橡楚编辑部 6/14/2026 42 min read
Xiangchu Rubber has officially launched its official website, providing professional liquid silicone rubber (LSR) overmolding OEM/ODM services for enterprises in Hubei and surrounding areas. As a local professional silicone product manufacturer, Xiangchu Rubber has standardized production workshops, advanced LSR molding equipment and a senior technical team, which can meet the customized silicone product production needs of medical, automotive, consumer electronics and other fields, providing customers with full-chain代工 solutions from mold development, raw material selection to mass production.
China’s liquid silicone rubber (LSR) manufacturing landscape has long been concentrated in coastal regions such as the Pearl River Delta and Yangtze River Delta for decades, leaving central China’s industrial clusters facing extended lead times, high logistics costs, and limited access to specialized LSR overmolding capacity for automotive, medical, consumer electronics, and food contact applications. For original equipment manufacturers (OEMs) and original design manufacturers (ODMs) operating in Hubei and neighboring central provinces, this gap has created persistent supply chain vulnerabilities, particularly as demand for high-precision, food-grade, and medical-grade silicone components has surged 21% year-over-year in central China as of 2024, according to the Hubei Advanced Manufacturing Industry Association.
Against this backdrop, Xiangchu Rubber, a Hubei-based LSR manufacturing specialist, has officially launched its official website, marking the first dedicated LSR overmolding OEM/ODM service platform in central China. The platform addresses unmet demand for localized, high-quality silicone production services within the region, offering end-to-end support from material formulation to mass production for clients across high-growth sectors. This article explores the technical capabilities, service frameworks, and industry-specific value propositions of Xiangchu Rubber’s new offering, as well as the competitive advantages it brings to central China’s manufacturing ecosystem.
LSR overmolding, a process that bonds liquid silicone rubber to rigid substrates including engineering plastics, metals, and glass, requires precise control over material compatibility, process parameters, and tooling design to achieve consistent bond strength, dimensional accuracy, and regulatory compliance. Xiangchu Rubber’s service offering is built on a 12,000 sq.m. production facility in Xiangyang, Hubei, equipped with 28 fully automated LSR injection molding presses ranging from 55T to 650T clamping force, and a class 100,000 clean production area for medical and food contact components.
A common pain point in LSR overmolding is delamination between the silicone layer and substrate, which occurs in up to 12% of unoptimized overmolding projects, per data from the International Liquid Silicone Rubber Association. Xiangchu Rubber mitigates this risk through in-house material formulation capabilities and pre-project compatibility testing for over 40 common substrate materials, as detailed in Table 1 below.
Xiangchu Rubber’s R&D team has developed 17 proprietary LSR formulations tailored for specific overmolding use cases, including a medical-grade formulation with 75A shore hardness and low compression set <6% for long-term implantable device components, and a UV-stabilized outdoor-grade LSR that withstands 5,000 hours of UV exposure without discoloration for automotive exterior parts. All materials comply with global regulatory standards including FDA 21 CFR Part 177.2600, EU 1935/2004, ISO 10993-5, and IATF 16949, eliminating the need for clients to source third-party material testing for global market access.
Before initiating mass production, the team conducts a mandatory 72-hour bond strength aging tests under extreme conditions including -40°C to 120°C temperature cycling, 95% humidity exposure, and chemical resistance testing for client-specific operating environments. This pre-production validation process reduces the risk of field failure rate to <0.1% for mass-produced overmolded parts, a 90% improvement over the industry average of ~1% for unoptimized processes.
Xiangchu Rubber’s tooling center employs 12 CNC machining centers with ±0.005mm machining accuracy, supported by a team of 18 tooling designers with an average of 11 years of LSR overmolding experience. The team specializes in cold runner system design for LSR, which reduces material waste by 32% compared to traditional hot runner systems, and precision venting design that eliminates trapped air and short shot defects in complex part geometries with wall thicknesses as low as 0.15mm.
The production process is fully digitized with MES (Manufacturing Execution System) monitoring of 24/7, with real-time tracking of injection pressure, mold temperature, curing time, and material dosing accuracy. Key process parameters for LSR overmolding are maintained within tight tolerances as shown below:
This level of process control enables Xiangchu Rubber to achieve dimensional tolerances of ±0.02mm for high-precision components such as medical device seals and consumer electronics waterproof parts. For high-volume production runs, the facility has an annual capacity of 120 million LSR overmolded parts, with a standard lead time of 15 days for tooling fabrication and 7 days for mass production delivery, 30% faster than the average lead time for coastal manufacturers serving central China clients, due to reduced logistics and localized support.
Xiangchu Rubber’s official website integrates a full-service portal that enables clients to submit project requirements, access real-time production progress, and download quality reports, and request regulatory documentation directly, with dedicated account managers assigned to each project to ensure alignment with client expectations. The service framework is structured to support both full OEM projects with existing designs and ODM projects requiring end-to-end design and development support.
For clients with finalized product designs and specifications, Xiangchu Rubber’s OEM service follows a standardized 5-step process designed to minimize time to market and reduce production costs:
For high-volume OEM clients, Xiangchu Rubber offers consignment inventory services, with 1–2 months of safety stock stored in its Xiangyang warehouse to support just-in-time (JIT) delivery for automotive and consumer electronics production lines.
For clients with product concepts but no finalized designs, or those looking to optimize existing LSR overmolded part designs to reduce costs or improve performance, Xiangchu Rubber’s ODM service includes full design, prototyping, testing, and production support. The ODM team has completed 47 successful ODM projects since 2021, including a medical grade overmolded insulin pump seal that reduced part cost by 28% for a Shanghai-based medical device manufacturer, and a waterproof overmolded USB-C connector for a Wuhan-based consumer electronics brand that achieved IP68 waterproof rating.
The ODM service includes the following value-added support:
All intellectual property (IP) rights for ODM projects are fully assigned to the client, with non-disclosure agreements (NDAs) signed prior to project initiation to protect client design confidentiality.
LSR overmolded parts are used across a wide range of sectors, each with unique performance and regulatory requirements. Xiangchu Rubber’s service offerings are tailored to the specific needs of four high-growth sectors, with dedicated production lines and quality control processes aligned to sector-specific standards.
The global medical LSR market is projected to reach $3.2 billion by 2027, with demand for overmolded medical device components growing at a CAGR of 8.7%, per Grand View Research. Xiangchu Rubber’s medical production area is a class 100,000 clean room, certified to ISO 13485 medical quality management system, with all production processes comply with GMP (Good Manufacturing Practices) requirements.
Medical application solutions include:
All medical parts are produced with lot number tracking for every production batch, with full traceability from raw material batch records to production process records and final inspection records, stored for 10 years to meet medical device regulatory requirements.
The automotive sector is the largest end-user of LSR overmolded parts, with demand driven by the growth of electric vehicles (EVs), which use 3x more silicone components than traditional internal combustion engine vehicles. Xiangchu Rubber’s automotive production line is certified to IATF 16949 automotive quality management system, with parts designed to meet 15-year service life requirements for automotive applications.
Automotive and industrial application solutions include:
All automotive parts undergo 100% leak testing for seal components, with pressure decay testing up to 10 bar to ensure zero leakage in high-pressure applications.
Consumer electronics and food contact LSR products require strict compliance with food safety regulations and consumer-facing aesthetic requirements. Xiangchu Rubber’s consumer goods production line is certified to ISO 9001 quality management system, with all food contact materials compliant with FDA and EU food contact regulations.
Consumer electronics and food contact application solutions include:
For consumer electronics parts, Xiangchu Rubber offers a range of surface finish options including matte, glossy, and textured finishes, with custom color matching available to meet client brand aesthetic requirements, with color difference controlled within ΔE < 1.0 to ensure consistent color across production batches.
The launch of Xiangchu Rubber’s official website fills a long-standing gap in central China’s LSR manufacturing ecosystem, providing local and global clients with a localized alternative to coastal LSR overmolding service providers, with equivalent technical capabilities, faster lead times, lower logistics costs, and dedicated regional support. For Hubei-based manufacturers in the automotive, medical, consumer electronics, and food contact sectors can now reduce their supply chain length by an average of 400km, cutting logistics costs by 25–30% and reducing lead times by 30% compared to sourcing from coastal manufacturers.
Xiangchu Rubber’s service offering is differentiated by its in-house material formulation expertise, precision tooling design capabilities, end-to-end OEM/ODM support, and sector-specific regulatory compliance certifications, making it a viable choice for both low-volume custom projects and high-volume mass production runs. The company’s official website includes a project quotation portal, technical resource library with LSR overmolding design guides, regulatory compliance documents, and case studies for each industry, enabling clients to evaluate project feasibility and request quotations online at any time.
As central China’s advanced manufacturing sector continues to grow, with Hubei’s automotive production volume reaching 2.1 million units in 2023 and medical device industry output growing at 18% year-over-year, localized LSR overmolding services will play an increasingly critical role in supporting supply chain resilience and reducing production costs for regional manufacturers. Xiangchu Rubber’s new platform positions the company as a leading regional LSR manufacturing specialist, well-positioned to meet the growing demand for high-quality, customized LSR overmolded parts in central China and beyond.