Aerosol conformal coating 1B18

Model No:	1B18

HumiSeal® 1B18 Acrylic Conformal Coating is a single component, fast curing acrylic coating that is used for circuit assemblies and can be easily repaired. It offers excellent electrical properties, flexibility, and fluoresces under UV light to aid inspection. It can be applied by spraying, brushing, or dipping methods.

Product Enquiry

HumiSeal® 1B18 aerosol conformal coating is:

an acrylic chemistry
fast drying
single component
IPC-CC-830 compliant

HumiSeal® 1B18 aerosol conformal coating has:

excellent moisture and environmental protection for printed circuit assemblies
excellent flexibility
fluorescence under UV light for ease of inspection
reworkability with ease
RoHS Directive 2011/65/EC compliance

Application of HumiSeal® 1B18 aerosol Conformal Coating

Allow 48 hours minimum to reach room temperature before using cans stored or received during cold weather.
When applied in conditions of high ambient humidity, blushing (cloudy white film) may appear. Heating the coated assembly in an oven for 1/2 hour at 76°C eliminates this condition.
Surface must be cleaned of dirt, wax, grease, flux residues and all similar contaminants for successful application of the coating.
Mask areas not requiring coating from overspray using suitable non-silicone masking methods or materials.
Shake can vigorously before using and repeat frequently during use.
Best results are obtained by spraying from a distance of 30 – 40 cm in light even coats. A film thickness of 25 – 75 microns is sufficient to provide protection.
To clean nozzle after use, hold can upside down, then press nozzle for a few seconds.

Specification:

Product Specification
Density, per ASTM D1475	0.74 ± 0.02 g/cm³
Solids Content, % by weight per Fed-Std-141, Meth. 4044	7 ± 1 %
VOC	687.5 grams/liter
Drying Time to Handle per Fed-Std-141, Meth. 4061	30 minutes
Recommended Coating Thickness	25 -75 microns
Recommended Curing Conditions	24 hrs @ RT or 2 hrs @ 76°C
Time Required to Reach Optimum Properties	7 days
Recommended Stripper	HumiSeal® Stripper 1080, 1080A
Shelf Life at Room Temperature, DOM	24 months
Thermal Shock, 50 cycles per MIL-I-46058C	-65°C to 125°C
Coefficient of Thermal Expansion – TMA	67 ppm/°C
Glass Transition Temperature – DSC	42°C
Modulus – DMA	11.1 MPa
Flammability, per UL 94	V-0
Dielectric Withstand Voltage, per MIL-I-46058C	>1500 volts
Dielectric Breakdown Voltage, per ASTM D149	6300 volts
Dielectric Constant, at 1MHz and 25°C, per ASTM D150-98	2.6
Dissipation Factor, at 1MHz and 25°C, per ASTM D150-98	0.010
Insulation Resistance, per MIL-I-46058C	5.5 x 10¹⁴ ohms (550TΩ)
Moisture Insulation Resistance, per MIL-I-46058C	7.0 x 10¹⁰ ohms (70GΩ)
Fungus Resistance, per ASTM G21	Passes