Trinseo Plexiglas® MI7 Acrylic

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Trinseo Plexiglas® MI7 Acrylic
Categories:	Polymer; Thermoplastic; Acrylic (PMMA); Acrylic, Impact Modified, Molded
Material Notes:	Plexiglas® MI7 is an impact modified thermoplastic acrylic resin formulated for injection molding and extrusion applications. It is heat resistant, has high melt flow and provides 7 times the impact resistance of standard acrylics while maintaining excellent optical properties. It offers an excellent balance between melt flow and increased resistance to breakage, while providing weatherability superior to that provided by other high-impact plastics. Supplemental moldflow simulation data is available. Appearance: Clear/Transparent; Colors Available; Opaque; Translucent Characteristics: High Heat Resistance; High Clarity; Scratch Resistant; Good Color Stability; Good Dimensional Stability; Low Shrinkage; Good Thermal Stability; Good UV Resistance; Good Weather Resistance; Good Toughness; Medium Impact Resistance; Good Flow Applications: Automotive Exterior Parts; Lighting Diffusers Arkema has sold the American Plexiglas® product line to Trinseo, finalized in 2021.
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Physical Properties	Metric	English	Comments

Specific Gravity	1.17 g/cc	1.17 g/cc	ASTM D792
Water Absorption	0.30 %	0.30 %	24 hr. immersion; ASTM D570
Linear Mold Shrinkage	0.0030 - 0.0060 cm/cm	0.0030 - 0.0060 in/in	ASTM D955
Melt Flow	3.2 g/10 min @Load 3.80 kg, Temperature 230 °C	3.2 g/10 min @Load 8.38 lb, Temperature 446 °F	ASTM D1238

Mechanical Properties	Metric	English	Comments
Hardness, Rockwell M	68	68	ASTM D785
Tensile Strength, Ultimate	48.3 MPa	7000 psi	ASTM D638
Elongation at Break	35 %	35 %	ASTM D638
Tensile Modulus	2.52 GPa	365 ksi	ASTM D638
Flexural Strength	<= 77.2 MPa	<= 11200 psi	ASTM D790
Flexural Modulus	2.38 GPa	345 ksi	ASTM D790
Izod Impact, Notched	0.320 J/cm	0.600 ft-lb/in	ASTM D256

Thermal Properties	Metric	English	Comments
Thermal Conductivity	0.202 W/m-K	1.40 BTU-in/hr-ft²-°F	ASTM C177
Deflection Temperature at 0.46 MPa (66 psi)	91.1 °C	196 °F	annealed; ASTM D648
Deflection Temperature at 1.8 MPa (264 psi)	85.0 °C	185 °F	annealed; ASTM D648
Vicat Softening Point	90.0 °C	194 °F	50°C/hr; 50N; ASTM D1525
	98.9 °C	210 °F	50°C/hr; 10N; ASTM D1525
Flammability, UL94	HB	HB

Optical Properties	Metric	English	Comments
Refractive Index	1.49 @Temperature 22.8 °C	1.49 @Temperature 73.0 °F	N_D; ASTM D542
Haze	<= 2.0 % @Thickness 3.17 mm	<= 2.0 % @Thickness 0.125 in	ASTM D1003
Transmission, Visible	91 % @Thickness 3.17 mm	91 % @Thickness 0.125 in	ASTM D1003

Some of the values displayed above may have been converted from their original units and/or rounded in order to display the information in a consistent format. Users requiring more precise data for scientific or engineering calculations can click on the property value to see the original value as well as raw conversions to equivalent units. We advise that you only use the original value or one of its raw conversions in your calculations to minimize rounding error. We also ask that you refer to MatWeb's terms of use regarding this information. Click here to view all the property values for this datasheet as they were originally entered into MatWeb.

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