Overview of materials for Poly (P-Xylylene)

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Overview of materials for Poly (P-Xylylene)
Categories:	Polymer; Thermoplastic; Poly (P-Xylylene)
Material Notes:	This property data is a summary of similar materials in the MatWeb database for the category "Poly (P-Xylylene)". 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	Metric	English	Comments

Density	1.10 - 1.42 g/cc	0.0397 - 0.0512 lb/in³	Average value: 1.28 g/cc Grade Count:7
Water Absorption	0.0100 - 0.100 %	0.0100 - 0.100 %	Average value: 0.0633 % Grade Count:6
Moisture Vapor Transmission	0.0551 - 0.591 cc-mm/m²-24hr-atm	0.140 - 1.50 cc-mil/100 in²-24hr-atm	Average value: 0.248 cc-mm/m²-24hr-atm Grade Count:3
Oxygen Transmission	2.80 - 23.5 cc-mm/m²-24hr-atm	7.10 - 59.7 cc-mil/100 in²-24hr-atm	Average value: 11.6 cc-mm/m²-24hr-atm Grade Count:7
Nitrogen Transmission	0.374 - 4.80 cc-mm/m²-24hr-atm	0.950 - 12.2 cc-mil/100 in²-24hr-atm	Average value: 2.17 cc-mm/m²-24hr-atm Grade Count:7
Carbon Dioxide Transmission	3.00 - 95.4 cc-mm/m²-24hr-atm	7.62 - 242 cc-mil/100 in²-24hr-atm	Average value: 40.0 cc-mm/m²-24hr-atm Grade Count:7
Hydrogen Sulfide Transmission	0.571 - 313 cc-mm/m²-24hr-atm	1.45 - 795 cc-mil/100 in²-24hr-atm	Average value: 106 cc-mm/m²-24hr-atm Grade Count:3
Sulfur Dioxide Transmission	0.744 - 4.33 cc-mm/m²-24hr-atm	1.89 - 11.0 cc-mil/100 in²-24hr-atm	Average value: 2.31 cc-mm/m²-24hr-atm Grade Count:3
Chlorine Transmission	0.138 - 29.1 cc-mm/m²-24hr-atm	0.350 - 74.0 cc-mil/100 in²-24hr-atm	Average value: 9.83 cc-mm/m²-24hr-atm Grade Count:3

Mechanical Properties	Metric	English	Comments
Hardness, Rockwell R	80.0 - 122	80.0 - 122	Average value: 91.8 Grade Count:4
Tensile Strength, Ultimate	44.8 - 75.8 MPa	6500 - 11000 psi	Average value: 59.8 MPa Grade Count:6
Tensile Strength, Yield	34.5 - 62.1 MPa	5000 - 9000 psi	Average value: 50.6 MPa Grade Count:7
Elongation at Break	10.0 - 250 %	10.0 - 250 %	Average value: 157 % Grade Count:7
Elongation at Yield	2.00 - 3.00 %	2.00 - 3.00 %	Average value: 2.69 % Grade Count:7
Modulus of Elasticity	2.40 - 3.20 GPa	348 - 464 ksi	Average value: 2.68 GPa Grade Count:7
Coefficient of Friction	0.130 - 0.310	0.130 - 0.310	Average value: 0.261 Grade Count:7
Coefficient of Friction, Static	0.150 - 0.330	0.150 - 0.330	Average value: 0.270 Grade Count:7

Electrical Properties	Metric	English	Comments
Electrical Resistivity	2.00e+16 - 2.00e+17 ohm-cm	2.00e+16 - 2.00e+17 ohm-cm	Average value: 1.04e+17 ohm-cm Grade Count:7
Surface Resistance	1.00e+13 - 5.00e+16 ohm	1.00e+13 - 5.00e+16 ohm	Average value: 9.59e+15 ohm Grade Count:7
Dielectric Constant	2.17 - 3.15	2.17 - 3.15	Average value: 2.76 Grade Count:7
Dielectric Strength	213 - 276 kV/mm	5400 - 7000 kV/in	Average value: 241 kV/mm Grade Count:7
Dissipation Factor	0.000200 - 0.0200	0.000200 - 0.0200	Average value: 0.00606 Grade Count:7

Thermal Properties	Metric	English	Comments
CTE, linear	35.0 - 69.0 µm/m-°C	19.4 - 38.3 µin/in-°F	Average value: 47.0 µm/m-°C Grade Count:6
Specific Heat Capacity	0.712 - 1.04 J/g-°C	0.170 - 0.249 BTU/lb-°F	Average value: 0.863 J/g-°C Grade Count:3
Thermal Conductivity	0.0820 - 0.126 W/m-K	0.569 - 0.874 BTU-in/hr-ft²-°F	Average value: 0.102 W/m-K Grade Count:5
Melting Point	290 - 500 °C	554 - 932 °F	Average value: 381 °C Grade Count:7
Maximum Service Temperature, Air	60.0 - 450 °C	140 - 842 °F	Average value: 161 °C Grade Count:6
Softening Point	125 - 450 °C	257 - 842 °F	Average value: 252 °C Grade Count:4

Optical Properties	Metric	English	Comments
Refractive Index	1.56 - 1.67	1.56 - 1.67	Average value: 1.64 Grade Count:7
Transmission, Visible	80.0 - 90.0 %	80.0 - 90.0 %	Average value: 86.8 % Grade Count:6
UV Transmittance	1.00 - 88.0 %	1.00 - 88.0 %	Average value: 47.8 % Grade Count:4

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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