HumiSeal® 1A20R is a single component, chemically resistant, fast curing polyurethane conformal coating. HumiSeal® 1A20R fluoresces under UV light for ease of inspection. HumiSeal® 1A20R coating is MIL-I-46058C qualified, IPC-CC-830 and RoHS Directive 2002/95/EC compliant.
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
