Home » Products » Industry » Custom Injection Mold 2K Molding Dual-Material Cup Lid Leak-Proof, Food-Safe And Seamless

Custom Injection Mold 2K Molding Dual-Material Cup Lid Leak-Proof, Food-Safe And Seamless

Our custom dual-material injection molded cup lid is engineered for secure sealing, durability, and user comfort. Produced via 2-shot (two-component) injection molding, it integrates a rigid outer shell and a flexible inner seal in a single, seamless part—eliminating secondary assembly and delivering superior performance over traditional single-material lids. Designed for food and beverage applications, it meets strict safety standards while offering customizable aesthetics and functionality.
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  • yixun

  • yixunmold

Our custom dual-material injection molded cup lid is engineered for secure sealing, durability, and user comfort. Produced via 2-shot (two-component) injection molding, it integrates a rigid outer shell and a flexible inner seal in a single, seamless part—eliminating secondary assembly and delivering superior performance over traditional single-material lids. Designed for food and beverage applications, it meets strict safety standards while offering customizable aesthetics and functionality.

Key Features & Benefits

Feature Benefit
Dual-Material Construction Combines a rigid outer shell (PP/ABS/PC) for structural stability with a soft, food-grade elastomer (TPE/TPU/silicone) for a watertight seal.
Leak-Proof Design The flexible inner seal conforms tightly to the cup rim, preventing spills and maintaining freshness for beverages and food.
Precision Central Hole A precisely molded central opening allows easy sipping while maintaining a drip-free seal when closed.
High-Gloss Outer Finish The rigid outer layer provides a smooth, glossy surface ideal for branding, printing, or direct consumer contact.
Ergonomic Contour The contoured shape fits comfortably in hand and ensures a secure grip during use.
One-Step Molding 2-shot injection molding combines two materials in a single production step, reducing labor costs and assembly time.

Technical Specifications

  • Outer Material: Rigid plastic (PP, ABS, or PC) – customizable for strength and appearance.

  • Inner Material: Food-safe elastomer (TPE, TPU, or silicone) – soft, non-toxic, and compliant with FDA/EFSA standards.

  • Color: Customizable (e.g., teal outer shell with clear inner seal; Pantone matching available).

  • Design: Circular shape with central sipping hole and contoured rim for secure fit.

  • Surface Finish: High-gloss outer surface; matte/textured inner seal for enhanced grip and sealing.

  • Compliance: BPA-free, FDA food-contact approval, and RoHS/REACH compliant.


Applications

  • Beverage Containers: Travel mugs, reusable coffee cups, water bottles, and tumblers.

  • Food Storage: Snack bowls, baby feeding cups, and sealed food containers.

  • Promotional Products: Branded drinkware for corporate events, marketing campaigns, and retail.

  • Household & Outdoor: Picnic sets, camping gear, and kitchen storage solutions.


Manufacturing & Quality Assurance

  • Injection Molding Process: 2-shot injection molding with precision multi-cavity tooling for high-volume production.

  • Mold Design: Custom tooling optimized for material bonding and consistent part quality.

  • Quality Control: ISO 9001-certified processes, including dimensional inspection and material traceability.

  • Safety Compliance: Full compliance with food safety regulations; COA (Certificate of Analysis) provided with every order.


Customization Options

  • Materials: Select rigid and flexible materials to meet performance, safety, and cost requirements.

  • Colors & Finishes: Custom Pantone colors, glossy/matte finishes, and textured surfaces.

  • Branding: Mold-in logos, printed graphics, or embossed text for product identification.

  • Features: Add straw slots, flip-top closures, or tamper-evident seals for enhanced functionality.

  • Packaging: Custom retail boxes, bulk bags, or labeled cartons for easy distribution.


Why Choose Our Dual-Material Cup Lids?

Our custom injection molded dual-material cup lids deliver unmatched sealing performance, durability, and cost efficiency. By leveraging advanced 2-shot molding technology, we eliminate assembly steps, reduce production costs, and ensure consistent quality—making them the ideal choice for food-safe, leak-proof beverage and food container solutions.

 Dual-Material Cup Lid

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Yixun is the China first generation mold maker, specialize in mold and moulding, provide one-stop plastic manufacturing service, feature in building medical and healthcare device tooling.
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