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	Original Value	Comments

Specific Gravity	1.11 g/cc	ASTM D792
Bulk Density	0.650 g/cc	ASTM D1895
Water Absorption	<= 0.30 %	ASTM D570
Linear Mold Shrinkage	0.0040 - 0.0070 cm/cm	ASTM D951
Melt Flow	4.2 g/10 min @Load 5.00 kg, Temperature 230 °C	ASTM D1238

Mechanical Properties	Original Value	Comments
Hardness, Rockwell M	56	ASTM D785
Tensile Strength at Break	8000 psi	ASTM D638
Elongation at Break	15 %	ASTM D638
Elongation at Yield	3.6 %	ASTM D638
Tensile Modulus	430 ksi	ASTM D638
Flexural Strength	13000 psi	ASTM D790
Flexural Modulus	400 ksi	ASTM D790
Izod Impact, Notched	1.20 ft-lb/in @Diameter 6.35 mm	BAR; ASTM D256
	0.900 ft-lb/in @Diameter 6.35 mm, Temperature 0.000 °C	BAR; ASTM D256

Thermal Properties	Original Value	Comments
CTE, linear	40.0 µin/in-°F @Temperature 0.000 - 100 °C	ASTM D696
Deflection Temperature at 1.8 MPa (264 psi)	189 °F @Thickness 6.35 mm	Annealed; ASTM D648
Vicat Softening Point	214 °F	ASTM D1525

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

Processing Properties	Original Value	Comments
Middle Barrel Temperature	400 - 475 °F	Cylinder Temp
Melt Temperature	400 - 475 °F
Mold Temperature	120 - 170 °F
Drying Temperature	180 °F
Dry Time	3 - 4 hour

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PCYR00038 / 89042

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