The Uniseel 38/400 Custom Color Unishell Cap (also known as Unishell closure or Unishell lid) is the ultimate branding tool for supplement, cosmetic, and wellness brands. Moving beyond standard metallic finishes, our custom color service allows you to match your brand's specific Pantone palette with precision. Whether you require a sleek matte black, a vibrant boutique blue, or a professional solid white, the seamless Unishell design provides a high-end, unified aesthetic by completely concealing the bottle threads.
Crafted from premium recyclable tinplate, these custom closures offer a tactile quality and structural durability that plastic caps cannot replicate. Designed for 100% automated application, they ensure high-speed production efficiency while maintaining a bespoke, premium appearance.
Precision-engineered to meet global GPI standards while offering complete visual flexibility.
| Parameter | Specification Detail |
| Neck Finish | GPI 38/400 |
| Material | Recyclable Tinplate (TP) |
| Color Options | Pantone Matching (Matte, Glossy, Pearlescent) |
| Coating | Eco-friendly Protective Lacquer |
| Application | PET Jars, Glass Bottles, HDPE Containers |
At Uniseel, we prioritize transparency in compliance. Our standard Silver and Gold Unishell Caps are fully certified by SGS (FDA, REACH, RoHS). For Custom Color Caps, we utilize high-quality industrial coatings and can facilitate specific third-party testing upon client request to meet regional regulatory requirements.
●Material Safety: All base tinplate materials and standard internal coatings meet strict industrial safety standards.
●Certification (Silver/Gold): Full SGS reports for FDA 21 CFR 175.300, REACH SVHC, and RoHS are available for our core metallic line.
●Liner Compliance: Regardless of cap color, all IHS and PS22 liners are fully SGS certified for food-contact safety (BPA-Free, PAA-Free).
We offer the same high-performance, certified sealing solutions across our entire custom color range.
A. Induction Heat Seal (IHS) Liner
Provides a hermetic, tamper-evident seal that is BPA-Free and PAA-Free, ensuring maximum product freshness.
B. PS22 Pressure Sensitive Liner
The ideal tool-free seal for dry pharmaceuticals and supplements, fully cleared by SGS for migration and heavy metal safety.
Your products are manufactured by Hangzhou Lin'an Shengxiang Technology Co., Ltd., a leader in metal closure technology for over 30 years.
●ISO 9001:2015: Our quality management system ensures precision in every custom color batch.
●Proprietary Patents: We hold numerous patents (e.g., ZL 2018 2 0215930.2, ZL 2023 2 3383081.1) for cap structure and sealing innovations.
●Cleanroom Production: All custom color caps are produced and packed in our ISO Class 7 (Class 10,000) cleanroom.
Beyond color matching, we offer 3D Logo Embossing on our custom color lids. This combination of bespoke color and tactile branding creates a unique packaging experience that drives consumer loyalty.
Our History: Over 30 Years of Packaging Expertise
Hangzhou Uniseel Technology Co., Ltd. is the specialized foreign-trade subsidiary of Hangzhou Lin'an Shengxiang Technology Co., Ltd. Since the 1990s, we have been a dedicated leader in the cap manufacturing industry, accumulating over thirty years of expertise in high-precision sealing solutions.
R&D Excellence and Quality Assurance
Equipped with advanced production facilities and an ISO Class 7 (Class 10,000) cleanroom, our company holds dozens of patented technologies. Our stringent quality management system is ISO9001 certified, ensuring every product meets pharmaceutical-grade requirements.
Our Corporate Slogan: Unified Quality, Sealed for Safety.
At Uniseel, we believe a cap is the final guardian of your product's integrity. Our mission is to provide global brands with reliable, aesthetically superior, and legally compliant sealing solutions that protect consumer health and elevate brand value.
Q1: Can you match a specific Pantone color for my brand?
A1: Yes, we provide precise color matching based on Pantone (PMS) references. We recommend a physical color swatch for the most accurate industrial color calibration.
Q2: What is the MOQ for custom color unishell closures?
A2: For bespoke Pantone matching, the MOQ typically starts at 50,000 units to ensure color consistency during the automated coating process.
Q3: Do custom color caps have the same certifications as silver/gold?
A3: Our core Silver and Gold lines have full SGS reports (FDA/REACH/RoHS). For custom colors, the liners remain fully certified, and we can coordinate specific testing for the color coating if required by your market.
Q4: Are matte finishes available for custom color lids?
A4: Yes, we offer both high-gloss and sophisticated matte finishes for our custom color unishell lids.
Q5: How do you ensure color consistency across large orders?
A5: Our 100% automated coating line uses high-precision spectrophotometers to ensure that every cap in your order matches the approved color standard.
Q6: What are the primary advantages of Tinplate over Aluminum for Unishell caps?
A6: Tinplate offers superior structural rigidity and dent resistance compared to aluminum. This ensures that the cap maintains its seamless, straight-sided aesthetic even during bulk shipping and handling. Additionally, tinplate provides excellent compatibility with various lacquers and coatings, ensuring long-term corrosion resistance.
Q7: Are these caps compatible with all 38/400 neck finish bottles?
A7: Our caps are manufactured to the strict GPI 38/400 standard. They are fully compatible with any glass or plastic (PET/HDPE) bottle that adheres to this standard.
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