Double zero aluminum foil is a cutting-edge product of aluminum rolling technology. Its name stems directly from its thickness specification: when measured in millimeters, its thickness has two zeros after the decimal point.

Yongsheng Aluminum has achieved world-leading mass production of 0.006mm thickness, equivalent to one-tenth the diameter of a human hair. The production of this type of aluminum foil represents the pinnacle of precision in metalworking, requiring a transformation through as many as 18 steps—from an initial 6.8mm aluminum billet, through complex processes such as cold rolling, high-temperature foil pressing, and lamination, to the ultra-thin material that can be shipped as a roll.

Food Packaging

It accounts for nearly 50% of global demand and is the core layer of freshness preservation systems for milk cartons, coffee packaging, chocolate coatings, and more. For example, the inner layer of aseptic milk cartons, covered with double zero aluminum foil, can extend shelf life by more than ten times while eliminating the need for preservatives, achieving the health benefits of "reducing salt and sugar without sacrificing freshness."

Pharmaceutical Protection

With its 100% light-blocking properties and superior microbial barrier properties, it has become the preferred material for tablet blisters and vaccine packaging, with global annual demand experiencing steady growth.

Electronics and Energy

• Electromagnetic Shielding: A full aluminum wrapping completely isolates mobile phone signals.

• New Energy Battery Current Collector: Serves as a current collector in the positive electrode of lithium batteries and the positive and negative electrodes of sodium batteries. Sodium batteries, in particular, require aluminum foil for both the positive and negative electrodes, resulting in a demand of 700-1000 tons/GWh, more than double that of lithium batteries.