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How to tear protective film for aluminium Jun 04, 2018

How to tear protective film for aluminium?

Since the advent of aluminium panels in the late 1980s and early 1990s, they have rapidly been affected by their economy, diversity of alternative colors, convenient construction methods, excellent processing performance, excellent fire resistance and noble quality. People's favor. Aluminum plates have played a greater role in building exterior walls, curtain wall panels, renovation and refurbishment of old buildings, indoor wall and ceiling decoration, advertising signs, display stands, and dust purification projects. However, many people have found that over time, The protective film on the aluminium plate is difficult to tear, so how to tear aluminium protective film?

The side of the protective film covered on the surface of the aluminium-plastic panel that is in contact with the aluminium-plastic panel is coated with a layer of glue and has a certain viscosity. Under normal conditions, the protective film is easier to tear off. If the protective film on the surface of the aluminium plate does not tear well, there is a possibility that the aluminium-plastic composite plate is stored for a long time and there is no care. When the aluminium-plastic composite plate is stored at a high temperature, the coating layer of the protective film will be in a semi-"melted" state. The adhesion to the surface of the aluminium-plastic panel is increased, resulting in difficulty in tearing. So for these situations, how to tear aluminium protective film?

If the aluminum plate is not used for a long time, Delta recommends that you do not use alcohol and other cleaners, but rather be patient and slowly tear it by hand. The speed of tearing is slow, and the tearing direction is as much as about 90° to the board surface, so that the tackiness of the protective film does not decrease. Of course, you can also use a sharp knife to draw some parallel marks on the protective film. The width of the parallel line is about 10cm, but you must master the strength. Do not draw the protective film after signing. Otherwise, it will hurt the aluminium-plastic plate. First test on the remaining aluminium-plastic board. However, if you are not good at it, try not to do so, otherwise it will not be worthwhile to join the aluminium plate itself.

However, if the protective film's gluing layer is in a semi-"melted" state, the above method will not be applicable. You can try to blow the surface with a blow. Pay attention to the moderate temperature, not too high, the specific temperature test , And then slowly tearing, Hua Li Bao Co., Ltd. reminds you that it is best to add a layer of cloth or paper on the aluminum-plastic plate protective film. If the protective film is peeled off, there may be some glue left on the board surface, which can be wiped with kerosene or alcohol.

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