HumiSeal® 2A53 is a two-component epoxy conformal coating designed for protecting printed circuit boards (PCBs) in environments requiring exceptional resistance to solvents and chemicals. It meets MIL-I-46058C and IPC-CC-830 standards and is RoHS compliant. The coating fluoresces under UV light for inspection and offers self-extinguishing flammability properties.
| Property | Part A | Part B | Mixed |
|---|---|---|---|
| Density (ASTM D1475) | – | – | 0.93 ± 0.03 g/cm³ |
| Solids Content (Fed-Std-141, Meth. 4044) | – | – | 54 ± 5 % |
| Viscosity (Fed-Std-141, Meth. 4287) | – | – | 350 ± 150 cP |
| VOC | – | – | 455 g/L |
| Recommended Coating Thickness | – | – | 25 – 75 microns |
| Drying Time to Handle (Fed-Std-141, Meth. 4061) | – | – | 5 hours |
| Time to Reach Optimum Properties | – | – | 7 days (or 2 hours at 93°C) |
| Pot Life at Room Temperature | – | – | 24 hours |
| Shelf Life at Room Temperature | – | – | 12 months |
| Thermal Shock Resistance (MIL-I-46058C) | – | – | -65°C to 125°C |
| Coefficient of Thermal Expansion (TMA) | – | – | 56 ppm/°C |
| Glass Transition Temperature (DSC) | – | – | 19°C |
| Modulus (DMA) | – | – | 32.2 MPa |
| Flammability (MIL-I-46058C) | – | – | Self-Extinguishing |
| Dielectric Withstand Voltage (MIL-I-46058C) | – | – | >1500 volts |
| Dielectric Breakdown Voltage (ASTM D149) | – | – | 8000 volts |
| Dielectric Constant (ASTM D150-98, 1MHz, 25°C) | – | – | 3.0 |
| Dissipation Factor (ASTM D150-98, 1MHz, 25°C) | – | – | 0.03 |
| Insulation Resistance (MIL-I-46058C) | – | – | 2.0 x 10¹⁴ ohms (200TΩ) |
| Moisture Insulation Resistance (MIL-I-46058C) | – | – | 2.8 x 10¹⁰ ohms (28GΩ) |
| Fungus Resistance (ASTM G21) | – | – | Passes |
| Resistance to Chemicals | – | – | Excellent |
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Everwide FX219G5 Silicone Potting Compound – high-thermal, UL94 V-0 silicone potting for electronic modules. Compare with Shin-Etsu KET-132 silicone potting.
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Avantek Viet Nam is a dynamic MRO, direct materials and equipment supplier that brings advanced technological solutions to maximize satisfaction of customers.
We are expert in import and export of adhesives, accessories and equipment in both domestic and cosmetic industrial fields, production and technology research and development.
Our solutions promise to bring best optimal effectiveness along with competitive prices, excellent customer services, dedicated on-site support.
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