Styrene Methyl Methacrylate (SMMA)

Alternative and trade names
NAS®

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Description

Transparent styrene acrylic copolymers are a premium choice for applications demanding a strong, stiff, water-clear plastic. It provides excellent thermal stability, better alcohol resistance, and less molded in stress than acrylic as well as good flowability.

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.

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Properties

General

Property	Value
Density	1.03 - 1.13 g/cm³ Show Material materials with Density of 1.03 - 1.13 g/cm³

Mechanical

Property	Value	Comment
Elastic modulus	3.1 - 3.4 GPa Show Material materials with Elastic modulus of 3.1 - 3.4 GPa
Elongation	2.0 - 3.0 % Show Material materials with Elongation of 2.0 - 3.0 %
Impact strength, Charpy notched	1.5 - 2.5 kJ/m² Show Material materials with Impact strength, Charpy notched of 1.5 - 2.5 kJ/m²
Impact strength, Charpy unnotched	12 kJ/m² Show Material materials with Impact strength, Charpy unnotched of 12 kJ/m²
	15 kJ/m² Show Material materials with Impact strength, Charpy unnotched of 15 kJ/m²
Tensile strength	60.0 - 70.0 MPa Show Material materials with Tensile strength of 60.0 - 70.0 MPa	at 2-3% strain

Thermal

Property	Value
Flammability	UL 94 HB

Optical

Property	Value
Transparency	yes

Technological properties

Property

Application areas

Medical devices, office accessories, water filters, food boxes, diabetes devices

Processing methods

injection molding, extrusion

Styrene Methyl Methacrylate (SMMA)

Description

Ashby charts

Applications

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Properties