How can the quality of the protective film be detected?
Mar 11, 2020
Protective film is very important for some products. Its quality will directly affect its function. Therefore, when choosing a protective film, you must also recognize its quality. It is best to be safe, and it is best to test the quality of the UV curing UV lamp protective film to ensure that everything is correct. The editor is about to describe this approach.
Because of the special nature of the protective film structure, the inspection of the protective film quality of the high-pressure spray gun can begin with the inspection of the thickness of the PVC mask, because it is related to the impact of the protective film.
Under normal circumstances, the thickness of this layer is best to be around 9 wires to ensure the protection of the product. This can be accurately detected by using a micrometer.
In addition, on the one hand, the toughness of the protective film needs to be tested. The simplest way is to first pull and tear from the length of the mask, and then pull it from the width of the mask. This can obviously determine whether the toughness of the protective film product meets the standard.
Therefore, good toughness, elasticity and elongation must also be better, and the impact resistance is strong; while poor toughness, brittleness and easy to tear, the impact resistance is poor, you must pay attention to when choosing a protective film.
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