ABchimie836UV Soft Dual Cure Conformal Coating
Harmonization Code : 3208.20.90 | Paints and varnishes that are dispersed or dissolved in a non aqueous medium
Main features
- One Component
- Dual Cure (UV and Humidity)
- Excellent Moisture Resistance
Product Description
ABChimie® 836UV is a transparent urethane acrylate conformal coating designed to provide mechanical and environmental protection to electronic components and assemblies. It features dual-cure technology (UV and humidity), which allows for the complete crosslinking through the entire PCB, even in areas that may be covered by shadow. The coating also allows the PCB to be soldered through without producing toxic gases.
ABChimie 836UV exhibits excellent moisture resistance in humid environments (Log Ohm> 10.5, IPC CC 830, SIR per IPC TM 650 2.6.3.4), which makes it ideal for conformal coating applications. The ideal application method is selective coating. One of its advantages is that it cures rapidly under UV light, has zero VOCs, and can be applied to high-speed manufacturing processes to increase productivity. ABChimmie 836UV is in full compliance with REACH and RoHS regulations, and also has UL94 V0 and UL746E (QMJU2-E308681) certifications.
Product Key Features
- Transparent
- Dual Cure (UV + Humidity)
- Thin film thickness (30 - 130 microns)
- Excellent adhesion to PCBs
- Resists mold growtn
- Fast UV cure for high volume production
- Solvent-free formulation (no VOCs)
- Spray and Selective Coating (ideal) applications
- UL94 V0 and UL746e
Applications - Conformal coating for Printed circuit assemblies.
- Protection for plastic casings or covers
ABC-836UV
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TDS, SDS & Technical Documents
- ABchimie836UV and 836UV LED TDS
- ABchimie836UV SDS
Technical Specifications
General Properties
Electrical Properties
Thermal Properties
Physical Properties
Additional Information
What are typical applications for ABChimie® 836 UV?
ABChimie® 836 UV is a UV-curable conformal coating designed to protect printed circuit board assemblies (PCBs) and components in demanding manufacturing environments, including:
- Automotive electronics (e.g., control units, sensors)
- Industrial automation (e.g., motor drives, PLCs)
- Consumer electronics (e.g., smart devices, wearables)
- Other high-reliability electronic assemblies
Should I control the application environment?
ABChimie® 836 UV should be applied at a minimum temperature of 16°C and a minimum relative humidity of 50%. Before applying, the printed circuit board must be clean, dry, and free of moisture. A stage in an oven at 80°C for 4 hours is usually sufficient.
Learn More About ABChimie® 836 UV
ABChimie® 836 UV is a proven solution for engineers seeking fast, reliable protection of electronic assemblies in demanding manufacturing environments. This UV-curable conformal coating delivers rapid curing, excellent electrical insulation, and strong environmental resistance—ideal for applications in automotive electronics, industrial automation, consumer electronics, and other high-reliability assemblies.
Main Advantages of ABChimie 836 UV
ABChimie® 836 UV cures through a dual mechanism: UV exposure initiates rapid surface curing, while moisture ensures complete curing throughout the coating. This combination provides a uniform, durable protective layer with optimal adhesion and performance.
ABChimie® 836 UV provides excellent mechanical protection. This hardness helps resist scratches, abrasion, and minor impacts, ensuring long-term stability of encapsulated components.
ABChimie® 836 UV can be soldered through without generating highly toxic gases, ensuring safe processing while maintaining coating integrity.
ABChimie® 836 UV provides excellent adhesion even in harsh environments, forming a durable protective layer that resists moisture, chemicals, and temperature variations.
How to Choose a Conformal Coating
Selecting the most suitable resin requires consideration of key factors:
- ✔ Norms & Compliance
- ✔ Environment / Exposure Conditions
- ✔ Repairability
- ✔ Electrical Performance
- ✔ Application Method
- ✔ Operating Temperature
Compliance You Can Trust ✅
ABChimie® 836 UV meets stringent industry standards, ensuring reliability and regulatory adherence for OEMs and contract manufacturers:
- REACH Compliant
- RoHS 2011/65/EU Compliant
UL94 V0
UL746E (QMJU2-E308681)
Curing Tip: ABChimie 836 UV cures with UV rays. Use the appropriate equipment and recommended settings to achieve the best properties.
How to Optimise for the Best Results
PCBs must be completely dry and thoroughly clean, with no dust, grease, wax, or other contaminants. Coating adhesion depends directly on the quality of the substrate. All flux residues must be fully removed, as they can become corrosive and lead to circuit malfunctions.
For cleaning equipment or removing uncured ABChimie836UV or UV LED varnish, we recommend using SND or ABclean solvent.
It is essential to use the correct UV equipment (UV or LED) and follow the recommended settings to achieve the optimal properties of the cured conformal coating. ABChimie836UV and UV LED cure through UV exposure, with moisture contributing to a secondary curing mechanism.
Curing Mechanism: UV light creates the first cure, and after 7 days, the moisture from the environment completes the curing process.
How does Moisture Cure Work?
During UV curing, exposure to UV light activates the photoinitiators in the conformal coating, triggering rapid polymerization of the resin. This results in an immediate surface cure and fast development of handling strength. UV curing provides precise, on-demand curing in exposed areas, enabling high-throughput processing while maintaining coating uniformity.
ABChimie836UV and ABChimie836UV LED use the same dual curing mechanism to ensure complete curing, including in shadowed or hard-to-reach areas. Initial curing is achieved by UV exposure, while a secondary moisture-activated cure completes the process at ambient temperature. For full curing in shaded areas, a minimum relative humidity of 50% is required for at least 7 days.
ABChimie 836 UV is also available in the LED lamp version, which cures with an LED lamp.
ABChimie 836 UV LED [Go to 836 UV LED Product Page↗]
- Conformal Coating
- Fluorescent under UV light
- Excellent adhesion to flexible substrates
- Dual curing with UV LED exposure and moisture curing
Best suited for: High-speed process using LED light for curing
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