Röhm ACRYLITE® L40 Acrylic polymer

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Röhm ACRYLITE® L40 Acrylic polymer
Categories:	Polymer; Thermoplastic; Acrylic (PMMA); Acrylic, Extruded
Material Notes:	ACRYLITE® L40 acrylic polymer is an amorphous thermoplastic molding 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® L40 polymer are: low heat resistance highest melt flow rate UV light transmitting medium levels of lubricant Application: Used for injection molding thin-wall medical devices requiring UV spectroscopy for fluid evaluation. 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	0.0030 - 0.0060 cm/cm	0.0030 - 0.0060 in/in	ASTM D955
Melt Flow	26 g/10 min @Load 3.80 kg, Temperature 230 °C	26 g/10 min @Load 8.38 lb, Temperature 446 °F	ASTM D1238

Mechanical Properties	Metric	English	Comments
Hardness, Rockwell M	84	84	ASTM D785
Tensile Strength	60.7 MPa	8800 psi	ASTM D638
Elongation at Break	2.0 - 4.0 %	2.0 - 4.0 %	ASTM D638
Elongation at Yield	2.0 - 4.0 %	2.0 - 4.0 %	ASTM D638
Tensile Modulus	3.20 GPa	464 ksi	ASTM D638
Flexural Strength	97.9 MPa	14200 psi	ASTM D790
Flexural Modulus	3.00 GPa	435 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)	74.0 °C @Thickness 6.35 mm	165 °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 E313
Transmission, Visible	92 %	92 %	ASTM D1003

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PROHM9327 / 319944

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