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Ultra-thin, transparent nanocoating (80–150 nm thickness) that preserves solderability and component legibility.
Conformal hydrophobic barrier with contact angle >110° against water, sweat, and light condensation.
Room-temperature curing; no thermal stress on sensitive components or substrates.
Halogen-free, solvent-based formulation compliant with IPC-CC-830B Class A requirements.
Non-conductive (surface resistivity >1×10¹² Ω/sq) and dielectric-stable up to 100 V/µm.
Consumer electronics: smartphones, wearables, TWS earbuds, and fitness trackers.
Automotive ECUs exposed to humidity and under-hood condensation (non-engine-bay use).
Industrial IoT sensors deployed in humid, non-submerged indoor environments.
Medical handheld devices requiring IPX4-level splash resistance without biocompatibility claims.
Smart home controllers and battery-powered gateways operating in residential indoor conditions.
| Chemical Type | Fluorinated siloxane hybrid polymer |
| Product Form | Clear liquid (ready-to-use, non-dilution required) |
| Appearance | Colorless, low-viscosity solution; no sediment or haze |
| Primary Applications | Nano-scale conformal protection for populated PCBAs (SMT & through-hole compatible) |
| Key Features | Hydrophobicity, transparency, non-yellowing, rework-friendly (solvent-removable) |
| Benefits | No masking needed; full coverage of fine-pitch components; minimal weight/volume increase |
| Regulatory Compliance | RoHS 2015/863, REACH SVHC-free, IPC-CC-830B Class A certified |
| VOC Content | <150 g/L (per EPA Method 24) |
| Common Compatible Systems | Suitability |
| Selective spray coating systems (e.g., Asymtek X560, Nordson ExactaCoat) | Highly Recommended – Optimized nozzle compatibility and uniform film control |
| Ultrasonic misting equipment (e.g., Sono-Tek Ultrasonic Nozzles) | Recommended – Requires flow rate calibration; validated for sub-200 µm droplet dispersion |
| Manual aerosol applicators (propellant-based, non-CFC) | Suitable – For R&D prototyping and low-volume touch-up; requires operator training |
| Inline dip coating lines with solvent recovery | Suitable – With pre-rinse and controlled withdrawal speed to prevent pooling |
Q1: What is the CAS Registry Number for PCBA Nano Waterproof Coating?
A: The primary active ingredient has CAS No. 177694-73-4 (fluoroalkylsilane derivative); full formulation is proprietary and assigned internal batch-controlled material ID per ISO 9001 traceability.
Q2: What is the typical consumption rate per square meter of PCB surface area?
A: Average usage is 8–12 mL/m² for single-pass selective spray application; actual volume depends on board complexity, standoff height, and target film thickness (target: 100 ±20 nm).
Q3: How does this coating differ from traditional acrylic or silicone conformal coatings?
A: Unlike acrylics (thick films, moderate moisture resistance) or silicones (high permeability, difficult rework), this nano-coating provides molecular-level hydrophobicity at sub-micron thickness, enabling full functional access without compromising protection or serviceability.
Q4: Is there risk of chemical migration or leaching into adjacent components or connectors after curing?
A: No measurable migration occurs post-cure (72 hrs ambient); crosslinked fluorosiloxane network shows negligible extractables (<0.02% w/w) in IEC 60068-2-66 acetic acid vapor testing.
Q5: Does the product meet UL 746E or IPC-J-STD-020 standards for moisture sensitivity level (MSL) mitigation?
A: It is not rated for MSL enhancement per IPC-J-STD-020; however, it significantly reduces moisture ingress during storage/handling (validated per JESD22-A100C 85°C/85%RH 168h), supporting extended floor life for MSL 3/4 assemblies.
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E-mail: wangxingqiang@ericwchem.com
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Building A1, Jiete Industrial Park, Huangpu District, Guangzhou City, Guangdong Province, China
