-Item Name: HumiSeal® UV550
-Manufacturer: HumiSeal
-Technologies: UV curable elastomeric acrylate conformal coating
-Color: Not specified
-Cure Type: UV cure with secondary moisture cure
-Package Size: Contact to Techniq VN for details.
-Shelf Life: 12 months
HumiSeal® UV550 is a solvent-free, UV-curable elastomeric acrylate conformal coating designed for high flexibility and durability. It withstands at least 1000 cycles of thermal shock in areas with high thickness between adjacent components. The coating maintains stable surface insulation resistance (SIR) for over 1000 hours and can be cured using LED, Arc, or Microwave systems.
Excellent flexibility, adhesion, and moisture resistance
High electrical insulation properties over time
Strong chemical resistance
Fluoresces under UV light for inspection
Secondary moisture cure for shadowed areas (full cure within 7 days)
Minimal yellowing after high-temperature exposure
Silicone-free
Compliant with RoHS EU 2015/863, China RoHS 2, and GB30981-2020
HumiSeal® UV550 is suitable for:
Conformal coating of electronic circuit boards
Protection against moisture, chemicals, and thermal shock
Use in environments with extreme temperature variations (-65°C to 150°C)
Application via selective coating equipment or conventional hand spray
| Property | Value |
|---|---|
| Density | 1.03 ± 0.03 g/cm³ |
| Minimum Solids Content | 95% by weight |
| Viscosity (25°C) | 650 – 900 Centipoise |
| Shelf Life (Room Temperature) | 12 Months |
| Recommended Cure Method | UV or LED |
| Property | Value |
|---|---|
| Coating Thickness (IPC Guidelines) | 25 – 125 microns |
| Time to Optimum Properties | 7 days after UV/LED cure |
| Operating Temperature Range | -65°C to 150°C |
| Thermal Shock (IPC-TM-650 2.6.7.1, Class 3) | -65°C to 125°C |
| Thermal Shock (1000 cycles at 125 microns) | -40°C to 125°C |
| Glass Transition Temperature (DSC) | -40°C |
| Elongation | >100% |
| Shore Hardness (A / D) | 55 / 12 |
| Dielectric Withstand Voltage (MIL-I-46058C) | >1500V |
| Surface Insulation Resistance (IPC J-STD-004) | 10.0 log10 Ohms |
| Flammability (UL-94) | TBD |
| Dielectric Constant (1MHz, 22°C, ASTM D150-18) | 5.48 |
| Dissipation Factor (1MHz, 22°C, ASTM D150-18) | 0.073 |
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Techniq Vietnam provides end-to-end materials and process solutions, integrating world-class technologies in adhesives, soldering, and thermal management.
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