Chase Electronic Coatings HumiSeal® 1B59LU Rubber Conformal Coating

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Chase Electronic Coatings HumiSeal® 1B59LU Rubber Conformal Coating
Categories:	Polymer; Thermoset; Rubber or Thermoset Elastomer (TSE)
Material Notes:	HumiSeal® 1B59LU is an air drying, single component, synthetic rubber conformal coating. The unique chemistry, of HumiSeal® 1B59LU imparts extremely low moisture vapor permeability and improved heat resistance. The coating demonstrates excellent flexibility, low stress on components, fluoresces under UV for ease of inspection and is easily repaired. The coating is in full compliance with the RoHS Directive 2011/65/EC and meets the requirements of IPC-CC-830. Information provided by Chase Electronic Coatings.
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Physical Properties	Metric	English	Comments

Density	0.790 g/cc	0.0285 lb/in³	ASTM D1475
Solids Content	18.5 %	18.5 %	By weight, ± 1.5%; Fed-Std-141, Meth. 4044
Volatile Organic Compounds (VOC) Content	648 g/l	648 g/l
Water Vapor Transmission	26.0 g/m²/day @Temperature 40.0 °C	1.67 g/100 in²/day @Temperature 104 °F	90% R.H
Viscosity	140 - 280 cP	140 - 280 cP	Fed-Std-141, Meth. 4287. Part A
Thickness	25.0 - 75.0 microns	0.984 - 2.95 mil	Recommended coating

Electrical Properties	Metric	English	Comments
Volume Resistivity	8.50e+15 ohm-cm	8.50e+15 ohm-cm
Surface Resistance	3.10e+9 ohm @Temperature 85.0 °C	3.10e+9 ohm @Temperature 185 °F	85% RH, 50V
Surface Resistivity per Square	2.60e+15 ohm	2.60e+15 ohm
Insulation Resistance	1.80e+10 ohm	1.80e+10 ohm	Moisture; MIL-I-46058C
	8.40e+12 ohm	8.40e+12 ohm	MIL-I-46058C
Dielectric Constant	1.9 @Frequency 1e+6 Hz, Temperature 23.0 °C	1.9 @Frequency 1e+6 Hz, Temperature 73.4 °F
Dielectric Strength	85.0 kV/mm	2160 kV/in	JIS C2110.8.2.
Dissipation Factor	0.0040 @Frequency 1e+6 Hz, Temperature 23.0 °C	0.0040 @Frequency 1e+6 Hz, Temperature 73.4 °F

Thermal Properties	Metric	English	Comments
CTE, linear	18.5 µm/m-°C @Temperature <=-49.6 °C	10.3 µin/in-°F @Temperature <=-57.3 °F	Below Tg; TMA
	130 µm/m-°C @Temperature >=-49.6 °C	72.2 µin/in-°F @Temperature >=-57.3 °F	Above Tg; TMA
Maximum Service Temperature, Air	150 °C	302 °F
Minimum Service Temperature, Air	-65.0 °C	-85.0 °F
Glass Transition Temp, Tg	-49.6 °C	-57.3 °F	DSC

Processing Properties	Metric	English	Comments
Cure Time	300 min @Temperature 76.0 °C	5.00 hour @Temperature 169 °F	Option
	1440 min @Temperature 23.0 °C	24.0 hour @Temperature 73.4 °F
	10100 min @Temperature 23.0 °C	168 hour @Temperature 73.4 °F	Optimum Properties
Tack-Free Time	6.00 - 10.2 min	0.100 - 0.170 hour	Fed-Std-141, Meth. 4061
Shelf Life	6.00 Month @Temperature 23.0 °C	6.00 Month @Temperature 73.4 °F	DOM

Descriptive Properties
Dielectric Withstand	>1500 V		per MIL_I_46058C

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.

PCHAS931 / 239792

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