Parylene Chemical Resistance

			diX C	diX N	Test Method (ASTM)	Epoxies	Urethanes
Density		g/cm3	1.31	1.11	D1505	1.1-1.4	1.1-2.5
Refractive welcome			1.65	1.66	D542	1.55-1.61	1.50-1.60
Tensile Modulus		GPa	3.2	2.4	D882
Tensile Strength		psi(lb/in2)	9,800	6,800	D882	4,000-13,000	1,000-10,000
Tensile Strength		MPa	67.6	46.9	D882	28-90	7-69
Yield Strength		psi(lb/in2)	9,500	7,250	D882
Yield Strength		MPa	65.5	50.0	D882	” width=”1″ height=”1″ />	” width=”1″ height=”1″ />
Elongation to Break		%	270	30	D882	3-6	100-1,000
Yield Elongation		%	3.6	2.5	D882
Rockwell Hardness			R80	R85	D785	M80-M110	–
Pencil Hardness			2H	3B	JIS K5600-5-4	” width=”1″ height=”1″ />	” width=”1″ height=”1″ />
Coefficient of Friction	Static		0.29	0.25	D1894	” width=”1″ height=”1″ />	” width=”1″ height=”1″ />
Coefficient of Friction	Dynamic		0.29	0.25	D1894	” width=”1″ height=”1″ />	” width=”1″ height=”1″ />
Melting Point			291	420	D3417	–	<170
Linear Coefficient of Expansion		10-6/	30.1	69.0	–	45-65	100-200
Dielectric Constant	60Hz		3.10	2.65	D150	3.5-5.0	5.3-7.8
	1KHz		2.83	2.65	D150	3.5-4.5	5.4-7.6
	1MHz		2.87	2.67	D150	3.3-4.0	4.2-5.2
	1GHz		2.81	” width=”1″ height=”1″ />	–	” width=”1″ height=”1″ />	” width=”1″ height=”1″ />
Dissipation Factor	60Hz		0.027	0.0002	D150	0.002-0.01	0.015-0.05
	1KHz		0.015	0.0002	D150	0.002-0.02	0.04-0.06
	1MHz		0.014	0.0009	D150	0.03-0.05	0.05-0.07
	1GHz		0.001	” width=”1″ height=”1″ />	–	” width=”1″ height=”1″ />	” width=”1″ height=”1″ />
Dielectric Strength		V/mil	6,900	7,000	D149	4,500-5,600	5,000-5,600
Volume Resistivity 23,50%RH		cm	6.9×1016	1.4×1017	D257	1012-1017	1011-1015
Surface Resistivity 23,50%RH			2.2×1015	1.0×1013	D257	1013	1014
Water Absorption 24hr		%	<0.1	<0.1	D570	<0.1-0.2	<0.1-1.5
Moisture Vapor Transmission 24hr,37,90%RH		gmil /100in2	0.016	1.6	F1249	1.8-2.4	2.4-8.7
Oxygen Transmission 24hr,1atm,23		cm3mil /100in2	5.38	206	D3985	5-10	200

Properties

Parylene Chemical Resistance

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