Tungsten trioxide powder may be used to prepare a heat-insulating energy-saving film. The prepared environmentally friendly film is not only a thermal insulation film, but also has the advantage of an explosion-proof film. So, how to identify the advantages and disadvantages of an explosion-proof heat insulation film? Here are a few steps to tell you how to do:
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Step One: Look at the color. High-quality explosion-proof films are not easy to fade. Therefore, when fading occurs in a short time, the film can be judged to be a film with poor quality.
Step Two: Smell. If the film has strong odor, it may have high content of benzene, and such film is a poor quality film. The explosion-proof thermal insulation film of high quality has little or no odor.
Step Three: Touch. The thickness is suitable. And it feels smooth without any scratches.
Step Four: Inquiry. From the indicators in the salesperson's description, it is possible to distinguish whether the explosion-proof film has high quality or low quality.
