250 ml Bottles 28×15 mm MCA Aluminum Caps

These 250 ml bottles come with 28×15 mm MCA aluminum caps, specifically designed for safe, sealed packaging. They are ideal for industries that require reliable sealing, offering both durability and functionality.

These MCA aluminum caps are meticulously designed closures intended to provide a secure, tamper-evident seal for 250 ml bottles. Made from high-quality, corrosion-resistant aluminum, they ensure product integrity and an attractive, modern appearance.

250 ml Bottle Specifications

Specification	Description
Capacity	250 ml (8.45 oz) – Suitable for liquids, semi-liquids, or powders.
Material	Typically PET (transparent, rigid) or HDPE (opaque, chemical-resistant); material varies depending on application.
Neck Finish	Compatible with 28 mm caps (e.g., 28-400 or 28-410 threads).
Design	May include wide-mouth designs for easy filling or narrow neck designs for controlled pouring.

250 ml Bottle Specifications

250 ml Bottles 28×15 mm MCA Aluminum Caps Core Specifications

Cap Dimensions:

Inner diameter: 28 mm (precisely 28.7±0.15 mm) .
Height: 15–15.7 mm.
Weight: ~4.3 g (1.8 g aluminum top, 2.5 g plastic components) .

Bottle Compatibility:

Designed for MCA (Mittelkeil-Abschluss) finish bottles, standardized for 28 mm necks .
Compatible with 250 ml straight-neck glass bottles (dimensions: 204.5 mm height, 55.3 mm width, 190 g weight).

28×15 mm MCA Aluminum Caps

28×15 mm MCA Aluminum Caps Dimensions and Compatibility

Inner Diameter: 28 mm, suitable for MCA/ROPP bottle caps
Height: Approximately 15–15.7 mm (commonly rounded to 15 mm), matched to bottle neck design
Application: Standard 250 ml straight-neck bottles, compatible with MCA/28 mm caps

28×15 mm MCA Aluminum Caps Structural Features

Tamper-Evident Mechanism:

Upon first opening, the tamper-evident ring (tamper band) detaches, leaving a visible mark.
Optional single/double perforation bands for effective break control.

Material and Structure:

Aluminum top with plastic skirt; corrosion-resistant and recyclable.
Edges with knurling or ribbing to enhance grip.

Liner System:

Standard EPE (expanded polyethylene) liner for airtight sealing.
Optional PVC-free, induction seal, or foam liners for enhanced chemical/oil resistance.

Performance and Compatibility:

Designed to provide leak-proof airtight sealing, ensuring product freshness and quality during storage, transport, and display.
Highly suitable for automated capping lines, offering an economical and efficient solution for large-scale production in beverage, cosmetic, pharmaceutical, or food industries.

Environmental Consideration:

The recyclability of aluminum makes these caps an eco-friendly choice, aligning with sustainable packaging initiatives.

28×15 mm MCA Aluminum Caps Structure and Material

Cap Body: Made from durable lightweight aluminum alloy through stamping—corrosion-resistant, recyclable, and provides effective barrier protection.
Surface Treatment: Customizable via anodizing, powder coating/spraying—available in matte, glossy, or various colors (black, gold, red, green, silver).

28×15 mm MCA Aluminum Caps Tamper-Evident ROPP Design

Manufactured using cold roll-on tamper-evident process—threads are formed during mechanical capping.
Tamper Band: Leaves a detachable ring on the bottle neck upon first opening, clearly indicating tampering.

28×15 mm MCA Aluminum Caps Sealing Liners

Liner options include:

PVC-free compounds (TPE/PVC-free): Approved for food, beverage, and pharmaceutical use.
Polyethylene foam or pulp-polyethylene: Excellent moisture resistance, suitable for general-purpose use.

Purpose: Ensures leak-proof performance and maintains freshness/carbonation.

28×15 mm MCA Aluminum Caps Customization Options

Colors and Printing: Lithography, embossing, hot stamping, UV printing, debossed/embossed logos, matte/gloss finishes, foil stamping—flexibility for brand promotion.
Surface Finish Options: Matte, glossy, metallic luster, and multicolor effects available.
Colors: Gold, black, silver, red, green, blue, and customized dual-tone combinations (e.g., gold/black, silver/turquoise).

28×15 mm MCA Aluminum Caps Performance and Compatibility

Process Resistance:

Withstands pasteurization (85°C), hot filling (95°C), and carbonation (up to 5 bar pressure).

Container Types:

Glass bottles (flint/amber), PET, and aluminum containers.

28×15 mm MCA Aluminum Caps Applications

Application Area	Description
Beverages and Edible Oils	The 28×15 mm MCA Aluminum Caps are ideal for sealing beverage and edible oil bottles as they provide reliable airtightness, effectively preventing the entry of external air and moisture, maintaining the freshness and flavor of liquids. Their tight sealing performance is especially suitable for long-term storage of these liquids, preventing contamination and ensuring product quality.
Cosmetics	The 28×15 mm MCA Aluminum Caps are widely used in cosmetic packaging, particularly for products like serums, lotions, and creams. The aluminum shell not only provides excellent corrosion resistance but also effectively maintains the stability of the internal product, protecting it from UV rays and oxygen. Additionally, the MCA liner further enhances the cap's sealing ability, extending the shelf life of cosmetics.
Pharmaceuticals: Liquid Medicines, Syrups	The 28×15 mm MCA Aluminum Caps are perfect for packaging pharmaceuticals, especially liquid medicines and syrups. The MCA liner prevents moisture and air from entering, preserving the stability and effectiveness of the drugs. The cap's sealing ability prevents contamination, ensuring patients receive safe and effective treatment.
Personal Care: Lotions, Serums, Essential Oils	The 28×15 mm MCA Aluminum Caps have broad applications in personal care product packaging, especially for high-end care products like lotions, serums, and essential oils. Its sealing design effectively prevents moisture and air, keeping the liquid's quality unaffected by external factors. The aluminum cap also provides excellent tamper-evident features, ensuring that the products consumers use are intact.
Food and Beverages: Sauces, Condiments, Syrups	The 28×15 mm MCA Aluminum Caps are widely used for packaging food and beverage products like sauces, condiments, and syrups. Its sealing performance prevents liquid leakage and prevents contaminants from entering, maintaining the taste and quality of the product. Whether during transport or storage, this cap ensures the safety and freshness of food products.
Industrial/Laboratory: Chemicals, Reagents (Verify Material Compatibility)	The 28×15 mm MCA Aluminum Caps also play an important role in industrial and laboratory settings, especially for packaging chemicals and reagents. Its corrosion-resistant properties and airtight sealing ability effectively prevent chemical leakage or contamination, ensuring the stability of materials in experiments or industrial operations. Compatibility with chemicals should be verified to ensure safe and reliable use.

28×15 mm MCA Aluminum Caps Advantages

Advantage	Detailed Description
Airtight Sealing	The MCA liner of the 28×15 mm MCA Aluminum Caps ensures the freshness of liquids inside the bottle and effectively prevents leakage. The MCA liner provides excellent airtightness, preventing moisture, air, and protecting the contents from external environmental factors. This sealing performance makes the cap ideal for products that need to be preserved for long periods, such as liquids and other sensitive products.
Tamper-Evident	The 28×15 mm MCA Aluminum Caps can be equipped with safety rings, providing tamper-evident functionality. The safety ring will break when the cap is first opened, ensuring the packaging has not been tampered with, thereby increasing product safety and reliability. This design not only protects products from improper handling but also enhances consumer trust in the brand.
Durability	The 28×15 mm MCA Aluminum Caps exhibit excellent durability, with the aluminum material effectively preventing rust and degradation. When used with plastic bottles, the cap offers long-term stable sealing performance. Additionally, the plastic bottles themselves possess impact resistance, making the entire packaging more resilient against external damage during transportation and use, ensuring the safety of the contents.
Customization	The 28×15 mm MCA Aluminum Caps offer a wide range of customization options, allowing users to select different colors, embossing, or logo designs to enhance product recognition and brand image. Furthermore, the bottles themselves can be colored or labeled to meet various market demands, increasing product personalization and market appeal.

Compliance and Safety

Complies with strict quality and food safety standards, safe for direct contact with consumables.

Food Grade: Compliant with FDA/EC standards if used for consumables.
Chemical Resistance: HDPE bottles are suitable for corrosive substances.

Offers customization potential (e.g., brand or logo embossing) to meet specific market or regulatory requirements.

This comprehensive design not only enhances the shelf appeal of the 250 ml bottles but also ensures the product remains safe and well-preserved throughout its lifecycle.

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