PROPERTIES1	METHOD OR CONDITIONS	PARYLENE  C	EPOXIES2	SILICONES2	URETHANES2
Dielectric strength, volts/mil short time (1 mil  films)	ASTM D149-64	5,000
Corr. to 1/8"	ASTM D149-64	590	400-500	550	450-500
Step-by-step (1 mil films)	ASTM D149-64	4,700	n/a	n/a	n/a
Volume resistivity, ohms (23ºC, 50% RH)	ASTM D257-61 (Dielectric -- 1 in2 mercury)	8.8 x 1016	1012-1017	2 x 1015	2 x 1011-1015
Surface resistivity, ohms (23ºC, 50% RH)	ASTM D257-61 (Dielectric -- 1 in2 mercury)	1014	n/a	n/a	n/a
Dielectric constant:	ASTM D160-65T (Dielectric -- 1 in2 mercury)
60 Hz		3.15	3.5-5.0	7.75-3.05	4-7.5
103 Hz		3.10	3.5-4.5	n/a	4-7.5
106 Hz		2.95	3.3-4.0	2.6-2.7	6.5-7.1
Dissipation factor:	ASTM D150-65T (Dielectric -- 1 in2 mercury)
60 Hz		0.020	0.002-0.01	0.007-0.001	0.015-0.017
103 Hz		0.019	0.002-0.02	n/a	0.05-0.06
106 Hz		0.013	0.03-0.05	0.001-0.002	n/a