Specialty Coating Systems Parylene N Poly (P-Xylylene) Coating

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USP Class VI Approved Adhesives for Medical Device Applications
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Specialty Coating Systems Parylene N Poly (P-Xylylene) Coating
Categories:	Polymer; Film; Thermoplastic; Poly (P-Xylylene)
Material Notes:	Parylene N, poly(para-xylylene), is a completely linear, highly crystalline material. Parylene N is a primary dielectric, exhibiting a very low dissipation factor, high dielectric strength, and a low dielectric constant invariant with frequency. The crevice-penetrating ability of Parylene N is second only to that of Parylene HT®. SCS Parylene conformal coatings are ultra-thin, pinhole-free polymer coatings that provide a number of high-value surface treatment properties such as excellent moisture, chemical and dielectric barrier properties, thermal and UV stability, and dry-film lubricity. Parylene coatings are used in a number of applications throughout the medical device, electronics, automotive, military and aerospace industries. Information provided by Specialty Coating Systems (SCS) .
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Physical Properties	Metric	English	Comments

Water Vapor Permeability	0.590 g mil/ (m² day) @Temperature 37.0 °C	0.0381 g mil/ (100 in² day) @Temperature 98.6 °F	90% RH; ASTM E96
Density	1.10 - 1.12 g/cc	0.0397 - 0.0405 lb/in³	ASTM D1505
Water Absorption	<= 0.10 % @Time 86400 sec	<= 0.10 % @Time 24.0 hour	ASTM D570
Oxygen Transmission	15.4 cc-mm/m²-24hr-atm @Temperature 25.0 °C	39.1 cc-mil/100 in²-24hr-atm @Temperature 77.0 °F	ASTM D1434
Nitrogen Transmission	3.00 cc-mm/m²-24hr-atm @Temperature 25.0 °C	7.62 cc-mil/100 in²-24hr-atm @Temperature 77.0 °F	ASTM D1434
Carbon Dioxide Transmission	84.3 cc-mm/m²-24hr-atm @Temperature 25.0 °C	214 cc-mil/100 in²-24hr-atm @Temperature 77.0 °F	ASTM D1434

Mechanical Properties	Metric	English	Comments
Hardness, Rockwell R	85	85	ASTM D785
Tensile Strength	48.3 MPa	7000 psi
Tensile Strength, Yield	42.1 MPa	6100 psi	ASTM D882
Elongation at Break	<= 250 %	<= 250 %	ASTM D882
Elongation at Yield	2.5 %	2.5 %	ASTM D882
Modulus of Elasticity	2.41 GPa	350 ksi	Secant; ASTM D882
Coefficient of Friction, Dynamic	0.25	0.25	ASTM D1894
Coefficient of Friction, Static	0.25	0.25	ASTM D1894

Electrical Properties	Metric	English	Comments
Volume Resistivity	1.40e+17 ohm-cm	1.40e+17 ohm-cm	50% RH; ASTM D257
Surface Resistance	1.00e+13 ohm	1.00e+13 ohm	50% RH; ASTM D257
Dielectric Constant	2.65 @Frequency 60 Hz	2.65 @Frequency 60 Hz	ASTM D150
	2.65 @Frequency 1000 Hz	2.65 @Frequency 1000 Hz	ASTM D150
	2.65 @Frequency 1e+6 Hz	2.65 @Frequency 1e+6 Hz	ASTM D150
Dielectric Strength	276 kV/mm	7000 kV/in	ASTM D149
Dissipation Factor	0.00020 @Frequency 60 Hz	0.00020 @Frequency 60 Hz	ASTM D150
	0.00020 @Frequency 1000 Hz	0.00020 @Frequency 1000 Hz	ASTM D150
	0.00060 @Frequency 1e+6 Hz	0.00060 @Frequency 1e+6 Hz	ASTM D150

Thermal Properties	Metric	English	Comments
CTE, linear	69.0 µm/m-°C	38.3 µin/in-°F	via TMA
Specific Heat Capacity	0.837 J/g-°C	0.200 BTU/lb-°F
Thermal Conductivity	0.126 W/m-K	0.874 BTU-in/hr-ft²-°F	ASTM C177
Melting Point	420 °C	788 °F	via DSC
Maximum Service Temperature, Air	60.0 °C	140 °F	Continuous
	80.0 °C	176 °F	Short Term
Softening Point	160 °C	320 °F	T5 Point - modulus = 690 MPa (100,000 psi)
	>= 300 °C	>= 572 °F	T4 point - modulus = 70 MPa (10,000 psi)

Optical Properties	Metric	English	Comments
Refractive Index	1.661 @Wavelength 589.3 nm	1.661 @Wavelength 589.3 nm	n_D; Abbe Refractometer
Transmission, Visible	80 % @Wavelength 400 nm	80 % @Wavelength 400 nm
UV Transmittance	<= 1.0 % @Wavelength 277 nm	<= 1.0 % @Wavelength 277 nm	cutoff
	60 % @Wavelength 300 nm	60 % @Wavelength 300 nm
	75 % @Wavelength 350 nm	75 % @Wavelength 350 nm

Compliance Properties	Metric	English	Comments
USP Class VI	Yes	Yes

Descriptive Properties
Biocompatibility	ISO 10993
Hydrogen Transmission	212.6 cc-mm/m²-24hr-atm		ASTM D1434
UV Stability	> 2000 hours		ASTM G154

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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PPARYL92 / 171626

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