HumiSeal 2A53 is a dual-component epoxy coating consisting of Parts A and B, ideal for use on standard printed circuit boards and in scenarios where high resistance to solvents or chemicals is necessary. The coating can be inspected under UV light as it fluoresces. HumiSeal 2A53 has been approved by MIL-I-46058C and complies with IPC-CC-830 and RoHS Directive 2002 95 EC.
Product Specification | |
Density, per ASTM D1475 | 0.93 ± 0.03 g/cm³ |
Solids Content, % by weight per Fed-Std-141, Meth. 4044 | 54 ± 5 % |
Viscosity, per Fed-Std-141, Meth. 4287 | 350 ± 150 centipoise |
VOC | 455 grams/litre |
Recommended Coating Thickness | 25 – 75 microns |
Drying Time to Handle per Fed-Std-141, Meth. 4061 | 5 hrs |
Time Required to Reach Optimum Properties | 7 days |
Optional Curing Conditions to Reach Optimum Properties | 2 hrs @ 93°C |
Recommended Thinner | HumiSeal Thinner 535 |
Pot Life at Room Temperature | 24 hours |
Shelf Life at Room Temperature, DOM | 12 months |
Thermal Shock, 50 cycles per MIL-I-46058C | 100 psi |
Coefficient of Thermal Expansion – TMA | 56 ppm/°C |
Glass Transition Temperature – DSC | 19°C |
Modulus – DMA | 32.2 MPa |
Flammability, per MIL-I-46058C | Self-Extinguishing |
Flammability, per UL94 | V-1 |
Dielectric Withstand Voltage, per MIL-I-46058C | >1500 volts |
Dielectric Breakdown Voltage, per ASTM D149 | 8000 volts |
Moisture Insulation Resistance, per MIL-I-46058C | 2.8 x 1010 ohms (28GΩ) |
Fungus Resistance, per ASTM G21 | Passes |
Resistance to Chemicals | Excellent |