Chase Electronic Coatings HumiSeal® 1B51NSLU Rubber Conformal Coating

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Chase Electronic Coatings HumiSeal® 1B51NSLU Rubber Conformal Coating
Categories:	Polymer; Thermoset; Rubber or Thermoset Elastomer (TSE)
Material Notes:	HumiSeal® 1B51NSLU is a fast drying, single component, synthetic rubber conformal coating that contains methylcyclohexane solvent that is more environmentally friendly than traditional solvents. Because of its unique base polymer, HumiSeal® 1B51NSLU has extremely low moisture vapor permeability. The coating demonstrates excellent flexibility, low stress on components, fluoresces under UV for ease of inspection and is easily repaired. HumiSeal® 1B51NSLU is in full compliance with the RoHS Directive 2002/95/EC. Information provided by Chase Electronic Coatings.
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Physical Properties	Original Value	Comments

Density	0.810 g/cc	ASTM D1475
Solids Content	22 %	± 2%. By weight; Fed-Std-141, Meth. 4044
Volatile Organic Compounds (VOC) Content	632 g/l
Viscosity	155 - 215 cP	Fed-Std-141, Meth. 4287. Part A
Thickness	25.0 - 75.0 microns	Recommended coating

Mechanical Properties	Original Value	Comments
Modulus of Elasticity	0.0931 GPa	DMA
	0.0353 GPa @Temperature 20.0 °C	DMA
	0.0735 GPa @Temperature 0.000 °C	DMA

Electrical Properties	Original Value	Comments
Insulation Resistance	1.00e+10 ohm	Moisture; MIL-I-46058C
	2.00e+14 ohm	MIL-I-46058C
Dielectric Constant	2.5 @Frequency 1e+6 Hz, Temperature 25.0 °C	ASTM D150-98
Dielectric Breakdown	4900 V	ASTM D149
Dissipation Factor	0.070 @Frequency 1e+6 Hz, Temperature 25.0 °C	ASTM D150-98

Thermal Properties	Original Value	Comments
CTE, linear	55.0 µm/m-°C	TMA
Glass Transition Temp, Tg	14.0 °C	DSC

Processing Properties	Original Value	Comments
Cure Time	0.500 hour @Temperature 76.0 °C	Option
	24.0 hour @Temperature 23.0 °C
	168 hour @Temperature 23.0 °C	Optimum Properties
Tack-Free Time	0.170 hour	Fed-Std-141, Meth. 4061
Shelf Life	18.0 Month @Temperature 23.0 °C	DOM

Descriptive Properties
Dielectric Withstand	>1500 V	per MIL_I_46058C
Fungus Resistance	Passes	ASTM G21
Moisture Vapor Transmission	<1 g/m2•day•mil	ASTM E398-03
Thermal Shock	-65 to 125°C	per MIL_I_46058C, 50 cycles

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PCHAS929 / 239790

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