The super-hydrophobic coating has been tested on the PCB circuit board of Huawei’s 5G base station. It has undergone three rounds of tests before and after, and its performance is significantly superior to that of 3M’s conformal paint.
Comparison Items |
Our Superhydrophobic Coating |
3M Conformal Paint |
Thickness |
~20µm |
~40µm |
Contact Angle |
160° |
80° |
Wettability (water) |
Completely non-wetting |
Semi-immersion |
Wet and Dry Cycle |
No change in contact angle after 1000 times |
After 100 times, the contact angle becomes 30° |
Salt Spray Performance |
1000 h |
500h |
Adhesion Level |
0 level |
0 |
Anti-short Circuit Time (Accelerated Test in a Salt Spray Chamber) |
1500h |
1000h |
Based on the comparison above, this superhydrophobic coating clearly outperforms 3M’s conformal coating in various performance metrics, including:
1. Thinner coating thickness – The superhydrophobic coating only requires 20-50 μm, compared to 40-120 μm for the traditional conformal coating.
2. Higher hydrophobicity – The superhydrophobic coating has a contact angle of 160°, while the 3M coating is only 80°, indicating much stronger water repellency.
3. Superior durability – After 1000 wet-dry cycles, the superhydrophobic coating maintained its contact angle, whereas the 3M coating dropped to 30° after just 100 cycles.
4. Enhanced anti-corrosion and anti-short circuit performance – The superhydrophobic coating achieved 1000 hours of salt spray resistance and 1500 hours of anti-short circuit time, outperforming the 3M coating’s 500 hours and 1000 hours respectively.
These significant advantages make the superhydrophobic coating an ideal protective solution for the electronics industry. Its combination of thin profile, extreme water repellency, and outstanding durability and protective capabilities make it a superior alternative to traditional conformal coatings.
Excellent heat dissipation
The thickness of conventional conformal paint is 40 – 120µm, but our super-hydrophobic coating only needs 20 – 50µm.
Resin Type |
Acrylic Resin |
Epoxy Resin |
Silicone Resin |
Polyurethane Resin |
p-xylene |
Our Superhydrophobic Materials |
Thermal Conductivity (W/mk) |
0.2 – 0.8 |
0.2 – 1 |
0.8 – 1.2 |
0.35 – 1.1 |
0.2 – 0.5 |
3.3 |
Thermal Resistance (10⁻⁴m²K/W) |
1 – 4 |
0.8 – 4 |
0.6 – 1 |
0.7 – 2.2 |
1.6 – 4 |
0.1 |
The data comparison indicates that our superhydrophobic material has an impressive thermal conductivity of 3.3 W/mK, which is significantly higher than common resin-based coatings. Additionally, its thermal resistance is only 0.1 x 10⁻⁴m²K/W, far superior to other materials.
This means that, compared to traditional coatings, our superhydrophobic coating can more effectively aid in heat dissipation for electronic devices, thereby enhancing overall thermal performance. This is particularly crucial for high-power electronic products.
In summary, with its excellent thermal conduction properties, our superhydrophobic coating can provide superior heat dissipation for electronic products, making it an ideal protective solution.
China CNAS has tested this product, and all harmful substances do not exceed the standard.
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