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Plastic Silicone bonding Seals & Gaskets for Electric Vehicles & Renewable Energy
Product Introduction
Case Study: Customized Silicone-Wrapped Plastic Accessory for New Energy Vehicle Customer
At Bushang Technology, we take pride in our ability to deliver innovative and high-quality solutions to meet our customers' unique needs. One such project involved a customer in the new energy vehicle (NEV) industry who required a custom silicone-wrapped plastic accessory. This case showcases our expertise in silicone molding, injection molding, and customized liquid silicone products to create a seamless, high-performance solution.
The Challenge
Our customer, a prominent player in the electric vehicle industry, needed a specialized component—a silicone-wrapped plastic accessory. The primary requirements were that the silicone and plastic materials should be seamlessly integrated into one cohesive unit. The component also needed to meet the IP68 waterproof standard, ensuring that it would be fully protected against dust and capable of withstanding prolonged submersion in water. This level of durability is critical for components used in new energy vehicles, where exposure to various environmental conditions is a constant factor.
Additionally, the customer required several hundred silicone sealing ring samples for testing within a tight three-day deadline. The sealing rings would be essential in ensuring the accessory’s waterproof and dustproof properties. This short timeline required us to move quickly while maintaining the highest standards of quality.
Our Approach
1)Rapid Response & Fast Prototyping: Understanding the urgency of the situation, our team immediately began planning and executing a solution. We utilized our advanced injection molding technology to design a custom mold that would allow us to combine the silicone and plastic seamlessly. Thanks to our experienced engineers and efficient workflow, we were able to produce the required mold in just 2.5 days, a remarkable turnaround time considering the complexity of the project.
2)Silicone and Plastic Integration: To meet the customer’s requirements, our engineers carefully designed the mold to ensure that both the silicone and plastic materials would adhere to each other flawlessly. The challenge here was to combine the two materials in such a way that there would be no visible parting line—a key aesthetic and functional requirement. Our team’s deep knowledge of silicone molding and plastic accessories was crucial in achieving this level of precision.
3)IP68 Waterproofing: The silicone-wrapped plastic accessory needed to meet the IP68 waterproof standard. This meant that the accessory had to be fully resistant to water, even when submerged, while also preventing dust from entering. To ensure these strict standards were met, we conducted extensive testing during the prototyping phase, focusing on the silicone’s ability to form a tight seal around the plastic base without compromising flexibility or durability.
4)Quick Turnaround for Sealing Ring Samples: The customer needed several hundred sealing rings for testing within three days. Our team quickly produced the first batch of silicone sealing rings and shipped them to the customer as promised. These rings were crucial in verifying the accessory’s performance in the field. We took extra care to ensure that the rings met the exact specifications required for sealing and waterproofing.

The Feedback & Iteration
After receiving the initial samples, the customer provided us with valuable feedback—they requested that the parting line, which is typically visible in molded products, be removed entirely for a cleaner and more professional look. Understanding the importance of this detail, we immediately took action.
Our engineering team reviewed the design and revised the mold to eliminate the parting line, making sure the silicone and plastic materials bonded smoothly without any visible seams. We re-ran the silicone mold and injection molding process, producing new samples that met the customer’s updated specifications.
The Result
The final product exceeded the customer’s expectations. The silicone-wrapped plastic accessory was not only seamlessly integrated but also passed the rigorous IP68 waterproof test, making it ideal for use in electric vehicles, which require high-performance, durable components. Additionally, the absence of the parting line gave the product a sleek, flawless appearance, further aligning with the customer’s aesthetic goals.
The customer was thrilled with the quick turnaround, the precision of the product, and the seamless collaboration throughout the project. Within just a few days, we were able to deliver a customized solution that met all technical requirements while ensuring a high-quality finished product.
Why Choose Bushang Technology?
This case demonstrates our ability to deliver customized solutions with speed, precision, and quality. Whether it’s for customized liquid silicone products, silicone accessories, or plastic accessories, our team has the expertise and resources to meet even the most demanding requirements.
We specialize in silicone molding, injection molding, and producing silicone sealing rings that meet the highest standards of performance and durability. At Mingxin Silicone, we’re committed to providing products that meet our clients' specifications and exceed their expectations.
If you have a custom silicone or plastic project, reach out to us today. Let us show you how our innovative solutions can help bring your ideas to life.