Problem 1: the adhesive between PE protective film and the protected product is not firm, and the phenomenon of falling off occurs in the process of transportation and use. The reason for this problem is just the opposite of the previous problem. The biggest possibility is that the viscosity of pressure-sensitive adhesive used in the production of protective film products is not enough, and the other possibility is that the pressure of the die press used by users is not enough. , or the profile surface is not clean, there is dust or paint, which affects the paste effect of sensitive adhesive! If this problem occurs, it is necessary to treat it according to the cause, change the sensitive adhesive to increase the pressure of the film, or pay attention to the effective cleaning of the profile surface when the film is applied to avoid such problems.

Problem 2: the protective film performs well in the middle after being used for a period of time, but the wings rise at both ends. The main reason for this phenomenon is that the tensile degree of the protective film is relatively large during the pasting process with the protected profile. After being pasted, in case of high temperature environment, there is unnecessary shrinkage. This problem mostly occurs in the products of customers in South China, so PE protective film is in production. Attention should be paid to the influence of environmental temperature difference on the use of products during the process, and unnecessary surface stretching should be avoided during the pasting process.

Problem 3: the most frequently reported problem by users is the degumming of the protective film products, which is most reflected in the profile protective film. When users tear the protective film off the profile surface after the installation and construction of the profile, the adhesive on the protective film does not follow the protective film, but remains on the profile products, which is the last thing users want to see, because it is very Trouble, it requires special personnel to scrape these glue off the profile, which is especially time-consuming and labor-intensive. There are many possibilities for this problem. The biggest possibility is that the pressure glue used for the protective film product does not meet the requirements, that is, it is too sticky, which causes the external tension of the PE protective film product to be greater than the internal stress when it is peeled off, and it remains on the profile. If the user has this problem, he can dip a little alcohol into a clean cloth and wipe the residual sensitive adhesive repeatedly until the sensitive adhesive is wiped clean. However, it should be noted that during the wiping, do not use too much force, otherwise it may affect the smoothness of profile products.

Problem 4: it is difficult to peel the protective film. When the profile product is installed and peeled, the protective film cannot be effectively peeled. There are two possibilities. One is that the sensitive adhesive used for the protective film product is not the special sensitive adhesive for the protective film. If so, the protective film will certainly have a very good effect when it is pasted, but it will be very difficult when it is peeled, which is also illegal. The most common problem of the protective film produced by the manufacturer of protective film products is that the material used for the parent tape of the protective film is too soft to bear the pulling force during peeling, and the fracture occurs during peeling, which is a headache for users.

Problem 5: Although PE protective film products can be effectively peeled off, there are still words of protective film on the surface of profiles. This problem often occurs on some low-level protective film products, because when the protective film is combined with the protected profiles, there is a combination of sunlight, water and other appropriate environment.