HumiSeal® 1B73LOC is an advanced acrylic conformal coating designed to protect printed circuit assemblies while meeting strict North American air quality standards. As a low-VOC, solvent-based solution, it provides robust protection for sensitive electronic components, all within a single-component, fast-drying formula that simplifies application and inspection.
HumiSeal® 1B73LOC Features
- Environmental Compliance: HumiSeal® 1B73LOC is a low-VOC conformal coating, meeting North American air quality regulations, making it a sustainable option for sensitive applications.
- Fast-Drying and Efficient Application: This single-component coating dries quickly, allowing for faster processing times and improved production efficiency.
- Enhanced Inspection with UV Fluorescence: Fluoresces under UV light for quick, thorough inspection, making quality control easier and more effective.
- Easy Repairability: HumiSeal® 1B73LOC is easily repaired, providing flexibility in maintenance and reducing the need for complete reapplication.
- Industry Compliance and Standards: HumiSeal® 1B73LOC is MIL-I-46058C qualified, IPC-CC-830 compliant, and adheres to RoHS Directive 2011/65/EU. It also holds UL recognition under File Number E105698, ensuring reliability and broad compatibility with industry requirements.
In summary, HumiSeal® 1B73LOC offers a balanced solution with quick application, effective inspection, and compliance with industry and environmental standards, making it an ideal choice for conformal coating in electronics.
About Prostech
Prostech offers specialty materials (adhesives, tapes, thermal interface materials, insulating materials, sealants, PCB protection materials, …) along with manufacturing solutions. We proudly serve a wide range of industries and are an authorized distributor for leading global manufacturers of industrial materials and equipment. Our product range is designed to deliver customized solutions that address each customer’s unique needs.
With years of experience and a successful project history, we are confident in our ability to provide comprehensive material solutions. These solutions effectively tackle the challenges manufacturers face. To explore our full product catalog, simply click here. Our dedicated team is ready to assist with:
- Provide quotation, sample, TDS/MSDS, and technical consultation
- Testing sample quality and verifying product compatibility in our laboratory
- Customizing material formulas for special applications
- Adapting product sizes, quantities, and packaging to meet specific needs
- Offering expert advice on suitable equipment and automation processes
- Delivering technical training and on-site support for optimal product use
Moreover, Prostech ensures the safe and accurate global delivery of all materials, including “dangerous goods”, in compliance with legal regulations. For personalized technical support or to receive a quotation, please contact us today.
| Property | Value |
| Density (per ASTM D1475) | 1.23 ± 0.03 g/cm³ |
| Solids Content (% by weight, per Fed-Std-141, Meth. 4044) | 26 ± 2 % |
| Viscosity (per Fed-Std-141, Meth. 4287) | 445 ± 30 centipoise |
| VOC | 92 grams/litre |
| Drying Time to Handle (per Fed-Std-141, Meth. 4061) | 25 minutes |
| Recommended Coating Thickness | 25 – 75 microns |
| Recommended Curing Conditions | 24 hrs @ RT or 2 hrs @ 76°C |
| Time Required to Reach Optimum Properties | 7 days |
| Recommended Thinner | HumiSeal® Thinner 701 |
| Recommended Stripper | HumiSeal® Stripper 1080, 1080A |
| Shelf Life at Room Temperature | 24 months |
| Thermal Shock (50 cycles, per MIL-I-46058C) | -65°C to 125°C |
| Coefficient of Thermal Expansion (TMA) | 67 ppm/°C |
| Glass Transition Temperature (DSC) | 42°C |
| Modulus (DMA) | 11.1 MPa |
| Flammability (per UL 94) | V-0 |
| Dielectric Withstand Voltage (per MIL-I-46058C) | >1500 volts |
| Dielectric Breakdown Voltage (per ASTM D149) | 6300 volts |
| Dielectric Constant (at 1MHz and 25°C, per ASTM D150-98) | 2.6 |
| Dissipation Factor (at 1MHz and 25°C, per ASTM D150-98) | 0.01 |
| Insulation Resistance (per MIL-I-46058C) | 5.5 x 10¹⁴ ohms (550TΩ) |
| Moisture Insulation Resistance (per MIL-I-46058C) | 7.0 x 10¹⁰ ohms (70GΩ) |
| Fungus Resistance (per ASTM G21) | Passes |
