Colored coated aluminum sheet for beverage caps is a functional aluminum material designed specifically for the beverage packaging industry. Using food-grade aluminum alloys as the base material, it undergoes processes such as degreasing, chemical treatment, coil coating, and baking/curing. This results in a uniform, stable, and food-safe colored coating layer. According to customer requirements, the surface can be finished in different colors, gloss levels, and printing effects, providing both functional performance and customized brand design.

The base materials for beverage bottle caps include alloys such as 3105, 3004, 5052, and 8011, known for their excellent formability, strength, and resistance to wrinkling or earing. Among these, 8011 and 3105 are the most common choices for ROPP caps and various aluminum closures. Alloy 8011 is widely used in aluminum bottle caps thanks to its excellent deep-drawing properties, flatness, and recyclability. Alloy 3105 offers a good balance between strength and formability, making it another preferred option for closure material.

Bottle cap aluminum sheets typically have a thickness between 0.20-0.25 mm, which ensures rigidity of the closure while maintaining cost efficiency. The surface coating uses food-contact grade resins (such as polyester or epoxy), free from heavy metals and harmful volatile substances. After high-temperature curing, the coating forms a stable layer with no migration risk during direct or indirect contact with beverages, ensuring product safety.

Aluminum Closure Sheet Product Information

Product Features of Aluminum Closure Sheets for Beverage Caps

Excellent Formability
The coated aluminum sheet offers good flexibility and is suitable for stamping, deep drawing, spin forming, and roll threading, making it ideal for producing ROPP caps and aluminum screw caps.

Food-Grade Safety
All coatings meet food-contact safety standards. They provide excellent resistance to acids, alkalis, and heat, ensuring beverages remain uncontaminated during storage and transport.

Outstanding Corrosion Resistance
The dense, uniform coating effectively resists acidic components in beverages and external humid environments, extending the service life of bottle caps.

Strong Brand Customization Capability
Colored coated aluminum sheets support multi-color printing, hot stamping, embossing, anodizing, and other processes, turning caps into a medium for brand communication and enhancing product recognition.

Green & Sustainable
Aluminum is fully recyclable, and the coatings comply with environmental regulations. This helps beverage companies reduce their carbon footprint and aligns with the global trend toward sustainable packaging.

Application Fields of Aluminum Bottle Cap Material

• Carbonated beverage caps: For popular drinks like Coca-Cola, Pepsi, etc.

• Juice and functional drink caps: Ensuring sealing and attractive appearance.

• Beer and spirits caps: Providing anti-counterfeiting and premium branding.

• Mineral water caps: Lightweight and environmentally friendly.

Why Choose Colored Coated Aluminum Sheets for Beverage Caps?

Compared with traditional cap materials, colored coated aluminum sheets offer lightweight, corrosion resistance, attractive appearance, food safety, and environmental benefits. Their excellent processing performance also improves production efficiency, making them the ideal choice for beverage packaging companies seeking to reduce costs and increase product value.