HumiSeal® 1C49 Silicone Conformal Coating
HumiSeal® 1C49 is a moisture curing, high build, VOC-free silicone conformal coating which provides excellent
moisture and environmental protection for printed circuit assemblies. HumiSeal® 1C49 is solvent free. The coating
demonstrates outstanding flexibility, fluoresces under UV light for ease of inspection and can be repaired. HumiSeal®
1C49 can be cured at room or at elevated temperatures. HumiSeal® 1C49 is MIL-I-46058C qualified, IPC-CC-830 and
RoHS Directive 2011/65/EU compliant, and recognized under UL File Number E105698.
Properties of HumiSeal® 1C49
|
Density, per ASTM D1475 |
0.97 ± 0.03 g/cm³ |
|
Min. Solids Content, % by
weight per Fed-Std-141, Meth. 4044 |
95 % |
|
Viscosity, per
Fed-Std-141, Meth. 4287 |
9000 ± 1500 centipoise |
|
VOC |
0 grams/litre |
|
Recommended Coating
thickness |
50 - 200 microns |
|
Drying Time to Handle per Fed-Std-141, Meth. 4061 |
3 - 5 hours |
|
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 |
367 ppm /ºC |
|
Glass Transition Temperature - DSC |
< -65°C |
|
Modulus – DMA |
408 MPa @ -40ºC |
|
|
1.6 MPa @ 25ºC |
|
|
1.4 MPa @ 80ºC |
|
Tensile per ASTM D-412 |
30-50 psi |
|
Elongation per ASTM D-412 |
80-120 % |
|
Build per Dip, per ASTM D823 |
5 mils |
|
Flammability, per |
V-1 |
|
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 |
0.01 |
|
Insulation Resistance, per
MIL-I-46058C |
5.0 x 1014 ohms (500TΩ) |
|
Moisture Insulation
Resistance, per MIL-I-46058C |
1.0 x 1010 ohms (10GΩ) |
|
Fungus Resistance, per
ASTM G21 |
Passes |
|
