28mm 28-400 Aluminum Metal Cap with Pulp & Poly Liner
The 28mm 28-400 aluminum metal cap combines durability and functionality, designed for secure sealing across industries. This cap features a hybrid pulp and polyethylene liner, ensuring compatibility with both dry and liquid contents, providing a reliable sealing solution.
The 28mm 28-400 aluminum metal cap is a high-quality, lightweight closure specifically designed for sealing glass bottles and jars. Its neutral aluminum coating makes it an excellent universal choice, while also offering customization options (such as custom color coatings) to meet specific application needs.
28mm 28-400 Aluminum Metal Cap with Pulp & Poly Liner Technical Specifications
| Parameter | Specification |
| Neck Width | 28mm |
| Neck Finish | 28-400 |
| Dimensions | Approx. 1.194 inches (rolled outer diameter) x 0.407 inches height |
| Material | Aluminum (cap) with white pulp/polyethylene liner |
| Color | Standard aluminum (neutral), customizable coating options available |
| Closure Type | Screw-on design, easy to install and remove |
| Liner Benefits | Combines the rigidity of pulp with the impermeability of polyethylene, extending shelf life |
| Temperature Resistance | Can withstand standard processing temperatures |
| Compliance | May comply with FDA food contact standards (verify with manufacturer) |
| Packaging Box Quantity | 5, 400 per box |
| Pallet Packaging | 194, 400 per pallet (36 boxes per pallet) |
| Box Weight | 41 lbs |
| Box Dimensions | 14 inches x 14 inches x 14 inches |
28mm 28-400 Aluminum Metal Cap with Pulp & Poly Liner Features
- Material: High-quality aluminum shell, lightweight, excellent corrosion resistance, ideal for long-term use.
- Liner Composition: Pulp (compressed paper fiber) for structural integrity and polyethylene (PE) layer for moisture resistance, creating an effective seal.
- Size: Diameter of 28mm, suitable for standard 28mm container neck finish.
28mm 28-400 Aluminum Metal Cap Liner Technology
Pulp and Polyethylene Liner:
This cap features a dual-component liner made from bleached kraft paper pulp and high-density polyethylene (HDPE) lamination. This combination offers the following advantages:
- Chemical Resistance: Resists water-based adhesives, household ammonia, liquid antacids, and many mild chemicals.
- Seal Integrity: Ensures a tight, leak-proof seal, maintaining product freshness and preventing contamination.
- Versatility: Suitable for a wide range of products, from powders and non-acidic foods (such as honey and syrup) to consumer goods like canned candles.
28mm 28-400 Aluminum Metal Cap Performance & Benefits
Durability:
Made from aluminum, the cap is impact-resistant and fracture-proof, capable of withstanding various temperatures. This makes it ideal for high-humidity or high-salinity environments and products that may come into contact with water.
Lightweight:
Despite being made of high-value aluminum, the cap is designed to be lightweight, reducing overall packaging weight and transportation costs.
FDA Compliance:
The cap meets FDA standards, making it suitable for food and beverage applications.
28mm 28-400 Aluminum Metal Cap Applications
Due to its strong performance, this cap is widely used across various industries:
- Food & Beverage: Suitable for non-acidic foods, powders, honey, and syrups.
- Consumer Goods: Commonly used for packaging items such as canned candles and similar products.
- Other Uses: Suitable for water-based adhesives, household ammonia, automotive cleaners, mouthwash, and lemon juice.
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