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Elmet Technologies

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.

Vendors: No vendors are listed for this material. Please click here if you are a supplier and would like information on how to add your listing to this material.
 
Physical PropertiesMetricEnglishComments
Specific Gravity 1.11 g/cc1.11 g/ccASTM D792
Bulk Density 0.650 g/cc0.0235 lb/in³ASTM D1895
Water Absorption <= 0.30 %<= 0.30 %ASTM D570
Linear Mold Shrinkage 0.0040 - 0.0070 cm/cm0.0040 - 0.0070 in/inASTM 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 PropertiesMetricEnglishComments
Hardness, Rockwell M 5656ASTM D785
Tensile Strength at Break 55.2 MPa8000 psiASTM D638
Elongation at Break 15 %15 %ASTM D638
Elongation at Yield 3.6 %3.6 %ASTM D638
Tensile Modulus 2.96 GPa430 ksiASTM D638
Flexural Strength 89.6 MPa13000 psiASTM D790
Flexural Modulus 2.76 GPa400 ksiASTM 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 PropertiesMetricEnglishComments
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 °C214 °FASTM D1525
 
Optical PropertiesMetricEnglishComments
Haze 2.5 %2.5 %ASTM D1003
Yellow Index -1.00 %-1.00 %ASTM E313
Transmission, Visible 86 %86 %ASTM D1003
 
Processing PropertiesMetricEnglishComments
Middle Barrel Temperature 204 - 246 °C400 - 475 °FCylinder Temp
Melt Temperature 204 - 246 °C400 - 475 °F
Mold Temperature 48.9 - 76.7 °C120 - 170 °F
Drying Temperature 82.2 °C180 °F
Dry Time 3 - 4 hour3 - 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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