nACo is a nanocomposite coating developed by PLATIT and other coating suppliers.
It is mainly composed of Al–Ti–Si (Aluminum–Titanium–Silicon), sometimes with a TiN adhesion layer.
Key Features of nACo:
| Property | Typical Value / Description |
|---|---|
| Hardness | ~39–41 GPa nano-hardness |
| Thickness | 1–4 µm |
| Max Working Temperature | Up to ~1200 °C (depending on the variant) |
| Friction / Adhesion | Strong adhesion to substrate, reduces material sticking, improves wear resistance |
“nACo Black Coating" usually refers to the dark gray/black appearance version of the nACo nanocomposite. The chemistry is the same, only the color varies slightly due to composition or process.
“Blue Nano" is not a standardized coating type but rather a common marketing name used by us.
In many cases, it is also based on AlTiSiN or similar high-hardness nanocomposite ceramic coatings, offering high hardness, heat resistance, and long tool life.
The blue/violet appearance is often emphasized as a selling point.
Quality varies: some Blue Nano coatings perform similarly to nACo, while others may only have the blue look without the same level of performance.
| Feature | nACo (Black / Standard) | Blue Nano (Common Marketing Term) |
|---|---|---|
| Composition | Defined Al–Ti–Si nanocomposite (AlTiSiN family) | Usually AlTiSiN or similar, but not standardized |
| Color | Dark gray / black | Blue or blue-violet |
| Hardness & Heat Resistance | ~39–41 GPa, up to ~1200 °C | Claimed high hardness & heat resistance, but varies by supplier |
| Wear Resistance / Tool Life | Excellent, proven in hard materials and high-speed cutting | Claimed improved tool life, actual performance depends on quality |
| Friction / Anti-Sticking | Very good, reduces built-up edge | Similar claims, but performance varies |
| Consistency / Cost | Well-established, stable quality, higher cost | Quality inconsistent; some are close to nACo, others mostly cosmetic, usually lower cost |
nACo Black Coating: Premium, stable performance, ideal for demanding applications (high speed, high temperature, hard materials).
Blue Nano Coating: May offer good performance but quality is inconsistent. Sometimes comparable to nACo, but sometimes only “blue in color" without the same durability.
Recommendation:
For tough applications → Choose nACo.
For general machining or cost-sensitive jobs → Blue Nano may be sufficient.
