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Chi Mei Acryrex® CM-205 PMMA

Category Polymer , Thermoplastic , Acrylic (PMMA) , Acrylic, General Purpose, Molded
Manufacturer Chi Mei Corporation (ChiMei)
Trade Name Acryrex®
Port Ningbo port,China
Trade Terms FOB, CFR, CIF
Payment Terms L/C, T/T, Western Union
Download PDF Chi Mei Acryrex® CM-205 PMMA.pdf
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Material Notes:
High heat injection grade. It can resist high temperature. High mechanical strength.Applications: The indicator cover of scooter and automobile/sun glasses/digital watch cover.Features:Good Weather ResistanceHigh Heat ResistanceHigh StrengthUses:Automotive ApplicationsProtective CoveringsRoHS CompliantAppearance: Clear/TransparentForms: PelletsProcessing Method: Injection MoldingAvailability:Africa & Middle EastAsia PacificEuropeLatin AmericaNorth AmericaSouth America
Physical Properties Metric English Comments
Density 0.700 g/cc
0.0253 lb/in³
Apparent; ASTM D1182
1.19 g/cc
0.0430 lb/in³
ISO 1183
Water Absorption 0.30 %
0.30 %
Equilibrium; ASTM D570
Linear Mold Shrinkage, Flow 0.0020 - 0.0060 cm/cm
0.0020 - 0.0060 in/in
ASTM D955
Melt Flow 1.8 g/10 min

@Load 3.80 kg,
Temperature 230 °C
1.8 g/10 min

@Load 8.38 lb,
Temperature 446 °F
ASTM D1238
Mechanical Properties Metric English Comments
Hardness, Shore M 95

@Thickness 6.35 mm
95

@Thickness 0.250 in
ASTM D785
Tensile Strength, Yield 70.3 MPa

@Thickness 3.18 mm
10200 psi

@Thickness 0.125 in
6 mm/min; ASTM D638
Elongation at Break 5.0 %

@Thickness 3.18 mm
5.0 %

@Thickness 0.125 in
6 mm/min; ASTM D638
Flexural Strength 108 MPa

@Thickness 6.35 mm
15700 psi

@Thickness 0.250 in
2.8 mm/min; ASTM D790
Izod Impact, Notched 0.200 J/cm

@Thickness 6.35 mm
0.375 ft-lb/in

@Thickness 0.250 in
ASTM D256
Thermal Properties Metric English Comments
Deflection Temperature at 1.8 MPa (264 psi) 100 °C

@Thickness 6.35 mm
212 °F

@Thickness 0.250 in
Unannealed; ASTM D648
Vicat Softening Point 113 °C
235 °F
50°C/hr; ASTM D1525
Flammability, UL94 HB

@Thickness 1.59 mm
HB

@Thickness 0.0625 in
UL 94
Optical Properties Metric English Comments
Refractive Index 1.49
1.49
ASTM D542
Transmission, Visible 92 %

@Thickness 3.18 mm
92 %

@Thickness 0.125 in
ASTM D1003
Electrical Properties Metric English Comments
Volume Resistivity 1.00e+15 ohm-cm
1.00e+15 ohm-cm
ASTM D257
Dielectric Constant 3.7
3.7
ASTM D150
Dielectric Strength 0.787 kV/mm
20.0 kV/in
ASTM D149
Dissipation Factor 0.19
0.19
ASTM D150
Processing Properties Metric English Comments
Rear Barrel Temperature 185 - 205 °C
365 - 401 °F
Middle Barrel Temperature 200 - 220 °C
392 - 428 °F
Front Barrel Temperature 220 - 240 °C
428 - 464 °F
Mold Temperature 50.0 - 70.0 °C
122 - 158 °F
Drying Temperature 85.0 - 90.0 °C

@Time 14400 sec
185 - 194 °F

@Time 4.00 hour
Descriptive Properties Value Comments
Power Factor 0.5
ASTM D150
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