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 |
|
