HumiSeal - 1B31 Acrylic Conformal Coating
HumiSeal® 1B31 is a fast drying, single component, acrylic conformal coating that provides excellent moisture and environmental protection for printed circuit assemblies. HumiSeal® 1B31 demonstrates excellent flexibility, fluoresces under UV light for ease of inspection and is easily repaired.
HumiSeal® 1B31 is a fast drying, single component, acrylic conformal coating that provides excellent moisture and environmental protection for printed circuit assemblies. HumiSeal® 1B31 demonstrates excellent flexibility, fluoresces under UV light for ease of inspection and is easily repaired. HumiSeal® 1B31 coating is MIL-I-46058C qualified, IPC-CC-830 and RoHS Directive 2002/95/EC compliant.
Cleanliness of the substrate is of extreme importance for the successful application of a conformal coating. Surfaces must be free of moisture, dirt, wax, grease, flux residues and all other contaminants. Contamination under the coating could cause problems that may lead to assembly failures.
|Density, per ASTM D1475||0.91 ± 0.02 g/cm3|
|Solids Content, % by weight per Fed-Std-141, Meth. 4044||35 ± 3 %|
|Viscosity, per Fed-Std-141, Meth. 4287||200 ± 15 centipoise|
|Drying Time to Handle per Fed-Std-141, Meth. 4061||10 minutes|
|Recommended Coating Thickness||25 – 75 microns|
|Recommended Curing Conditions||24 hrs @ RT or 30 min @ 76°C|
|Time Required to Reach Optimum Properties||7 days|
|Recommended Thinner (dipping & brushing)||HumiSeal Thinner 503|
|Recommended Thinner (spraying)||HumiSeal Thinner 521, 521EU|
|Recommended Stripper||Stripper 1080, 1080EU|
|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||170 ppm/°C below Tg340 ppm/°C above Tg|
|Glass Transition Temperature – DSC||14°C|
|Modulus – DMA||2000 MPa @ -40°C1050 MPa @ 20°C8.5 MPa @ 60°C|
|Flammability, per MIL-I-46058C||Self-Extinguishing|
|Dielectric Withstand Voltage, per MIL-I-46058C||>1500 volts|
|Dielectric Breakdown Voltage, per ASTM D149||7500 volts|
|Dielectric Constant, at 1MHz and 25°C per ASTM D150-98||2.5|
|Dissipation Factor, at 1MHz and 25°C per ASTM D150-98||0.01|
|Insulation Resistance, per MIL-I-46058C||8.0 x 1014 ohms (800TO)|
|Moisture Insulation Resistance, per MIL-I-46058C||6.0 x 1010 ohms (60GO)|
|Fungus Resistance, per ASTM G21||Passes|
Material Safety Data Sheet (MSDS): Click Here
Technical Data Sheet (TDS): Click Here
*Actual product colours may vary from on-screen and printed representations.
There are no reviews yet.