HIGHCOOL HCWF-KA73 AUTOMOTIVE WINDOW FILM MAGNETRON SPUTTERING METAL THERMAL INSULATION PET 4mil

Magnetron sputtering thermal insulation film is a high-performance automotive window film manufactured using magnetron sputtering technology. Its main features are high thermal insulation performance, high light transmittance, UV protection, durability and low internal reflection. Magnetron sputtering technology is a process that uses the combined action of magnetic field and electric field in a vacuum environment to sputter atoms or molecules on the surface of the metal target and deposit them on a polyester substrate. The produced window film has the following differentiated characteristics:

1. **High thermal insulation performance**: Magnetron sputtering window film can effectively reflect infrared heat energy in sunlight, thereby reducing the temperature inside the car and improving riding comfort.

2. **High light transmittance**: Compared with dyed film, magnetron sputtering window film can provide a higher visible light transmittance while ensuring good thermal insulation effect, ensuring clear vision for the driver.

3. **UV protection**: Magnetron sputtering window film can block more than 99% of ultraviolet rays, protecting the skin and eyes of people in the car from ultraviolet damage, and also protecting the car interior from aging and fading caused by ultraviolet rays.

4. **Durability**: The metal layer of magnetron sputtering window film is very uniform and dense, so it has good wear resistance and chemical corrosion resistance and a long service life.

5. **No fading**: Since magnetron sputtering window film does not rely on dyes to provide color, it will not fade over time like dyed film.

6. **Low internal reflection**: The metal layer of magnetron sputtering window film is evenly distributed, which can effectively reduce internal reflection and improve driving safety.

Compared with other types of window films, the main differentiated advantage of magnetron sputtering thermal insulation film is its superior performance and durability. For example, compared with traditional dyed film or vacuum evaporation film, magnetron sputtering film provides better insulation and clearer visual effects. Dyed film mainly insulates by absorbing light, is easy to fade and has a worse insulation effect than magnetron sputtering film. Although vacuum evaporation film can also reflect near-infrared rays, in order to achieve higher infrared reflectivity, the thickness of the metal layer needs to be increased, which will reduce the visible light transmittance and increase the visible light reflectivity, which may cause light pollution. Magnetron sputtering film can maintain low visible light reflection and high visible light transmittance while ensuring high infrared blocking ability, providing better heat insulation effect and visual experience.

In addition, magnetron sputtering window film can choose a wider range of metals during the production process, such as nickel, silver, titanium, gold, etc., and form a more uniform and durable film through the superposition of multiple layers of metals or metal compounds, while vacuum evaporation can usually only choose metals with lower melting points, such as aluminum, nickel, chromium, etc., which limits its application in automotive window films.

In general, magnetron sputtering window film is usually positioned as a high-end product in the market due to its excellent performance and durability. Although the cost is higher, it provides better cost performance and user experience.