Röhm CYROLITE® MD H12 Acrylic polymer

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Röhm CYROLITE® MD H12 Acrylic polymer
Categories:	Polymer; Thermoplastic; Acrylic (PMMA); Acrylic, Extruded
Material Notes:	CYROLITE® MD H12 acrylic polymer is an amorphous thermoplastic molding compound based on polymethyl methacrylate (PMMA) for the medical diagnostic industry. Typical properties of CYROLITE® MD acrylic polymers are: Exceptional ultra-violet light transmittance Superior optical clarity Maximum flow characteristics Excellent dimensional stability Outstanding scratch resistance Total cost-of-use advantage over glass The special properties of CYROLITE® MD H12 are: Higher Vicat softening point Medium melt flow rate Application: Used for injection molding of 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	0.0040 - 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	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	3.20 GPa	464 ksi	ASTM D638
Flexural Strength	117.2 MPa	17000 psi	ASTM D790
Flexural Modulus	3.40 GPa	493 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)	95.0 °C @Thickness 6.35 mm	203 °F @Thickness 0.250 in	Annealed; ASTM D648
Vicat Softening Point	105 °C @Load 5.10 kg	221 °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 D1003
Transmission, Visible	92 %	92 %	ASTM D1003
UV Transmittance	<= 87.7 % @Wavelength 340 nm	<= 87.7 % @Wavelength 340 nm	ASTM D1003

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PROHM9348 / 319965

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