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Spartech Polycast Cell Cast Acrylic
Categories: Polymer; Thermoplastic; Acrylic
Material Notes: Description: Cell Cast Acrylic

Information provided by Spartech.
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Physical PropertiesMetricEnglishComments
Specific Gravity 1.19 g/cc1.19 g/ccASTM D792
Water Absorption 0.200 %0.200 %24 hr immersion
Water Absorption at Saturation 0.650 %0.650 %26 day immersion
 
Mechanical PropertiesMetricEnglishComments
Hardness, Barcol 5050ASTM D2583
Hardness, Rockwell M 9898ASTM D785
Tensile Strength, Yield 77.57 MPa11250 psiASTM D638
Elongation at Break 6.40 %6.40 %ASTM D638
Tensile Modulus 3.10 GPa450 ksiASTM D638
Flexural Modulus 3.28 GPa475 ksiASTM D790
Flexural Strength 105.1 MPa15250 psiASTM D790
Compressive Yield Strength 124 MPa18000 psiASTM D695
Compressive Modulus 3.03 GPa440 ksiASTM D695
Shear Strength 62.1 MPa9000 psiASTM D732
Impact 18.018.0inches, Falling 0.5 lb Steel Ball Breakage Height; ASTM D256
Taber Abrasion, mg/1000 Cycles 14.014.0500 g each wheel, 100 rev ANSI Z26.1; ASTM D1044
Compression Set 0.750 %
@Temperature 50.0 °C		0.750 %
@Temperature 122 °F		4000 psi, 24 hr (Compression Deformation); ASTM D621
Izod Impact, Notched 0.200 J/cm0.375 ft-lb/inASTM D882
 
Thermal PropertiesMetricEnglishComments
CTE, linear 75.6 µm/m-°C
@Temperature 20.0 °C		42.0 µin/in-°F
@Temperature 68.0 °F		ASTM D696
Specific Heat Capacity 1.46 J/g-°C
@Temperature 25.0 °C		0.350 BTU/lb-°F
@Temperature 77.0 °F		Dupont 900 (Therm. An. Cal.)
Thermal Conductivity 0.187 W/m-K1.30 BTU-in/hr-ft²-°FCento-Fitch
Maximum Service Temperature, Air 82.2 °C180 °F
Deflection Temperature at 0.46 MPa (66 psi) 110 °C230 °FASTM D648
Deflection Temperature at 1.8 MPa (264 psi) 95.0 °C203 °FASTM D648
Flammability Test 1.201.20in/min, Burning Rate UL 94 HB; ASTM D635
Flash Point 443 °C830 °FSelf Ignition Temperature; ASTM D1929
Shrinkage 2.20 %2.20 %Residual Shrinkage (Internal Strain) Polycast; ASTM D4802
 
Optical PropertiesMetricEnglishComments
Refractive Index 1.491.49ASTM D542
Haze <= 0.500 %<= 0.500 %As Cast; ASTM D1003
 <= 0.500 %<= 0.500 %After 1000 hrs. Accelerated Weathering (No effect on Crazing, Discoloration, or Warping); ASTM D1449
Yellow Index 0.500 %0.500 %As Cast; ASTM D1925
Transmission, Visible 92.0 %92.0 %As Cast; ASTM D1003
 92.0 %92.0 %After 1000 hrs. Accelerated Weathering; ASTM D1449
UV Transmittance 0.000 %0.000 %320 nm
 
Processing PropertiesMetricEnglishComments
Processing Temperature 160 °C320 °FHot Forming Temperature
 
Descriptive Properties
Craze Resistance to IPA (Dry)2000 psiMil-P-8184
Craze Resistance to IPA (Wet)500 psiMil-P-8184
Craze Resistance to Lacquer Thinner (Dry)1000 psiMil-P-8184
Craze Resistance to Lacquer Thinner (Wet)0 psiMil-P-8184
Craze Resistance to Sulfuric Acid (Dry)0 psiMil-P-8184
Craze Resistance to Sulfuric Acid (Wet)0 psiMil-P-8184
Mar Resistance29ASTM D637
Smoke Density27%ASTM D2843

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PSPAR029 / 68470




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