Röhm XT® Polymer 250 Clear/ Blue Tint Acrylic-Based Multipolymer Compound

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Röhm XT® Polymer 250 Clear/ Blue Tint Acrylic-Based Multipolymer Compound
Categories:	Polymer; Thermoplastic; Acrylic (PMMA); Acrylic, General Purpose, Molded
Material Notes:	XT polymer 250 compound is an impact-modified acrylic-based multipolymer for molding, extrusion and blow molding applications. Typical properties of XT polymer 250 compound are: outstanding thermoformability superior heat distortion temperatures excellent bonding and welding capabilities good impact strength good light transmission resistant to EtO, gamma and E-beam sterilization resistant to PVC plasticizers The special property of XT polymer 250 compound is high strength properties good chemical resistance Application: Used for medical devices, food packaging, pharmaceutical packaging, rigid medical device packaging and appliance 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	1.11 g/cc	1.11 g/cc	ASTM D792
Bulk Density	0.650 g/cc	0.0235 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 D951
Melt Flow	4.2 g/10 min @Load 5.00 kg, Temperature 230 °C	4.2 g/10 min @Load 11.0 lb, Temperature 446 °F	ASTM D1238

Mechanical Properties	Metric	English	Comments
Hardness, Rockwell M	56	56	ASTM D785
Tensile Strength at Break	55.2 MPa	8000 psi	ASTM D638
Elongation at Break	15 %	15 %	ASTM D638
Elongation at Yield	3.6 %	3.6 %	ASTM D638
Tensile Modulus	2.96 GPa	430 ksi	ASTM D638
Flexural Strength	89.6 MPa	13000 psi	ASTM D790
Flexural Modulus	2.76 GPa	400 ksi	ASTM D790
Izod Impact, Notched	0.641 J/cm @Diameter 6.35 mm	1.20 ft-lb/in @Diameter 0.250 in	BAR; ASTM D256
	0.481 J/cm @Diameter 6.35 mm, Temperature 0.000 °C	0.900 ft-lb/in @Diameter 0.250 in, Temperature 32.0 °F	BAR; 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)	87.2 °C @Thickness 6.35 mm	189 °F @Thickness 0.250 in	Annealed; ASTM D648
Vicat Softening Point	101 °C	214 °F	ASTM D1525

Optical Properties	Metric	English	Comments
Haze	2.5 %	2.5 %	ASTM D1003
Yellow Index	-1.00 %	-1.00 %	ASTM E313
Transmission, Visible	86 %	86 %	ASTM D1003

Processing Properties	Metric	English	Comments
Middle Barrel Temperature	204 - 246 °C	400 - 475 °F	Cylinder Temp
Melt Temperature	204 - 246 °C	400 - 475 °F
Mold Temperature	48.9 - 76.7 °C	120 - 170 °F
Drying Temperature	82.2 °C	180 °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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PCYR00038 / 89042

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