Polycasa Acryl® G 55 Acrylic, Injection Molding Grade

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Polycasa Acryl® G 55 Acrylic, Injection Molding Grade
Categories:	Polymer; Thermoplastic; Acrylic (PMMA); Acrylic, General Purpose, Molded
Material Notes:	Injection molding grade for very long flow paths, as well as thin-walled parts. Data was collected by ISO methods. Quinn Manufacturing Group rebranded its Plastics Division as Polycasa in 2013.
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Physical Properties	Metric	English	Comments

Density	1.18 g/cc	0.0426 lb/in³
Moisture Absorption at Equilibrium	0.30 %	0.30 %
Linear Mold Shrinkage, Flow	0.0040 cm/cm	0.0040 in/in
Melt Flow	21 g/10 min @Load 3.80 kg, Temperature 230 °C	21 g/10 min @Load 8.38 lb, Temperature 446 °F

Mechanical Properties	Metric	English	Comments
Tensile Strength, Ultimate	62.0 MPa	8990 psi
Elongation at Break	3.0 %	3.0 %
Tensile Modulus	3.10 GPa	450 ksi
Charpy Impact Unnotched	2.00 J/cm²	9.52 ft-lb/in²
Charpy Impact, Notched	0.200 J/cm²	0.952 ft-lb/in²

Electrical Properties	Metric	English	Comments
Electrical Resistivity	1.00e+15 ohm-cm	1.00e+15 ohm-cm
Surface Resistance	1.00e+14 ohm	1.00e+14 ohm
Dielectric Constant	2.9 @Frequency 1e+6 Hz	2.9 @Frequency 1e+6 Hz
	3.2 @Frequency 100 Hz	3.2 @Frequency 100 Hz
Dielectric Strength	60.0 kV/mm	1520 kV/in
Dissipation Factor	0.030 @Frequency 1e+6 Hz	0.030 @Frequency 1e+6 Hz
	0.040 @Frequency 100 Hz	0.040 @Frequency 100 Hz
Comparative Tracking Index	600 V	600 V

Thermal Properties	Metric	English	Comments
CTE, linear, Parallel to Flow	70.0 µm/m-°C @Temperature 20.0 °C	38.9 µin/in-°F @Temperature 68.0 °F
Deflection Temperature at 0.46 MPa (66 psi)	80.0 °C	176 °F
Deflection Temperature at 1.8 MPa (264 psi)	75.0 °C	167 °F
Vicat Softening Point	85.0 °C	185 °F
Oxygen Index	18 %	18 %

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 view all the property values for this datasheet as they were originally entered into MatWeb.

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