Röhm ACRYLITE® H12 Acrylic Polymer

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Röhm ACRYLITE® H12 Acrylic Polymer
Categories:	Polymer; Thermoplastic; Acrylic (PMMA); Acrylic, Extruded; Acrylic, General Purpose, Molded
Material Notes:	ACRYLITE® H12 acrylic polymer is an amorphous thermoplastic molding and extrusion compound based on polymethyl methacrylate (PMMA). Typical properties of ACRYLITE® acrylic polymers are excellent weather resistance, high light transmission, high mechanical strength, high surface hardness and mar resistance, good melt flow rate, and versatile colorability due to crystal clarity. The special properties of ACRYLITE H12 polymer are medium heat resistance, medium melt flow rate, UV light transmitting, low levels of lubricant. Application: Used for injection molding and extrusion of optical and technical parts. Information Provided by Evonik CYRO. The former Evonik Methacrylates business has been sold to Röhm (Roehm) GmbH.
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Physical Properties	Metric	English	Comments

Specific Gravity	1.19 g/cc	1.19 g/cc	ASTM D792
Bulk Density	0.660 g/cc	0.0238 lb/in³	ASTM D1895
Water Absorption at Saturation	0.30 %	0.30 %	ASTM D570
Linear Mold Shrinkage	0.0040 - 0.0060 cm/cm	0.0040 - 0.0060 in/in	ASTM D955
Melt Flow	7.0 g/10 min @Load 3.80 kg, Temperature 230 °C	7.0 g/10 min @Load 8.38 lb, Temperature 446 °F	ASTM D1238

Mechanical Properties	Metric	English	Comments
Hardness, Rockwell M	94	94	ASTM D785
Tensile Strength at Break	65.5 MPa	9500 psi	ASTM D638
Elongation at Break	4.0 - 6.0 %	4.0 - 6.0 %	ASTM D638
Elongation at Yield	4.0 - 6.0 %	4.0 - 6.0 %	ASTM D638
Tensile Modulus	3.24 GPa	470 ksi	ASTM D638
Flexural Strength	117 MPa	17000 psi	ASTM D790
Flexural Modulus	3.38 GPa	490 ksi	ASTM D790
Izod Impact, Notched	0.192 J/cm @Temperature 23.0 °C	0.360 ft-lb/in @Temperature 73.4 °F	1/4" bar; ASTM D256

Thermal Properties	Metric	English	Comments
CTE, linear	72.0 µm/m-°C @Temperature 0.000 - 156 °C	40.0 µin/in-°F @Temperature 32.0 - 312 °F	ASTM D696
Deflection Temperature at 1.8 MPa (264 psi)	93.9 °C @Thickness 6.35 mm	201 °F @Thickness 0.250 in	Annealed; ASTM D648
Vicat Softening Point	105 °C	221 °F	ASTM D1525

Optical Properties	Metric	English	Comments
Haze	<= 1.0 %	<= 1.0 %	ASTM D1003
Yellow Index	<= 1.0 %	<= 1.0 %	ASTM D1925
Transmission, Visible	92 %	92 %	ASTM D1003

Processing Properties	Metric	English	Comments
Middle Barrel Temperature	221 - 249 °C	430 - 480 °F
Melt Temperature	221 - 249 °C	430 - 480 °F
Mold Temperature	32.2 - 79.4 °C	90.0 - 175 °F
Drying Temperature	76.7 °C	170 °F
Dry Time	3 - 4 hour	3 - 4 hour

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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PCYR00051 / 101040

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