HumiSeal® 1B73EPA is a fast-drying, single-component acrylic conformal coating designed for use on printed circuit assemblies. This coating provides excellent flexibility and protection, while also fluorescing under UV light for easy inspection. HumiSeal® 1B73EPA is easily repairable and meets multiple global standards, including MIL-I-46058C, IPC-CC-830, RoHS Directive 2015/863/EU, and EPA 33/50. It is also recognized under UL File Number E105698, ensuring high performance and compliance.
Key Features of HumiSeal® 1B73EPA:
- Fast-drying, single-component acrylic conformal coating
- Designed for use on printed circuit assemblies
- Excellent flexibility for versatile applications
- Fluorescence under UV light for easy inspection
- Easily repairable
- MIL-I-46058C qualified
- Compliant with IPC-CC-830 and RoHS Directive 2015/863/EU
- EPA 33/50 compliant
- Recognized under UL File Number E105698
Application of HumiSeal® 1B73EPA Conformal Coating
HumiSeal® 1B73EPA is ideal for protecting printed circuit assemblies in demanding environments. It can be applied to substrates that are cleaned or assembled with low-residue “no clean” materials. Contact HumiSeal for further technical support and guidance on its application.
Choose HumiSeal® 1B73EPA for dependable, flexible protection and easy inspection of 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 | 0.96 ± .03 g/cm3 |
| Solids Content, % by weight per Fed-Std-141, Meth. 4044 | 23 ± 3 % |
| Viscosity, per Fed-Std-141, Meth. 4287 | 230 ± 30 centipoise |
| VOC | 739 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 60 min. @ 76°C |
| Time Required to Reach Optimum Properties | 7 days |
| Recommended Thinner | HumiSeal® Thinner 600 |
| Recommended Stripper | HumiSeal® Stripper 1080, 1080A |
| 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 1010 ohms (70GΩ) |
| Fungus Resistance, per ASTM G21 | Passes |
