– Item Name: HumiSeal® 1B73
– Manufacturer: HumiSeal
– Technologies: Single-component, fast-drying acrylic conformal coating
– Color: Not specified
– Cure Type: 24 hrs at room temperature or 2 hrs at 76°C
– Package Size: Contact to Avantek for details.
– Shelf Life: 24 months
HumiSeal® 1B73 is a fast-drying, single-component acrylic conformal coating designed for printed circuit assemblies (PCBs). It offers excellent flexibility, electrical insulation, and UV fluorescence for inspection. The product complies with MIL-I-46058C, IPC-CC-830, UL (File E105698), and RoHS Directive 2011/65/EU. It is easily repairable and can be applied through dipping, spraying, or brushing.
| Property | Value | Test Method |
|---|---|---|
| Density | 0.92 ± 0.02 g/cm³ | ASTM D1475 |
| Solids Content | 29.5 ± 2% | Fed-Std-141, Method 4044 |
| Viscosity | 250 ± 20 cPs | Fed-Std-141, Method 4287 |
| VOC | 661 g/L | – |
| Shelf Life | 24 months | – |
| Property | Value | Test Method |
|---|---|---|
| Drying Time to Handle | 30 min | Fed-Std-141, Method 4061 |
| Recommended Coating Thickness | 25 – 75 µm | – |
| Curing Conditions | 24 hrs @ RT or 2 hrs @ 76°C | – |
| Time to Reach Optimum Properties | 7 days | – |
| Thermal Shock Resistance | -65°C to 125°C (50 cycles) | MIL-I-46058C |
| Glass Transition Temperature (Tg) | 42°C | DSC |
| Coefficient of Thermal Expansion | 67 ppm/°C | TMA |
| Modulus | 11.1 MPa | DMA |
| Flammability Rating | V-0 | UL 94 |
| Dielectric Withstand Voltage | >1500V | MIL-I-46058C |
| Dielectric Breakdown Voltage | 6300V | ASTM D149 |
| Dielectric Constant (1MHz, 25°C) | 2.6 | ASTM D150-98 |
| Dissipation Factor (1MHz, 25°C) | 0.010 | ASTM D150-98 |
| Insulation Resistance | 5.5 × 10¹⁴ Ω | MIL-I-46058C |
| Moisture Insulation Resistance | 7.0 × 10¹⁰ Ω | MIL-I-46058C |
| Fungus Resistance | Passes | ASTM G21 |
Thinner: HumiSeal® Thinner 73
Remover: HumiSeal® Stripper 1080, 1080A
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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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