VCI film is a new generation of innovative high-tech products based on the combination of polymer materials and the development of VCI VCI technology.
After using the film to package and seal the rust-proof articles, the VCI contained in the film begins to sublime and volatilize the rust-proof gas factor, diffuse and penetrate to the surface of the rust-proof article and adsorb on it, forming a dense protective film layer with a single molecule thickness to isolate Various factors that induce rust contact with the surface of the object to be rusted, thereby effectively preventing the occurrence of rust.
As one of the anti-rust packaging materials developed today, the vapor phase anti-corrosion film is relatively simple to operate and has good performance, transparency, and beauty.
With the development of society, the VCI vapor phase anti-corrosion film has sustainable development, and the application industry is more and more extensive. So how to choose VCI vapor phase anti-corrosion film by looking at the appearance when purchasing?
An excellent VCI anti-corrosion film must have a beautiful appearance, just like a beautiful love story, which often starts with the value of the face. VCI vapor phase anti-rust film has a soft appearance and good flexibility.
If the VCI film you choose changes color or becomes brittle after standing for a period of time, it can basically be judged to be a poor-quality VCI vapor phase anti-corrosion film.
The high-quality VCI vapor phase anti-rust film uses pure virgin polyethylene particles in the production process and is prepared through a special process combined with VCI technology.
The appearance of the finished VCI vapor phase anti-corrosion film should be uniform in thickness, light transmittance slightly lower than ordinary PE film, smooth and grainy as a whole, and excellent tensile properties.
However, inferior VCI vapor phase anti-corrosion films are mostly prepared from recycled polyethylene particles and cheap and inferior VCI raw materials in order to facilitate the control of production costs.
As a result, there are many unfavorable factors on the surface of the VCI vapor phase anti-rust film. For example many crystal points, many wrinkles, obvious water lines, uneven film thickness, wrinkles, extremely poor transparency, and greatly reduced stretchability and heat-sealing performance, etc. However, there is almost no high-quality VCI vapor phase anti-corrosion film.
Before choosing a VCI anti-rust film, you need to understand the advantages and application fields of VCI anti-rust film. Choosing an inferior VCI vapor phase anti-rust film will not help the metal’s anti-corrosion protection. Instead, it will pollute the metal because of the poisonous gas contained.