In daily life, sealing film and cling wrap are often confused, but they have distinct differences in design and purpose.

Sealing film is a specialized soft adhesive material designed for automatic sealing and anti-counterfeiting properties. It is suitable for packaging cosmetics, pharmaceuticals, or food, effectively preventing evaporation and contamination of the contents. Its colorless appearance does not compromise product visibility.

In contrast, cling wrap is typically made from plastics such as polyethylene (PE) or polyvinyl chloride (PVC). It is primarily used for food preservation, leveraging its waterproof and breathable properties to slow down food oxidation. It is commonly used in scenarios like refrigerator storage or microwave heating.

The differences between the two are evident in several aspects:

First, sealing film offers greater durability and can be reused, though it requires periodic replacement (e.g., every three years), making it suitable for long-term storage needs. Cling wrap, however, focuses on short-term preservation, is less heat-resistant, and may deform when heated, making it more suitable for temporary use in household kitchens.

Second, sealing film provides more reliable airtightness, effectively preventing leakage of contents. Cling wrap, on the other hand, has higher breathability, which may accelerate the spoilage of oily foods.

Lastly, sealing film typically releases no odors, making it suitable for sensitive items. Cling wrap, due to material properties (such as plasticizers in PVC), may emit odors when exposed to high temperatures, necessitating careful selection of environmentally friendly products.

In summary, while sealing film and cling wrap share similarities in material, their functional positioning differs. Sealing film acts as the "guardian" of packaging sealing, whereas cling wrap serves as a "temporary shield" for food preservation.

Leadtra Packaging is a wholesale and custom manufacturer of aluminum foil sealing films. We specialize in the research, development, and production of various high-barrier packaging materials and easy-tear sealing films, widely used in food, pharmaceutical, cosmetic, and daily product packaging. Our products offer numerous advantages, including environmental friendliness, high safety standards, rigorous testing, and stable quality. If you are interested in our products or have any questions, feel free to contact us for consultation.