HumiSeal® 1A20R is a high-performance, single-component polyurethane conformal coating, designed to provide exceptional chemical resistance and fast curing. Engineered to protect printed circuit assemblies (PCAs), HumiSeal® 1A20R offers excellent environmental protection and is optimized for ease of inspection with UV fluorescence.
HumiSeal® 1A20R Key Features
- Urethane-Based Chemistry: Delivers superior chemical resistance, ensuring long-lasting durability for electronic components.
- Fast Curing: Accelerates production timelines while maintaining reliable performance.
- Single-Component Design: Simplifies application and reduces preparation time, improving workflow efficiency.
- Enhanced Environmental Protection: Offers outstanding protection against moisture and harsh environmental conditions, extending the life of PCAs.
- UV Fluorescence for Inspection: Fluoresces under UV light, making it easy to inspect for quality control.
- Versatile Application: Compatible with Thinner 521 for precise application tailored to specific needs.
Compliance and Certifications
HumiSeal® 1A20R meets stringent industry standards, ensuring safety and reliability:
- MIL-I-46058C Qualified: Trusted for military-grade applications.
- IPC-CC-830 Compliant: Certified for high-quality conformal coating in electronics.
- RoHS Directive 2002/95/EC Compliant: Environmentally responsible and free from restricted hazardous substances.
- UL Recognized (UL File Number E105698): Certified for safe and consistent application in electronics manufacturing.
Why Choose HumiSeal® 1A20R?
HumiSeal® 1A20R stands out as a top-tier polyurethane conformal coating, providing fast curing, superior chemical resistance, and reliable protection for printed circuit assemblies. With its ease of application and adherence to critical industry standards, HumiSeal® 1A20R is the ideal solution for safeguarding electronic components in demanding environments.
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) | 1.02 ± 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 | 511 grams/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, for dipping, brushing, spraying) | HumiSeal® Thinner 521, 521EU |
| Recommended Stripper | HumiSeal® Stripper 1072 |
| Shelf Life at Room Temperature, DOM | 12 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 |
| 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) | 0.028 |
| Insulation Resistance (per MIL-I-46058C) | 3.0 x 10¹⁴ ohms (300TΩ) |
| Moisture Insulation Resistance (per MIL-I-46058C) | 4.8 x 10¹⁰ ohms (48GΩ) |
| Fungus Resistance (per ASTM G21) | Passes |
| Resistance to Chemicals | Excellent |
