Technical datasheet

ACRYREX® CM-205

Supplied byChi Mei- Last Updated on Oct 18, 2022

ACRYREX® CM-205 by Chi Mei is a high viscosity polymethylmethacrylate (PMMA) grade. Exhibits heat resistance, high temperature resistance, heat distortion temperature up to 100°C and tough mechanical strength.
  • Possesses good cleanliness, high transparency and gloss, stable physical, chemical, optical and electrical properties.
  • Designed for injection molding and extrusion plates, rods and tubes applications.
  • ACRYREX® CM-205 is especially suitable for external automotive light casings, sunglasses and digital watch casings.
  • Complies with PFOA, PFOS, RoHS, UL 94 HB flame rating and SVHC.
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Benefits

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Compliance

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ACRYREX® CM-205 properties

Electrical properties

PropertiesValue & unitTest conditionTest method
Arc Resistance0.0 Visible After LoginVisible After LoginVisible After Login
Comparative Tracking Index (CTI)0.0 Visible After LoginVisible After LoginVisible After Login
High Amp Arc Ignition (HAI)0.0 Visible After LoginVisible After LoginVisible After Login
High Amp Arc Ignition (HAI)0.0 Visible After LoginVisible After LoginVisible After Login
High Amp Arc Ignition (HAI)0.0 Visible After LoginVisible After LoginVisible After Login
High Voltage Arc Tracking Rate (HVTR)0.0 Visible After LoginVisible After LoginVisible After Login
Hot-wire Ignition (HWI)0.0 Visible After LoginVisible After LoginVisible After Login
Hot-wire Ignition (HWI)0.0 Visible After LoginVisible After LoginVisible After Login
Hot-wire Ignition (HWI)0.0 Visible After LoginVisible After LoginVisible After Login

Flammability properties

PropertiesValue & unitTest conditionTest method
Flame Rating, UL 940.0 Visible After LoginVisible After LoginVisible After Login
Flame Rating, UL 940.0 Visible After LoginVisible After LoginVisible After Login
Flame Rating, UL 940.0 Visible After LoginVisible After LoginVisible After Login
Flame Rating, UL 940.0 Visible After LoginVisible After LoginVisible After Login
Flame Rating, UL 940.0 Visible After LoginVisible After LoginVisible After Login
Flame Rating, UL 940.0 Visible After LoginVisible After LoginVisible After Login
Flash Point0.0 Visible After LoginVisible After LoginVisible After Login

Mechanical properties

PropertiesValue & unitTest conditionTest method
Flexural Modulus0.0 Visible After LoginVisible After LoginVisible After Login
Flexural Strength0.0 Visible After LoginVisible After LoginVisible After Login
Impact Strength, Notched Charpy0.0 Visible After LoginVisible After LoginVisible After Login
Impact Strength, Notched Izod0.0 Visible After LoginVisible After LoginVisible After Login
Tensile Elongation0.0 Visible After LoginVisible After LoginVisible After Login
Tensile Strength at Break0.0 Visible After LoginVisible After LoginVisible After Login

Other properties

PropertiesValue & unitTest conditionTest method
Tensile Strength at Yield0.0 Visible After LoginVisible After LoginVisible After Login

Physical properties

PropertiesValue & unitTest conditionTest method
Density0.0 Visible After LoginVisible After LoginVisible After Login
Linear Mold Shrinkage0.0 Visible After LoginVisible After LoginVisible After Login
Melt Mass-Flow Rate (MFR or MFI = Melt Flow Index or MI = Melt Index)0.0 Visible After LoginVisible After LoginVisible After Login

Thermal properties

PropertiesValue & unitTest conditionTest method
CTE, Linear, Parallel to Flow0.0 Visible After LoginVisible After LoginVisible After Login
CTE, Linear, Parallel to Flow0.0 Visible After LoginVisible After LoginVisible After Login
Decomposition Temperature0.0 Visible After LoginVisible After LoginVisible After Login
Heat Deflection Temperature (HDT)0.0 Visible After LoginVisible After LoginVisible After Login
Heat Deflection Temperature (HDT)0.0 Visible After LoginVisible After LoginVisible After Login
Melting Point0.0 Visible After LoginVisible After LoginVisible After Login
UL RTI, Electrical0.0 Visible After LoginVisible After LoginVisible After Login
UL RTI, Electrical0.0 Visible After LoginVisible After LoginVisible After Login
UL RTI, Electrical0.0 Visible After LoginVisible After LoginVisible After Login
UL RTI, Mechanical with Impact0.0 Visible After LoginVisible After LoginVisible After Login
UL RTI, Mechanical with Impact0.0 Visible After LoginVisible After LoginVisible After Login
UL RTI, Mechanical with Impact0.0 Visible After LoginVisible After LoginVisible After Login
UL RTI, Mechanical without Impact0.0 Visible After LoginVisible After LoginVisible After Login
UL RTI, Mechanical without Impact0.0 Visible After LoginVisible After LoginVisible After Login
UL RTI, Mechanical without Impact0.0 Visible After LoginVisible After LoginVisible After Login
Vicat Softening Temperature0.0 Visible After LoginVisible After LoginVisible After Login
Vicat Softening Temperature0.0 Visible After LoginVisible After LoginVisible After Login

ACRYREX® CM-205 Processing Guidelines

Injection Molding Processing Guidelines

PropertiesValue & unitTest conditionTest method
Mold TemperatureVisible After LoginVisible After Login
Pre-Drying TemperatureVisible After LoginVisible After Login

Injection molding Processing Guidelines

PropertiesValue & unitTest conditionTest method
Barrel TemperatureVisible After LoginVisible After Login
Pre-drying TimeVisible After LoginVisible After Login

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