What are the differences between magnetron sputtering coating and ordinary coating?

Magnetron sputtering is A physical vapor deposition (PVD) technology. In a vacuum environment, electric and magnetic fields are used to confine plasma. High-energy ions bombard the target material, causing the target atoms to sputter and deposit uniformly on the surface of the substrate to form a dense film. The differences from ordinary coating: ① Film layer density: The magnetron sputtering film layer is dense and uniform, with strong adhesion and is not easy to fall off; The film layer soaked in ordinary liquid medicine is loose and prone to wear. ② Reflectance: Magnetron sputtering ≤0.5%, chemical immersion approximately 3%, electron beam evaporation approximately 2%; ③ Durability: Magnetron sputtering inorganic molecular deposition ensures a long-lasting anti-reflective effect. The ordinary coating decays significantly with the usage time. ④ Cost: Magnetron sputtering equipment is expensive, the process is complex, and the cost is even higher. Woowhead Guanfudun adopts vacuum magnetron sputtering AR· anti-glare coating, with a reflectivity of ≤0.5%, and the coating layer is long-lasting and stable. The measured light transmittance by SGS is 96.5%.