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Ensinger PEI

Röhm CYROLITE G20-100 Acrylic-Based Multipolymer Compound  (discontinued **)
Categories: Polymer; Thermoplastic; Acrylic (PMMA); Acrylic, Gamma Radiation Resistant, Molded

Material Notes: Uses: medical devices, molded applications; excellent gamma resistance

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 2.6 g/10 min
@Load 5.00 kg,
Temperature 230 °C
2.6 g/10 min
@Load 11.0 lb,
Temperature 446 °F
ASTM D1238
 
Mechanical PropertiesMetricEnglishComments
Hardness, Rockwell M 3939ASTM D785
Tensile Strength at Break 46.9 MPa6800 psiASTM D638
Elongation at Break 9.5 %9.5 %ASTM D638
Elongation at Yield 4.0 %4.0 %ASTM D638
Tensile Modulus 2.21 GPa320 ksiASTM D638
Flexural Strength 72.4 MPa10500 psiASTM D790
Flexural Modulus 2.31 GPa335 ksiASTM D790
Izod Impact, Notched 1.01 J/cm
@Diameter 6.35 mm
1.90 ft-lb/in
@Diameter 0.250 in
BAR; ASTM D256
 0.587 J/cm
@Diameter 6.35 mm,
Temperature 0.000 °C
1.10 ft-lb/in
@Diameter 0.250 in,
Temperature 32.0 °F
BAR; ASTM D256
 
Thermal PropertiesMetricEnglishComments
CTE, linear 92.5 µm/m-°C
@Temperature 0.000 - 100 °C
51.4 µin/in-°F
@Temperature 32.0 - 212 °F
ASTM D696
Deflection Temperature at 1.8 MPa (264 psi) 85.6 °C
@Thickness 6.35 mm
186 °F
@Thickness 0.250 in
Annealed; ASTM D648
Vicat Softening Point 101 °C214 °FASTM D1525
 
Optical PropertiesMetricEnglishComments
Refractive Index 1.511.51ASTM D542
Haze 5.0 %5.0 %ASTM D1003
Yellow Index -0.300 %-0.300 %ASTM E313
Transmission, Visible 89 %89 %ASTM D1003
 
Processing PropertiesMetricEnglishComments
Middle Barrel Temperature 193 - 246 °C380 - 475 °FCylinder Temp
Melt Temperature 204 - 246 °C400 - 475 °F
Mold Temperature 48.9 - 82.2 °C120 - 180 °F
Drying Temperature 79.4 °C175 °F
Dry Time 3 - 4 hour3 - 4 hour

**
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