Humiseal 1B73-5L Conformal Coating Acrylic, Clear 5L (1Gallon) Pail
HumiSeal 1B73-5L — Acrylic Conformal Coating, 5L (1 Gallon) Pail
HumiSeal 1B73 is a fast-drying, single-component acrylic conformal coating offering excellent moisture and humidity protection for PCBs and electronic assemblies. UV fluorescent for easy inspection, qualified to MIL-I-46058C and IPC-CC-830, and UL 94 V-0 rated. The 5L pail format is ideal for high-volume spray or selective coating production operations.
Key Specifications
- Part Number: 1B73-5L
- Type: Single-component acrylic (Type AR) conformal coating
- Size: 5L (1 gallon) pail
- Application: Spray, selective, or brush
- UV Fluorescence: Yes
- Standards: MIL-I-46058C, IPC-CC-830, UL 94 V-0, RoHS
- Cure: Fast-dry, room temperature
Applications
- PCB conformal coating in electronics manufacturing
- Moisture and humidity protection for assembled circuit boards
- High-volume spray and selective coating production lines
- Consumer, industrial, and automotive electronics
- Applications requiring MIL-spec or IPC-CC-830 compliance
Frequently Asked Questions
What is the difference between HumiSeal 1B73 and 1B31?
Both are acrylic conformal coatings qualified to MIL-I-46058C and IPC-CC-830. 1B73 is formulated for spray application and offers a slightly different viscosity and dry time profile than 1B31. Both are UV fluorescent and RoHS compliant. Choose based on your application method and process requirements.
Is HumiSeal 1B73 easy to rework?
Yes. Acrylic conformal coatings like 1B73 are the easiest type to rework. They can be removed with compatible solvents, and spot rework through the coating with a soldering iron is generally straightforward compared to polyurethane or epoxy coatings.
How is HumiSeal 1B73 inspected after application?
The UV fluorescent formulation allows inspection under UV/blacklight to verify coverage, detect holidays (missed areas), and confirm coating uniformity across the PCB.
What application methods are compatible with HumiSeal 1B73?
HumiSeal 1B73 is compatible with spray, selective coating, and brush application. For high-volume production, spray or selective coating equipment is recommended for consistent film thickness and coverage.
What is the shelf life of HumiSeal 1B73?
Consult HumiSeal's product documentation for current shelf life specifications. Store in a cool, dry location away from heat and direct sunlight. Always reseal the container tightly after use to prevent solvent evaporation and skinning.
