Permanent adhesive films are thin layers of material coated with a strong adhesive that bonds permanently to surfaces. These films are commonly used in various applications, including packaging, labeling, and crafting, due to their durability and resistance to environmental factors. The adhesive in these films is designed to create a long-lasting bond, making them ideal for projects that require a reliable hold. They can be applied to a variety of surfaces, such as paper, plastic, and metal, and are often used in industries like manufacturing and construction for their efficiency and effectiveness.