Röhm ACRYLITE® 8N Acrylic polymer

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Röhm ACRYLITE® 8N Acrylic polymer
Categories:	Polymer; Thermoplastic; Acrylic (PMMA); Acrylic, Extruded
Material Notes:	ACRYLITE® 8N 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 versatile colorability due to crystal clarity The special properties of ACRYLITE® 8N polymer are: highest heat resistance high melt strength UV light absorption options low levels of lubricant AMECA listed Application: Used for injection molding commercial and residential lighting lenses, automotive lenses and parts, optical devices and extruded profiles. Information provided by Roehm America LLC
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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	<= 0.30 %	<= 0.30 %	ASTM D570
Linear Mold Shrinkage	0.0040 - 0.0070 cm/cm	0.0040 - 0.0070 in/in	ASTM D955
Melt Flow	3.3 g/10 min @Load 3.80 kg, Temperature 230 °C	3.3 g/10 min @Load 8.38 lb, Temperature 446 °F	ASTM D1238

Mechanical Properties	Metric	English	Comments
Hardness, Rockwell M	95	95	ASTM D785
Tensile Strength	77.9 MPa	11300 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	3.20 GPa	464 ksi	ASTM D638
Flexural Strength	111.7 MPa	16200 psi	ASTM D790
Flexural Modulus	3.50 GPa	508 ksi	ASTM D790
Izod Impact, Notched	0.190 J/cm @Thickness 6.35 mm	0.356 ft-lb/in @Thickness 0.250 in	ASTM D256

Thermal Properties	Metric	English	Comments
CTE, linear	72.0 µm/m-°C @Temperature 0.000 - 100 °C	40.0 µin/in-°F @Temperature 32.0 - 212 °F	ASTM D696
Deflection Temperature at 1.8 MPa (264 psi)	100 °C @Thickness 6.35 mm	212 °F @Thickness 0.250 in	Annealed; ASTM D648
Vicat Softening Point	108 °C @Load 5.10 kg	226 °F @Load 11.2 lb	50°C/h; 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

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PROHM9325 / 319942

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