HumiSeal® 1B18 is a single-component, fast-drying acrylic conformal coating designed for use on printed circuit assemblies. It offers excellent flexibility, superior electrical properties, and protection against moisture and environmental factors. Additionally, HumiSeal® 1B18 fluoresces under UV light, making inspection easier, and is easily repairable. This coating complies with RoHS Directive 2015/863/EU and is recognized under UL File Number E105698.
Key Features of HumiSeal® 1B18:
- Acrylic chemistry
- Fast drying
- Single component
- Compatible with different thinner types for varying application environments
- Recognized under UL File Number E105698
- Excellent moisture and environmental protection
- High flexibility
- Fluorescence under UV light for ease of inspection
- Reworkable for ease of repair
- IPC-CC-830 compliance
- RoHS Directive 2015/863/EU compliant
Application of HumiSeal® 1B18 Conformal Coating
HumiSeal® 1B18 can be applied to cleaned substrates or those assembled with low-residue “no clean” materials. Adequate testing should be performed to ensure compatibility with assembly materials and process conditions. For further information, contact HumiSeal technical support.
Choose HumiSeal® 1B18 for reliable, flexible protection in your printed circuit assemblies.
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.
| Product Specification | |
| Density, per ASTM D1475 | 0.92 ± 0.02 g/cm³ |
| Solids Content, % by weight per Fed-Std-141, Meth. 4044 | 30 ± 2 % |
| Viscosity, per Fed-Std-141, Meth. 4287 | 250 ± 20 centipoise |
| VOC | 654 grams/litre |
| Drying Time to Handle per Fed-Std-141, Meth. 4061 | 30 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 73 |
| Recommended Stripper | HumiSeal Stripper 1080 |
| Shelf Life at Room Temperature, DOM | 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 109 ohms (70GΩ) |
| Fungus Resistance, per ASTM G21 | Passes |
