Longyixing Chemicals Co., Ltd

Overmolding

TPU TPE TPV TPR TR TPEE Modified Plastic Plastic powder
TPE Overmolding

TPE for overmolding


TPE overmolding is a sophisticated injection molding process that integrates a soft Thermoplastic Elastomer (TPE) layer onto a rigid substrate, such as plastic or metal. This technology is widely utilized to enhance product ergonomics, provide a comfortable "soft-touch" feel, and improve functional performance through shock absorption and sealing. By creating a seamless composite part, overmolding adds significant value in terms of both durability and aesthetic appeal across various industries.

Key Features & Benefits

  • Superior Bonding Strength: TPE overmolding creates a high-strength bond through molecular compatibility and mechanical interlocking, ensuring the soft-touch layer remains securely attached to rigid substrates like PP, ABS, PC, PC/ABS, and PA.

  • Enhanced Ergonomics & Grip: Provides a non-slip, elastic touch that significantly improves user comfort and grip security. The hardness can be precisely adjusted from Shore 25A to 90A to meet specific tactile requirements.

  • Excellent Vibration & Shock Absorption: Acts as a functional "skin" that dampens vibrations and absorbs impacts, protecting internal components and reducing user fatigue in power tools and handheld devices.

  • Durable Surface Protection: Offers outstanding abrasion and scratch resistance, acting as a sacrificial protective layer that extends the product's lifespan in demanding environments.

  • Sealing & Environmental Protection: Enables the creation of airtight and watertight seals (ingress protection), shielding delicate electronics from dust, moisture, and chemical exposure.

  • Processing Efficiency: Compatible with two-shot injection molding and insert molding, allowing for part consolidation, reduced assembly steps, and lower overall manufacturing costs.

  • Design Flexibility: Supports complex geometries and two-tone aesthetics, enabling brand identity through customized colors and textures without the need for secondary painting or coating.

  • Safety & Compliance: Environmentally friendly materials that are halogen-free, phthalate-free, and compliant with RoHS, REACH, and EN71 standards, making them suitable for global markets.

  • Electrical Insulation: Provides excellent dielectric properties for overmolding connectors and wiring harnesses, ensuring safety and preventing short circuits.

Typical Applications

  • Consumer Electronics: Soft-touch protective cases for smartphones and tablets, smart watchbands, and ergonomic grips for gaming controllers.

  • Handheld Tools: Vibration-damping grips for screwdrivers, hammers, power drills, and saws to improve safety and control.

  • Personal Care: Ergonomic and non-slip handles for toothbrushes, razors, combs, and beauty devices.

  • Automotive Components: Overmolded seals, gaskets, interior knobs, and wiring harness connectors for enhanced durability and noise reduction.

  • Medical Devices: Comfortable grips for surgical instruments, syringes, and masks that require biocompatibility and chemical resistance.

  • Sports Equipment: Grips for rackets, golf clubs, bicycle handles, and protective gear for skiing and water sports.

  • Household Goods: Soft-touch handles for kitchen knives, scissors, and suitcases, enhancing the premium feel of daily supplies.


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Longyixing Chemicals Co., Ltd Longyixing Chemicals Co., Ltd

Longyixing Chemicals Co.,Ltd, with 10+ years of experience in TPU R&D and manufacturing, we proudly serve clients across 30+ countries. Our 20,000+ sqm advanced production facility houses 7 fully automated production lines, delivering an annual capacity of 50,000+ tons to meet your TPU needs efficiently and reliably.