.0 - 10.0 %

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Impact strength, Charpy notched

1.2 - 2.0 kJ/m²

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Impact strength, Charpy unnotched

11 kJ/m²

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22 kJ/m²

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Tensile strength

30.0 - 80.0 MPa

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at 2-10% strain



Coefficient of thermal expansion

6e-05 - 0.00012 1/K

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Specific heat capacity

1470 J/(kg·K)

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Thermal conductivity

0.18 - 0.19 W/(m·K)

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UL 94 HB



Dielectric constant

2.7 [-]

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3.7 [-]

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Electrical resistivity

10000000000000 Ω·m

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Technological properties

Application areas

Light guides, glasses, lenses, solar technology, optical data storage

Processing methods

Injection molding, extrusion, thermoforming