HumiSeal® 1A20 is a single component, chemically resistant, fast curing polyurethane conformal coating. HumiSeal® 1A20 fluoresces under UV light for ease of inspection. HumiSeal® 1A20 coating is MIL-I-46058C qualified, IPC-CC830 and RoHS Directive 2002/95/EC compliant and recognized under UL File Number E105698.
Product Specification | |
Density, per ASTM D1475 | 1.02 ± 0.02 g/cm3 |
Solids Content, % by weight per Fed-Std-141, Meth. 4044 | 50 ± 3 % |
Viscosity, per Fed-Std-141, Meth. 4287 | 100 ± 30 centipoise |
VOC | 511grams/litre |
Recommended Coating Thickness | 25 -75 microns |
Drying Time to Handle per Fed-Std-141, Meth. 4061 | 60 minutes |
Recommended Curing Conditions | 24 hrs @ RT or 3 hrs @ 76°C |
Time Required to Reach Optimum Properties | 7 days |
Thinner, if needed (dipping, brushing, spraying) | HumiSeal® Thinner 521, 521EU |
Recommended Stripper | HumiSeal® Stripper 1072 |
Shelf Life at Room Temperature, DOM | 6 months |
Thermal Shock, per MIL-I-46058C | -65°C to 125°C |
Coefficient of Thermal Expansion – TMA | 515 ppm/°C |
Glass Transition Temperature – DSC | 71°C |
Modulus – DMA | 89.6 MPa |
Flammability, per UL94 | V-0 |
Dielectric Withstand Voltage, per MIL-I-46058C | >1500 volts |
Dielectric Constant, at 1MHz and 25°C per ASTM D150-98 | 3.5 |
Dissipation Factor, at 1MHz and 25°C per ASTM D150-98 | 0.028 |
Insulation Resistance, per MIL-I-46058C | 3.0 x 1014 ohms (300TΩ) |
Moisture Insulation Resistance, per MIL-I-46058C | 4.8 x 1010 ohms (48GΩ) |
Fungus Resistance, per ASTM G21 | Passes |
Resistance to Chemicals | Excellent |