Waterproof Plugs

We offer a variety of standard-size rubber and silicone waterproof plugs designed for waterproofing, dust protection, and sealing applications. A range of existing sizes and specifications is available for selection. For special dimensions, materials, or product requirements, our in-house mold design and development team can also provide custom design, tooling, and manufacturing services.

Gaskets

We offer a wide range of standard-size rubber and silicone gaskets for various sealing, leak-prevention, and dust-protection applications. A variety of existing sizes and specifications are available for selection. For special dimensions, materials, or application requirements, our in-house mold design and development team can also provide custom design, tooling, and manufacturing services.

Dust Boots

We provide design and manufacturing services for rubber and silicone boots, suitable for dust protection, waterproofing, and component protection across a wide range of applications. Based on customer drawings, samples, or specific product requirements, we provide custom design, mold development, and manufacturing services to create protective solutions tailored to different operating environments and applications.

Bulb Bases

We provide design and manufacturing services for rubber and silicone bulb bases, suitable for automotive lighting and various lighting sealing applications. Based on customer drawings, samples, or specific product requirements, we provide custom design, mold development, and manufacturing services tailored to different lighting applications.

Wire Harness Seals

We provide design and manufacturing services for rubber and silicone wire harness seals, suitable for wire harness systems used in automotive, electronics, and industrial equipment applications. Our wire harness seals help improve waterproofing, dust protection, and sealing performance. Based on customer drawings, samples, or specific product requirements, we provide custom design and manufacturing services tailored to different applications.

Multi-Material Bonded Components

We provide design and manufacturing services for multi-material bonded components, combining rubber or silicone with materials such as metal and plastic to meet a wide range of functional requirements, including sealing, vibration isolation, fastening, and structural support. Based on customer drawings, samples, or specific product requirements, our team provides custom design, mold development, and manufacturing solutions tailored to different materials, structures, and applications.

Custom Product Development

Every product has unique functional requirements and operating conditions. Chieh Cheng provides custom rubber and silicone component development services, supporting customers from product design and material selection to mold development and mass production. With our in-house tooling and manufacturing capabilities, we help turn product concepts into high-quality, production-ready components tailored to specific application requirements.

O-Rings

We offer a wide range of standard-size rubber and silicone O-rings for various sealing, leak-prevention, and dust-protection applications. A variety of existing sizes are available for selection. For specific dimensions, materials, or application requirements, our in-house tooling team can also provide custom mold development and manufacturing services.