The HumiSeal 1C49LV Silicone Conformal Coating is a silicone coating that is ideal for circuit assemblies. It is low viscosity, VOC and solvent free, and cures with moisture. It provides flexibility and protection against moisture and environmental factors. Additionally, it fluoresces when exposed to UV light to assist with the inspection. The coating can be applied through spraying, brushing, or dipping methods.
FEATURES
silicone based
room temperature, moisture cure
single component
high solids
HumiSeal 1C49LV conformal coating has
No VOCs or solvent
excellent environmental resistance and moisture resistance
RoHS directive 2015/863/EU
low toxicity
Typical Properties
Product Specification
Density, per ASTM D1475
0.97 ± 0.03 g/cm³
Min. Solids Content, % by weight per Fed-Std-141, Meth. 4044
90 %
Viscosity, per Fed-Std-141, Meth. 4287
550 ± 250 centipoise
VOC
0 grams/litre
Recommended Coating Thickness
50 – 200 microns
Drying Time to Handle per Fed-Std-141, Meth. 4061
60 min
Recommended Curing Conditions
24 hrs @ RT or 20 min @ 76°C*
Time required to Reach Optimum Properties
7 days
Recommended Stripper
HumiSeal Stripper 1091
Shelf Life at Room Temperature, DOM
12 months
Thermal Shock, 50 cycles per MIL-I-46058C
-65°C to 200°C
Coefficient of Thermal Expansion – TMA
323 ppm /ºC above Tg
Glass Transition Temperature – DSC
< -65°C
Modulus – DMA
9.0 MPa @ -40ºC
3.8 MPa @ 25ºC
3.2 MPa @ 80ºC
Tensile, per ASTM D412
30-50 psi
Elongation, per ASTM D412
80-120 %
Flammability, per UL94
V-0
Dielectric Withstand Voltage, per MIL-I-46058C
>1500 volts
Dielectric Breakdown Voltage, per ASTM D149
7000 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
