What Is ABchimie 800UV LED Conformal Coating?
ABchimie 800UV LED Conformal Coating is a transparent, single-component, high-viscosity conformal coating based on urethane acrylate, designed to protect printed circuit boards subjected to harsh environments. It cures under a 395nm UV LED lamp, with a secondary moisture cure that finishes any shadowed areas the light cannot reach.
What Are the Key Features of ABchimie 800UV LED?
- Improved edge coverage compared with traditional conformal coatings
- High viscosity formulation that limits flow once applied
- Fluoresces under UV light, helping to verify coating coverage and thickness
- Operating temperature range of -50°C to +150°C
- Can be soldered through without producing highly toxic gases
- Resistant to mould growth, with excellent dielectric properties
- Fast UV LED cure, plus moisture cure for shadowed areas
- Low VOC and more space efficient than solvent-based coatings
What Is ABchimie 800UV LED Used For?
- Conformal coating of printed circuit board assemblies (PCBAs)
- Application by brush, spray or selective coating machine
- Protection of PCBAs operating in harsh environments
How Does ABchimie 800UV LED Cure?
A 395nm LED lamp cures this coating with a minimum dose of 3000 mJ/cm² and a minimum power of 500 mW/cm², measured at 100 microns thickness. Parts should have a 2-minute flash-off before curing. Any shadowed areas the LED light cannot reach are finished by a secondary moisture cure, carried out at ambient temperature and at least 50% relative humidity, over 7 days.
Why Choose ABchimie 800UV LED for PCBA Protection?
This coating suits production lines needing fast UV LED curing with reliable edge coverage, while its built-in fluorescent tracer makes coating thickness easy to verify during inspection. Its wide operating range, resistance to mould growth and UL94 V0 and UL746E approval support use on PCBAs destined for harsh operating environments.
Technical Specifications (Liquid Properties)
| Attribute | Detail |
|---|---|
| Appearance | Transparent yellow |
| Non-volatile content | >98% |
| Viscosity at 25°C | 500 to 1000 cSt |
| Recommended film thickness | 30 to 300 microns |
| Cure light source | 395nm LED lamp |
| Minimum cure dose | 3000 mJ/cm² UVA2 (at 100 microns) |
| Minimum cure power | 500 mW/cm² UVA2 (at 100 microns) |
| Shelf life | 12 months from manufacture |
Technical Specifications (Cured Coating Properties)
| Attribute | Detail |
|---|---|
| Appearance | Transparent |
| Adhesion (ISO 2409) | Class 0 (excellent) |
| Insulation resistance (NF EN 61086) | 10^12 ohms |
| Dielectric strength | 60 kV/mm |
| Comparative tracking index (DIN EN 60112) | >600 V |
| Glass transition temperature (Tg) | 40°C |
| CTE below Tg | 145 ppm/K |
| CTE above Tg | 210 ppm/K |
| Breakdown voltage (IPC TM 650 2.5.7.1) | >1500 V AC |
| Breakdown voltage (internal method) | >5000 V AC |
| Thermal shock (IPC TM 650 2.6.7.1) | -65°C to +125°C, 30 min dwell, 100 cycles |
| Service temperature range | -50°C to +150°C |
| Certifications | REACH and RoHS compliant; UL94 V0 and UL746E (file QMJU2-E308681) |
Storage and Packaging
| Attribute | Detail |
|---|---|
| Available sizes | 1 kg (01K), 5 kg (05K) |
| Storage temperature | 5°C to 30°C, opaque sealed container, away from heat and light |
| Transport excursion | Short excursions to 40°C are acceptable |
| Recommended cleanup solvents | SND or ABclean solvents only (aqueous solutions not recommended) |
