MC Aluminum’s 3105 H14 aluminum sheet is an aluminum-manganese alloy featuring excellent anti-rust properties, good plasticity, and superior weldability-making it ideal for stamping and printing applications. In the H14 temper (half-hard, strain-hardened), it offers a balanced combination of moderate strength and ductility, ensuring shape stability during bottle cap manufacturing. Its flat, oil-free surface allows for sharp, clear printed designs.

The 3105 H14 aluminum closure sheet is widely used in caps for alcoholic beverages, soft drinks, cosmetics, and pharmaceutical packaging, with its corrosion resistance proving especially reliable in humid environments.

3105 Bottle Cap Aluminum Sheet Specifications

Mechanical Properties of 3105 H14 Aluminum Sheet

Performance Features of 3105 Aluminum Sheet for Vodka Bottle Caps

1. Lightweight with High Strength
While meeting the strength requirements of bottle caps, 3105 aluminum sheet is about two-thirds lighter than steel-helping to reduce overall packaging weight, cut transportation costs, and support easy recycling.

2. Excellent Formability
3105 H14 aluminum sheet is ideal for deep drawing, stretching, and bending-processes essential for producing bottle caps with precise threads and tamper-evident rings that fit perfectly onto bottle necks.

3. Corrosion Resistance
The 3105 alloy resists corrosion from vodka alcohol and other environmental factors, ensuring that the cap remains rust-free and intact over long-term storage.

4. Strong Surface Coating Adhesion
With a dense, smooth surface, 3105 aluminum sheet is perfect for various finishes including spraying, printing, hot stamping, and embossing. Coatings and inks adhere firmly, maintaining color and clarity even during prolonged storage and transport.

5. Safety
3105 aluminum sheet meets food-contact safety standards and will not react harmfully with alcohol or other beverage ingredients, ensuring safe consumption.

6. Environmentally Friendly & Recyclable
As a 100% recyclable material, 3105 aluminum sheet aligns with the global trend toward green packaging and meets environmental regulations in markets such as Europe and North America-helping beverage brands enhance their sustainable image.

7. Cost-Effective
Compared with certain higher-grade alloys, 3105 provides sufficient performance at a more competitive cost, making it an ideal choice for large-scale cap production.

Surface Treatment & Printing Options for 3105 Aluminum Closure Sheet

1. Base Treatment Options

• DOS Oil Lubrication: Reduces stamping friction and extends mold life.

• Chrome Plating: Improves scratch resistance and adds a metallic luster finish.

2. Color Coating

• Single-Side Coating (gold/white/red, etc.) + backside protective varnish, or double-side transparent varnish-suitable for brand logo printing.

• MC Aluminum offers chromate pretreatment to enhance ink adhesion and ensure high print clarity.