ST-Z221 Nano-electronic Self-cleaning Coating
Product Introduction
- The ST-Z221 Electronic Nano Coating is a colorless, transparent, odorless liquid with ultra-low viscosity and exceptional leveling properties. Through simple processes like immersion or spraying, and after ambient drying or rapid baking, it forms a waterproof, moisture-resistant, insulating, and corrosion-resistant coating on electronic PCBA circuit boards, various components, and ITO surfaces. This coating is completely transparent, does not interfere with electronic signals or heat dissipation, and is non-flammable, non-explosive, safe, and environmentally friendly.
This product will be widely used in fields such as consumer electronics/smart wearables, communication terminals, security/fire protection, military communications, instrumentation, sensing/IC chips/semiconductors, new energy, air/wastewater treatment, intelligent robots, drones, medical, maritime, and aviation.
Product features:
1)High hydrophobicity: Low surface energy (＜10 dynes), enabling coverage of narrow gaps. Ultra-thin: The coating is as thin as 2-3μm, colorless and transparent.
2)Excellent durability: UV-resistant, withstands extreme temperature fluctuations, and provides waterproof, rust-proof, and corrosion-resistant properties (including salt spray resistance, oxidation resistance, and acid/alkali resistance).
3)High insulation performance: features high impedance, high density, and minimal porosity. Signal integrity and thermal management: the coating is ultra-thin with excellent thermal conductivity.
4)Outstanding adhesion: Suitable for various substrates including metal, glass, ceramic, polymer, composite materials, and laminates.
5)Simplified application process: The quick-drying formula supports multiple coating methods including immersion, spot application, spray application, and spray coating. Superior repairability: Direct welding is permitted for repairs, with removable coatings that can be easily recoated.
6)Environmentally friendly and non-toxic: Uses eco-friendly electronic fluorine liquid with minimal odor, posing no harm to human health and being environmentally benign.
use ：
(1)Ensure the workpiece surface is dry, clean, dust-free, and oil-free.
(2)The process can be used by immersion, spray coating, spray painting and so on.
(3)Soaking Method: Prepare a clean and dry container (plastic or glass, etc.). Add an appropriate amount of nano liquid to the container, ensuring the depth covers the highest point of the circuit board and is at least 5mm above it. Soak the circuit board in the liquid for 1-2 seconds (control the lifting speed), then remove it and air-dry for approximately 2 minutes.
(4) It can be cured at room temperature or under heating: At room temperature: generally 2-10 minutes for surface drying, 12-24 hours for complete drying. In batch production, the assembly step can be initiated immediately after surface drying.
performance index ：
| project | eigen-value |
| surface | Colorless and transparent liquid |
| density | (1.812±0.05)g/cm3 |
| surface drying time | Room temperature: 2-5 minutes |
| Practical time | Room temperature: 12 hours; 50–60°C: 0.5 hours |
| dissolvant | Fluoride solution |
| boiling point of solvent | No flash point at 118°C (closed-cup method) |
| intermiscibility | Insoluble in solvents such as heptane, toluene, and water |