If the aluminum plate protective film cannot be removed or breaks, first identify the underlying cause. If the protective film is used for a long time or stored improperly, the adhesive layer may age and solidify, tightly adhering to the aluminum plate surface, making it difficult to remove. In low temperatures, the protective film becomes brittle and easily breaks when stretched. Additionally, if oil or impurities remain on the plate surface during application, or if the protective film is not provided with a peel-off mark at the edge, this can increase the difficulty of removal and may even cause it to break. Only after identifying the cause can you choose the most appropriate treatment method.

If peeling is difficult, gently soften the adhesive layer. Cover the protective film with a room-temperature towel and let it sit for a while. The ambient temperature will slowly activate the adhesive and reduce adhesion. If adhesion is severe, gently apply a neutral lubricant to the edges of the protective film and allow it to penetrate the adhesive layer. Once the lubricant is loose, gently pull and peel. Maintain even pressure during this procedure to avoid sudden force that may cause the protective film to break.

If the protective film breaks during peeling, clean the peeled area to prevent residual debris from affecting subsequent operations. For any remaining film fragments, gently pry the edges with a thin plastic card to find a new peeling point. Then, gently pull and peel using gentle peeling techniques. If the remaining fragment is small and clings to the panel, wipe the adhesive layer with a small amount of alcohol (make sure it is compatible with the aluminum panel). Once softened, gently wipe with a soft cloth to remove. Be careful not to use sharp tools to scratch the aluminum panel surface.

To avoid recurring issues with unremovable or broken films, take preventative measures. When choosing a protective film, prioritize products with a stable, age-resistant adhesive layer. Avoid inferior films where the adhesive easily solidifies and becomes difficult to remove. When applying the film, leave a 1-2 cm margin for easy removal. For protective films that are stored or used for an extended period, regularly check the adhesive layer. If any signs of aging are observed, replace it promptly to minimize subsequent removal difficulties.