Waterproof cover foil is a widely used packaging material with various degrees of customization, according to the products and needs. Here are a few examples of common waterproof The substrates include PET, aluminum foil, paper， etc. Optional to meet the barrier demand, temperature resistance and printing needs of products with different requirements. Various coatings like PE, PVDC, EVOH etc. are available to enhance the waterproofing quality along with improving oxygen barrier, gas barrier and other properties.

As a kind of typical packaging material, waterproof cover foil is essential for product quality and shelf life. Meanwhile, packaging cost reduction is also a concern for companies without sacrificing product quality. Now, waterproof cover foil in inexpensive preservation. Waterproof cover foil can prevent air, moisture, etc. from entering effectively and delay the time of oxidation and deterioration of food, medicine and other products so as to extend their shelf life and lower losses due to deterioration. Cut down moisture, oxidation and other losses by reclamation; reduce production cost. Shield products away from external surroundings and preserve the original status of product features.