Overview of materials for Acrylic, Impact Modified, Molded

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Overview of materials for Acrylic, Impact Modified, Molded
Categories:	Polymer; Thermoplastic; Acrylic (PMMA); Acrylic, Impact Modified, Molded
Material Notes:	This property data is a summary of similar materials in the MatWeb database for the category "Acrylic, Impact Modified, Molded". Each property range of values reported is minimum and maximum values of appropriate MatWeb entries. The comments report the average value, and number of data points used to calculate the average. The values are not necessarily typical of any specific grade, especially less common values and those that can be most affected by additives or processing methods.
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Physical Properties	Original Value	Comments

Density	1.04 - 1.19 g/cc	Average value: 1.16 g/cc Grade Count:148
Water Absorption	0.100 - 3.00 %	Average value: 0.380 % Grade Count:83
Moisture Absorption at Equilibrium	0.300 - 0.400 %	Average value: 0.360 % Grade Count:7
Water Absorption at Saturation	0.300 %	Average value: 0.300 % Grade Count:6
Viscosity	975000 - 975000 cP @Temperature 240 - 240 °C	Average value: 975000 cP Grade Count:1
	975000 - 975000 cP @Shear Rate 100 - 100 1/s	Average value: 975000 cP Grade Count:1
Linear Mold Shrinkage	0.00200 - 0.00900 cm/cm	Average value: 0.00510 cm/cm Grade Count:126
Melt Flow	0.300 - 22.0 g/10 min	Average value: 4.10 g/10 min Grade Count:146
Spiral Flow	22.0 - 46.0 cm	Average value: 29.9 cm Grade Count:14
	130 - 330 cm @Temperature 230 - 250 °C	Average value: 228 cm Grade Count:8
	130 - 330 cm @Thickness 2.00 - 2.00 mm	Average value: 228 cm Grade Count:8

Mechanical Properties	Original Value	Comments
Hardness, Rockwell M	20.0 - 95.0	Average value: 59.7 Grade Count:72
Hardness, Rockwell R	61.0 - 118	Average value: 92.9 Grade Count:17
Tensile Strength, Ultimate	30.0 - 82.0 MPa	Average value: 50.1 MPa Grade Count:128
Tensile Strength, Yield	28.0 - 68.0 MPa	Average value: 44.4 MPa Grade Count:21
Elongation at Break	1.90 - 90.0 %	Average value: 30.7 % Grade Count:144
Elongation at Yield	1.90 - 40.0 %	Average value: 5.74 % Grade Count:39
Modulus of Elasticity	1.30 - 3.52 GPa	Average value: 2.13 GPa Grade Count:115
Flexural Yield Strength	46.0 - 113 MPa	Average value: 72.5 MPa Grade Count:132
Flexural Modulus	1.30 - 3.38 GPa	Average value: 2.12 GPa Grade Count:95
Izod Impact, Notched	0.196 - 2.45 J/cm	Average value: 0.572 J/cm Grade Count:95
	0.240255 - 0.37373 J/cm @Temperature 0.000 - 0.000 °C	Average value: 0.330 J/cm Grade Count:6
	0.260 - 0.590 J/cm @Temperature 0.000 - 0.000 °C	Average value: 0.330 J/cm Grade Count:2
	0.260 - 0.590 J/cm @Thickness 6.35 - 6.35 mm	Average value: 0.330 J/cm Grade Count:2
	0.210 - 0.64068 J/cm @Diameter 6.35 - 6.35 mm	Average value: 0.330 J/cm Grade Count:10
	0.210 - 0.64068 J/cm @Temperature 0.000 - 0.000 °C	Average value: 0.330 J/cm Grade Count:10
Izod Impact, Unnotched	1.60 J/cm - NB	Average value: 3.92 J/cm Grade Count:7
	2.45166 - 2.54973 J/cm @Temperature 0.125 - 0.250 °C	Average value: 2.50 J/cm Grade Count:1
Izod Impact, Notched (ISO)	2.10 - 8.00 kJ/m²	Average value: 4.43 kJ/m² Grade Count:19
Izod Impact, Unnotched (ISO)	1.50 - 9.20 kJ/m²	Average value: 4.31 kJ/m² Grade Count:13
Charpy Impact Unnotched	2.10 - 15.0 J/cm²	Average value: 5.81 J/cm² Grade Count:48
Charpy Impact, Notched	0.120 - 0.850 J/cm²	Average value: 0.431 J/cm² Grade Count:47
Gardner Impact	1.58 - 11.0 J	Average value: 4.74 J Grade Count:48

Electrical Properties	Original Value	Comments
Electrical Resistivity	1.00e+12 - 1.00e+17 ohm-cm	Average value: 4.60e+15 ohm-cm Grade Count:24
Surface Resistance	1.00e+14 - 1.00e+16 ohm	Average value: 5.38e+15 ohm Grade Count:15
Dielectric Constant	2.50 - 3.90	Average value: 3.40 Grade Count:24
Dielectric Strength	15.0 - 60.0 kV/mm	Average value: 26.1 kV/mm Grade Count:24
Dissipation Factor	0.0100 - 0.0500	Average value: 0.0408 Grade Count:24
Comparative Tracking Index	600 V	Average value: 600 V Grade Count:7

Thermal Properties	Original Value	Comments
CTE, linear	38.0 - 123 µm/m-°C	Average value: 89.3 µm/m-°C Grade Count:94
	72.0 - 93.6 µm/m-°C @Temperature 0.000 - 156 °C	Average value: 78.6 µm/m-°C Grade Count:6
Specific Heat Capacity	1.30 - 1.50 J/g-°C	Average value: 1.48 J/g-°C Grade Count:9
	1.90 - 2.30 J/g-°C @Temperature 100 - 175 °C	Average value: 2.10 J/g-°C Grade Count:1
Thermal Conductivity	0.200 - 0.220 W/m-K	Average value: 0.203 W/m-K Grade Count:12
Maximum Service Temperature, Air	50.0 - 99.0 °C	Average value: 81.9 °C Grade Count:27
Deflection Temperature at 0.46 MPa (66 psi)	78.0 - 187 °C	Average value: 94.8 °C Grade Count:16
Deflection Temperature at 1.8 MPa (264 psi)	73.0 - 190 °C	Average value: 85.7 °C Grade Count:124
Vicat Softening Point	78.0 - 115 °C	Average value: 101 °C Grade Count:142
Heat Distortion Temperature	80.0 - 97.0 °C	Average value: 90.3 °C Grade Count:8
Flammability, UL94	HB	Grade Count:65
Oxygen Index	18.0 - 19.0 %	Average value: 18.2 % Grade Count:6
Glow Wire Test	650 - 675 °C	Average value: 651 °C Grade Count:20

Optical Properties	Original Value	Comments
Refractive Index	1.49 - 1.57	Average value: 1.50 Grade Count:72
Haze	0.400 - 97.0 %	Average value: 4.72 % Grade Count:100
Yellow Index	-1.50 - 5.50 %	Average value: 0.879 % Grade Count:19
Transmission, Visible	0.000 - 92.0 %	Average value: 86.7 % Grade Count:122
UV Transmittance	91.0 - 92.0 %	Average value: 91.8 % Grade Count:13

Processing Properties	Original Value	Comments
Processing Temperature	210 - 250 °C	Average value: 230 °C Grade Count:8
Melt Temperature	179 - 260 °C	Average value: 229 °C Grade Count:43
Mold Temperature	26.7 - 107 °C	Average value: 60.8 °C Grade Count:41
Drying Temperature	60.0 - 105 °C	Average value: 80.8 °C Grade Count:35
Injection Pressure	49.0 - 108 MPa	Average value: 79.4 MPa Grade Count:9
Annealing Temperature	60.0 - 70.0 °C	Average value: 65.0 °C Grade Count:8

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 go back to viewing the property data in MatWeb's normal format.

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