HumiSeal 1A33-11.5-OZ, Type 1A33 Polyurethane Conformal Coating, 11.5 Oz.
HumiSeal 1A33 — Type 1A33 Polyurethane Conformal Coating, 11.5 oz
HumiSeal 1A33 is a one-component, fast-curing polyurethane conformal coating providing excellent moisture, chemical, and abrasion resistance for PCBs and electronic assemblies. UV fluorescent for easy inspection, qualified to MIL-I-46058C and IPC-CC-830. The 11.5 oz format is ideal for lower-volume production, lab use, or prototype coating operations.
Key Specifications
- Part Number: 1A33-11.5-OZ
- Type: One-component polyurethane (Type UR) conformal coating
- Size: 11.5 oz
- Application: Spray (ready-to-use)
- UV Fluorescence: Yes
- Standards: MIL-I-46058C, IPC-CC-830
- Cure: Fast, room temperature
Applications
- PCB conformal coating for moisture and chemical protection
- Lab, prototype, and low-volume production coating
- Aerospace, defense, and industrial electronics
- Applications requiring MIL-spec or IPC-CC-830 compliance
- Spot coating and touch-up applications
Frequently Asked Questions
What is the difference between HumiSeal 1A33 11.5oz and the 5L pail?
Both contain the same 1A33 polyurethane formulation. The 11.5 oz format is suited for lab, prototype, and low-volume applications. The 5L pail is more economical for high-volume production spray coating operations.
What is the difference between HumiSeal 1A33 (polyurethane) and 1B73 (acrylic)?
1A33 is a polyurethane (Type UR) coating offering better chemical and abrasion resistance than acrylic coatings. However, polyurethane is harder to rework than acrylic. Choose 1A33 for harsh chemical environments; choose 1B73 for easier rework requirements.
Is HumiSeal 1A33 qualified to MIL-I-46058C?
Yes. HumiSeal 1A33 is qualified to MIL-I-46058C and IPC-CC-830, making it suitable for defense, aerospace, and other applications requiring certified conformal coating materials.
How is HumiSeal 1A33 inspected after application?
The UV fluorescent formulation allows inspection under UV/blacklight to verify coverage, detect holidays (missed areas), and confirm coating uniformity.
Does HumiSeal 1A33 require thinning before spray application?
The 1A33 formulation is designed for spray application without additional thinning. Always consult the HumiSeal 1A33 technical datasheet for current application recommendations and equipment settings.
