Produced by a local liquid silicone rubber products manufacturer in Hubei, China, we use food-grade LSR raw material and support injection molding customization. Our products feature high precision and good sealing performance, meet food contact safety standards, and can meet the application needs of multiple industries with stable delivery and guaranteed quality.
Material
Food-grade LSR
Hardness
Shore A 20-70
Temperature
Certifications
Applications
-40°C ~ +200°C
Colors
Black, White, Transparent, Customizable
# Custom Food-grade LSR Overmolded Products Made In Hubei
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Our custom food-grade liquid silicone rubber (LSR) overmolded products, manufactured at our Hubei-based production facility, deliver high-precision, biocompatible solutions for industries requiring strict material safety and durable multi-material assemblies. As a leading Hubei liquid silicone rubber products manufacturer, we combine local advanced injection molding infrastructure with raw material supply chain advantages to deliver custom overmolded components that meet global food contact regulatory standards.
LSR overmolding bonds liquid silicone rubber directly to rigid substrates—including engineering plastics, stainless steel, aluminum, and other thermoplastics—to create single integrated components that leverage the strength of rigid materials and the elasticity, sealing, and non-slip properties of silicone. Our custom service supports prototyping through high-volume mass production, with full design flexibility to match unique functional and aesthetic requirements across consumer, medical, and industrial applications. All production follows strict GMP (Good Manufacturing Practices) and is backed by decades of LSR processing expertise from our Hubei engineering team.
Core selling points include 100% food-grade raw material traceability, zero flash precision molding, custom formulation and hardness adjustment, compliance with international food safety standards, and competitive pricing from local Hubei manufacturing with efficient global logistics.
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All base LSR materials used in our overmolded products are formulated exclusively from food-grade platinum-cured liquid silicone rubber, free of peroxides, BPA, phthalates, and other restricted additives. Key material properties are listed below:
For finished overmolded products, we maintain consistent physical performance per below standards (adjustable per custom requirements):
Our Hubei facility uses precision vertical and horizontal LSR injection molding equipment with automated material metering systems. Standard process parameters for overmolding are controlled as follows:
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As a Hubei-based manufacturer focused on export and domestic high-end markets, we maintain full traceability of all raw materials from internationally certified silicone suppliers. Every batch is tested for extractable residues, heavy metals, and microbial content, with all products meeting FDA, EU, and Chinese national food contact standards. Unlike condensation-cured silicone from low-cost suppliers, our platinum-cured LSR produces no harmful byproducts during curing and use, making it safe for long-term direct food contact.
Our proprietary surface pretreatment and bonding technology for substrates eliminates delamination even under repeated temperature cycling, sterilization, and mechanical stress. We pre-treat rigid substrates (including PEEK, PP, ABS, 304/316 stainless steel) to create a chemical bond between LSR and the base material, rather than relying on mechanical adhesion that fails over time. This results in overmolded products that maintain structural integrity for 5+ years of regular use.
Our automated LSR injection molding systems at the Hubei facility achieve near-net-shape production with minimal flash, reducing the need for manual trimming and the risk of dimensional deviation. We can produce complex geometries, including undercuts, micro channels, and fine texture surfaces, that are not achievable with conventional solid silicone molding. This precision reduces assembly steps and improves end-product consistency for mass production orders.
As a direct manufacturer in Hubei, we offer full customization of hardness, color, size, substrate material, and part geometry, with no minimum order quantity for prototyping and low-volume trials. Our in-house engineering team provides free design for manufacturing (DFM) analysis to optimize overmolding processability, reduce production costs, and improve product performance. Lead times for prototyping are as short as 3–7 days, with mass production lead times of 10–25 days depending on order volume.
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Our custom food-grade LSR overmolded products are used across a wide range of industries:
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Choose LSR hardness based on your application requirements:
We support custom sizes for all overmolded products:
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As a professional Hubei LSR products manufacturer, we implement a full lifecycle quality control system from raw material incoming inspection to finished product outgoing testing. All raw materials come with a material safety data sheet (MSDS) and food contact certificate, and we conduct incoming testing for hardness, volatile content, and color consistency before production.
In-process quality checks include hourly inspections of dimensional accuracy, adhesion strength, and surface quality. Finished products undergo 100% visual inspection and functional testing for sealing and adhesion, with batch testing for food contact safety per regulatory requirements.
Our production facility is certified to ISO 9001:2015 quality management systems, and all products meet RoHS 2 and REACH restricted substance requirements. We provide full batch traceability and can provide third-party test reports upon request for regulatory approval of end products. Our Hubei-based manufacturing adheres to Chinese national labor and environmental regulations, ensuring stable, sustainable supply for long-term partnerships.
