Incure Ultra-Illumina 3552 is a high-performance, UV-curable conformal coating specifically designed for printed circuit board assemblies (PCBA). This advanced formulation features low viscosity, excellent flow characteristics, and outstanding adhesion, forming a resilient and glossy protective layer ideal for high-reliability electronic applications in harsh environments.
Features
- UV-Curable, 100% Solids Composition
- Free of solvents and VOCs, 3552 cures rapidly under UV light, forming a tack-free, high-gloss finish that resists moisture, dust, and chemicals.
- Fluorescing Clear Finish for Easy Inspection
- The transparent and fluorescing finish enables visual inspection under UV light to ensure complete coverage.
- Excellent Environmental and Mechanical Resistance
- With tensile strength up to 5,700 psi, hardness rated at Shore D75–D85, and elongation of 15%, the coating offers high durability, impact resistance, and flexibility across a wide temperature range.
- Dual-Cure Mechanism
- Shaded areas under components can be post-cured using a secondary thermal process, ensuring complete curing even in low-light zones.
- Complies with Global Standards
- Certified under UL 746C, rated 94V-0 flame class, and RoHS/halogen-free compliant, suitable for both indoor and outdoor electronic applications.
Specifications
| Property | Value |
| Appearance | Single Component, Clear Fluorescing |
| Viscosity | 300–500 cP (at 25°C) |
| Shore Hardness | D75 – D85 (ASTM D2240) |
| Tensile Strength | 4,400 – 5,700 psi (ASTM D638) |
| Elongation at Break | 15% |
| Linear Shrinkage/Expansion | 0.20% (ASTM 570) |
| Water Absorption (24h) | 0.50% (ASTM D2566) |
| Thermal Range | -55°C to 155°C |
| Young’s Modulus | 693 MPa (ASTM 638) |
| Flash Point | > 93°C |
| CTE (ppm/°C) | 101 (ASTM D696) |
| Shelf Life | 1 year (unopened, stored at 2°C–20°C) |
Curing Options
- UV Full Cure: Compatible with various UV lamp systems including F200™ and L9000™ LED (365 nm), achieving cure speeds of up to 1,600 mW/cm².
- Secondary Heat Cure: For shadowed regions:
- 125°C for 30 minutes
- 110°C for 60 minutes
- 95°C for 120 minutes
Application Areas
- Conformal protection for PCBs in automotive, industrial, and consumer electronics
- Coating for RF modules, IoT devices, and telecom hardware
- Ideal for high-volume spray systems – does not clog valves
- Suitable for automated production lines requiring rapid throughput
Compliance and Certifications
- UL 746C Certified
- Flame Class 94V-0
- RoHS & Halogen-Free
- Suitable for indoor/outdoor use up to 120°C
Additional Notes
- Not applicable for EtO or Gamma sterilization
- Use in a well-ventilated area and avoid exposure to visible light during handling
- All bonding surfaces should be free from dust, grease, and mold release agents
Contact infomation:
LECI Co., Ltd
R-1901, Saigon Trade Center Bld, 37 Ton Duc Thang Str., Ben Nghe W., Dist. 1, HCM City 70000, VN.
Long Bien, Ha Noi, VN.
Phone: (+84) 901442689 (WhatsApp)
Hotline: 02822202988
Website: lecilaser.com
