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Combining high-grade aluminum outer shells with food-safe polypropylene inner liners, this 38/400 bottle cap balances luxurious metallic aesthetics with uncompromising functional performance, precision-machined to fit all standard 38-400 neck finish PET bottles. Whether you are launching a high-end product line or upgrading your existing commercial packaging, our colorful aluminum plastic cap for PET bottle delivers consistent leak-proof protection, exceptional shelf appeal, and reliable performance in high-volume production and global distribution environments.
The aluminum outer layer delivers a premium, high-end finish that elevates your product’s shelf presence, outperforming standard plastic closures for luxury and mainstream brand lines alike.
The food-grade polypropylene inner liner creates an airtight, tamper-evident seal, minimizing product spoilage, leakage risks, and costly returns for your commercial operations.
Precision-engineered dimensions ensure seamless compatibility with automated filling and capping lines, reducing downtime and maximizing production efficiency for bulk manufacturing.
Parameter | Detailed Specifications |
Core Material | Aluminum / Food-Grade Polypropylene |
Neck Finish | 38-400 |
Dimensions (W×H) | 41mm×14mm |
Standard Color Options | Silver, Gold, Black, Rose Gold; Full Custom Color Matching Available |
Surface Finish | Matte or Shiny |
Supported Logo Decoration | Silk Screen Printing, Two Times Oxidation, Embossing |
This 38/400 aluminum plastic bottle cap is ideal for a wide range of commercial packaging use cases, including premium bottled beverages (spring water, craft cold brew, functional drinks), high-end personal care & cosmetics (body lotion, facial toner, hair care products), nutraceuticals & liquid health supplements, and luxury home care & aromatherapy products.
We offer end-to-end customization services for our business clients to align closures with your brand identity. This includes custom color matching to your brand’s visual standards, tailored matte or shiny surface finishes, and three premium logo decoration methods to create a unique, recognizable packaging design. We support flexible production runs, from small-batch prototype development to large-scale bulk manufacturing.
Every 38/400 aluminum plastic cap undergoes rigorous in-house quality testing, including seal integrity checks, torque consistency verification, and temperature cycle testing. Our materials meet FDA food contact regulations, EU 10/2011 plastic food contact standards, and global packaging safety requirements, with ISO 9001 certified production processes to ensure batch-to-batch consistency for global distribution.
This 38/400 bottle cap is precision-engineered to fit all standard 38-400 neck finish PET bottles, ensuring a secure, consistent fit for commercial filling operations.
Yes. We offer full custom color matching services to align with your brand’s visual identity, alongside our standard silver, gold, black, and rose gold options.
We support three premium decoration options: silk screen printing, two times oxidation, and embossing, to create a high-end, bespoke look for your packaging.