Product Introduction
SEAYU® UV3342LV-80 is a UV-curable, acrylated polyurethane conformal coating with excellent chemical resistance, thermal shock resistance, and moisture resistance. It is ideal for protecting electronic assemblies from environmental damage while ensuring easy inspection via its bright blue fluorescence.
Features of SEAYU® UV3342LV-80:
- UV light cure with secondary moisture cure mechanism.
- Bright blue fluorescing for easy coating inspection.
- Excellent adhesion and solvent-free formulation.
- Chemical, moisture, and thermal shock resistance.
- Low odor and halogen-free for safer applications.
Applications of SEAYU® UV3342LV-80:
- Conformal coating for sensitive electronic components.
- Protection against environmental damage in harsh conditions.
- Ideal for applications requiring UV inspection for coating coverage.
About Prostech
Prostech Philippines is a one-stop solution provider for specialty materials and equipment across electronics manufacturing, from PCBA to final assembly. Our core material and equipment solutions include:
- PCB Assembly Materials
- Cleaning & Degreaser
- Circuit Board Protection
- Thermal Management Solutions
- EMI Shielding
- General Assembly Adhesives
- Elastomeric Materials
- Process Equipment: Potting & Coating Systems, UV/ Heat Curing, Plasma Treatment, Tape placement automation, and cleaning machines
Technical Added Value to customer
Prostech offers customized material and process equipment solutions with engineering support throughout R&D, production process optimization, and performance validation. Our in-house lab located in Alabang, Muntinlupa is equipped to conduct electronics material testing, application simulation, and adhesive validation, helping customers reduce the need for onsite trials and accelerate implementation.
International Supply Chain Advantage
Regional warehouse hubs across Vietnam, Singapore, Malaysia, and the Philippines ensure cross-border reliable supply. In Philippines PEZA-bonded warehouse located at Lima Industrial Park, Batangas enables Prostech to provide responsive, demand-based delivery and significantly shortens standard lead time for Philippines customers.
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TECHNICAL DATA
| Typical Properties of Uncured Material | |
| Chemical Class | Acrylated Urethane |
| Appearance | Translucent Liquid |
Density (g/cm³) | 1.05 |
| Viscosity (mPa.s) GB/T2794-2013 | 60-120 |
| Recommended Coating Thickness（μm） | 25-75 |
TECHNICAL CURING PERFORMANCE
Recommended UV Cure Condition(s) High pressure mercury vapor lamp:Intensity(50mW/cm²) | 30 |
Recommended Moisture Cure Condition (h) 70% RH@ 25°C | 72 |
TYPICAL PROPERTIES OF CURED MATERIALS
Hardness(A) GB/T2411-2008 | 70-80 |
Adhesion GB/T 9286-1998 | 5B |
| Tensile at Break (MPa) | 1.6 |
Elongation at Break (%) GB/T1040-2006 | 52 |
Modulus of Elasticity (MPa) at 25℃,DMA | 732 |
Glass Transition Temperature (˚C) TMA | 6 |
Coefficient of Thermal Expansion（ppm/˚C TMA | 77/Below Tg 220/Above Tg |
Water absorption (% @25℃, 24h) ISO 62:2008 | 0.32 |
Dielectric Withstand Voltage (V) IPC-TM-650 2.5.7.1:2000 | >1500 |
| Dielectric Constant (1 MHz) | 3.04 |
| Dissipation Factor (1 MHz) | 0.012 |
| Volume Resistivity (ohm-cm) | 1.8×10^16 |
| Surface Resistivity (ohm) | 1.0×10^16 |
Comparative tracking index (CTI) GB/T 4207-2012 | 600 |
Flammability | UL 94V-0 |
Recommended Operating Temperature (℃) | -40 ~130 |
Moisture and Insulation Resistance IPC-TM-650 2.6.3.4A (65℃/90%RH) | Pass |
Fungus Resistance IPC-TM-650 2.6.1.1 | Pass |
Temperature Shock Test -40 to +110℃, 500 cycles | Pass |
Salt Spray Test GB/T 1771-2007(168H) | Pass |
