Physical Spec v1.0
Density2.7 g/cm³
Usage Temp-73°C ~ 371°C
Common Thickness7μm, 9μm, 12μm
Typical structures
PET / AL / PEPET / AL / NY / RCPPPaper / PE / AL / PE
Technical Datasheet
AL Foil
Aluminum foil is a thin, pliable sheet of pure aluminum. It acts as a total barrier against moisture, light, and gases. It is the gold standard for high-barrier packaging requiring maximum shelf-life and flavor retention.
Core properties
Zero light transmission
Total gas barrier
High heat conductivity
Dead-fold characteristic
Highly decorative metallic luster
Available Series
Pure Foil
Electrolytic Aluminum 99.7%
Alternatives
VMPET (Metalized PET)VMCPP (Metalized CPP)
Engineering Insights
Advantage
Total Barrier
Complete protection against UV, oxygen, and moisture.
Advantage
Heat Stability
Stable across extreme temperatures without warping.
Advantage
Odor Preserving
Locks in delicate aromas, perfect for coffee and spices.
Limitation
Brittleness
Can fracture if folded sharply, leading to pinholes.
Limitation
Acid Sensitivity
Poor resistance to high acids; requires protective inner layers.
Practical Usages
Long Shelf-Life
Standard for coffee bags and retort pouches.
Decorative
Provides a premium, high-end metallic appearance.