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Ensinger PEI

Röhm CyRex® 200-8000 Acrylic-Polycarbonate Alloy  (discontinued **)
Categories: Polymer; Thermoplastic; Acrylic (PMMA); Acrylic/Polycarbonate Alloy; Polycarbonate (PC)
Material Notes: CYREX 200-8000 alloy is an opaque, acrylic-polycarbonate alloy with an impact strength that is higher than polycarbonate. Typical properties of CYREX acrylic-polycarbonate alloy are:
  • outstanding impact strength and toughness
  • excellent processing characteristics
  • very good chemical resistance
  • good heat resistance
The special property of CYREX 200-8000 alloy is
  • medium melt flow rate
Application: Used for drug delivery devices, inhalation devices, electronic packaging and any application where anti static protection is required. Used for injection molding and extrusion of both thin and thick wall applications which require excellent toughness.

Information Provided by Evonik CYRO. The former Evonik Methacrylates business has been sold to Röhm (Roehm) GmbH.

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Physical PropertiesMetricEnglishComments
Specific Gravity 1.15 g/cc1.15 g/ccASTM D792
Bulk Density 0.650 g/cc0.0235 lb/in³ASTM D1895
Water Absorption <= 0.26 %<= 0.26 %ASTM D570
Linear Mold Shrinkage 0.0040 - 0.0080 cm/cm0.0040 - 0.0080 in/inASTM D951
Melt Flow 3.9 g/10 min
@Load 3.80 kg,
Temperature 230 °C		3.9 g/10 min
@Load 8.38 lb,
Temperature 446 °F		ASTM D1238
 
Mechanical PropertiesMetricEnglishComments
Hardness, Rockwell M 4646ASTM D785
Tensile Strength at Break 61.0 MPa8850 psiASTM D638
Elongation at Break 58 %58 %ASTM D638
Elongation at Yield 4.7 %4.7 %ASTM D638
Tensile Modulus 2.41 GPa350 ksiASTM D638
Flexural Strength 86.2 MPa12500 psiASTM D790
Flexural Modulus 2.41 GPa350 ksiASTM D790
Izod Impact, Notched 16.0 J/cm
@Diameter 3.17 mm		30.0 ft-lb/in
@Diameter 0.125 in		bar; ASTM D256
 2.14 J/cm
@Diameter 6.35 mm,
Temperature 0.000 °C		4.00 ft-lb/in
@Diameter 0.250 in,
Temperature 32.0 °F		BAR; ASTM D256
 
Thermal PropertiesMetricEnglishComments
CTE, linear 93.6 µm/m-°C
@Temperature 0.000 - 100 °C		52.0 µin/in-°F
@Temperature 32.0 - 212 °F		ASTM D696
Deflection Temperature at 1.8 MPa (264 psi) 101 °C
@Thickness 6.35 mm		214 °F
@Thickness 0.250 in		Annealed; ASTM D648
Vicat Softening Point 136 °C277 °FASTM D1525
 
Optical PropertiesMetricEnglishComments
Transmission, Visible 0.0 %0.0 %Opaque; ASTM D1003
 
Processing PropertiesMetricEnglishComments
Middle Barrel Temperature 199 - 266 °C390 - 510 °FCylinder Temp
Melt Temperature 238 - 266 °C460 - 510 °F
Mold Temperature 65.6 - 98.9 °C150 - 210 °F
Drying Temperature 82.2 °C180 °F
Dry Time 3 - 4 hour3 - 4 hour

**
Materials flagged as discontinued () are no longer part of the manufacturer’s standard product line according to our latest information. These materials may be available by special order, in distribution inventory, or reinstated as an active product. Data sheets from materials that are no longer available remain in MatWeb to assist users in finding replacement materials.

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