According to the production materials of anti-fog film, they are mainly divided into three types:
1.PVC- resistance wire anti-fog film, material: PVC + resistance wire. The characteristics of this film: in the production will add lead salt stabilizer, toxic, love heat and soft, hard power failure, brittle, easy to age, the whole anti-fog film for a heating wire whole series, very fine, once a point of fracture, the whole anti-fog film all scrapped. Advantages: good ductility and electrical insulation, convenient materials, cheap price. The overall service life of the membrane is 4-5 years.
2. Pet-resistance wire anti-fog film, material: polyester + resistance wire. This film is characterized by: PET film surface smooth, non-toxic environmental protection, heat and abrasion resistance, corrosion resistance, anti - aging. The overall service life of the membrane is 8-10 years. At present, the quality of PET anti-fog film on the market is the best, Shanghai first step anti-fog film, followed by Shanghai tianli anti-fog film.



3. Pet-carbon fiber anti-fog film, material: polyester + carbon fiber. This film is characterized by cumbersome production process, long time limit and high cost. High toughness, tensile resistance, long service life (more than 20 years), surface heating, high temperature resistance, carry oxidation. Multiple lines are connected in parallel, even if a certain point is broken, it will not affect the anti-fog performance of the whole film, the temperature can be adjusted properly within a certain range, not easy to be deformed and broken, and it can be reused. Because of the film's stable performance and high service life, is now a senior hotel decoration, generally choose this kind of anti-fog film. But this carbon fiber anti-fog film, because of the complexity of material selection and processing, so the cost of carbon fiber anti-fog film is relatively high.