Aluminum sheet protective film requires a suitable environment for long-term storage to prevent environmental factors from affecting its performance. The storage space should be kept dry and away from humid areas to prevent moisture from penetrating the film, which could lead to the adhesive layer becoming ineffective or mold forming. Also, control the ambient temperature to avoid high temperatures in the sun or low temperatures. High temperatures can soften the adhesive layer and cause adhesion, while low temperatures can make the film brittle, affecting subsequent use. Furthermore, the storage environment should be kept clean to minimize dust accumulation, preventing it from adhering to the surface of the protective film and potentially contaminating the aluminum sheet during subsequent use.

Proper stacking method can prevent the protective film from being damaged during storage. Protective film rolls or finished products should be stacked according to specifications. Avoid mixing protective films of different thicknesses and materials. This prevents heavy pressure from causing deformation of thin protective films or damage to the adhesive layer. When stacking, control the height to prevent excessive weight from overburdening the lower layers, causing wrinkles or adhesion. For roll-type protective film, ensure the roll axis is horizontal to avoid tilted stacking, which could cause the roll to roll or edge wear, compromising the integrity of the film.

During long-term storage, aluminum sheet protective film should be properly isolated to minimize external interference. Dustproof cloth or transparent plastic film can be used to further protect the surface from dust and moisture. Exposed edges should be gently wrapped with sealing tape to prevent aging and loss of adhesion due to long-term exposure. If chemicals are present in the storage environment, the protective film must be strictly isolated from the chemicals to prevent chemical volatiles from corroding the film material and degrading its performance.

During long-term storage, the condition of the protective film should be regularly inspected and any problems addressed promptly. Periodically inspect the protective film for signs of sticking, deformation, mold, or edge aging. If minor adhesion is detected, do not forcefully remove it. Separate it slowly at room temperature to avoid damaging the film. If a small amount of dust is detected on the surface of the film, gently wipe it with a clean, soft cloth to keep the surface clean. If the protective film is severely aged, damaged, or exhibits abnormal performance, remove it immediately to prevent it from affecting the protective effect of the aluminum plate during subsequent use.