HumiSeal 1A33LTX Urethane Conformal Coating
Harmonization Code : 3906909090 | Acrylic polymers in primary form Others>Others
Main features
- Fluoresces under UV light for easy inspection and rework
- Available in pre-blended viscosities for immediate use
- Easy application using automated coating systems
Product Description
HumiSeal 1A33 LTX is a high-solids, single-component polyurethane conformal coating engineered for maximum reliability in demanding environments. 1A33 LTX provides the best protection of the 1A33 series—offering superior resistance to moisture, dirt, and corrosion—while meeting modern environmental mandates such as GB30981-2020.
Product Key Features
- Reliable protection against moisture, salt spray, corrosive environments, and dirt
- Low moisture vapor permeability for long-term electrical reliability
- Fluoresces under UV light for easy inspection and rework
- Easy application using automated coating systems
- Available in pre-blended viscosities for immediate use
- No free isocyanates
- Fully compliant with GB30981-2020 VOC requirements
Applications
- Printed circuit boards (PCBs)
- Automotive electronics
- Industrial control systems
- Consumer electronics
- Power supplies and converters
- Electronic assemblies exposed to harsh or corrosive environments
HS-1A33LTX
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Shipping in 6 weeksPackaging
TDS, SDS & Technical Documents
- 1A33-LTX
Technical Specifications
General Properties
Thermal Properties
Electrical Properties
Additional Information
Application Methods
HumiSeal® 1A33 LTX pre-blended products are supplied at controlled viscosities and are ready for immediate use, requiring no additional dilution. Customers should select the appropriate pre-blend based on their coating equipment and application method prior to production use.
Cleanliness of the substrate is critical for successful conformal coating application. PCB surfaces must be free of moisture, dust, wax, grease, flux residues, and other contaminants. Contamination beneath the coating may lead to adhesion failure or reduced long-term reliability.
Application Compatibility
HumiSeal® 1A33 LTX is compatible with automated selective coating systems, spray coating, and dipping processes commonly used in electronics manufacturing. The coating fluoresces under UV light, enabling fast visual inspection, coverage verification, and straightforward repair when required.
Safety and Handling Precautions ⚠️
Application of HumiSeal® conformal coatings must be carried out in accordance with local and national health and safety regulations. The solvents contained in this product are flammable and should not be used near open flames, sparks, or other ignition sources.
Use only in well-ventilated areas to prevent inhalation of vapors or spray mist. Avoid contact with skin and eyes. Always consult the Safety Data Sheet (SDS) before use.
Storage Recommendations 📦
Store HumiSeal® 1A33 LTX and its pre-blended products in tightly closed containers, protected from excessive heat or cold. Recommended storage temperature is between 0°C and 35°C.
Prior to use, allow the product to equilibrate for 24 hours at a room temperature between 18°C and 32°C.
Compliance You Can Trust ✅
- MIL-I-46058C qualified
- IPC-CC-830 compliant
- RoHS Directive 2011/65/EU compliant
- UL Recognized (File E105698)
- GB30981-2020 compliant formulation
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