Based in Dongguan, Guangdong—China’s premier hub for mold manufacturing—HS specializes in custom high-temp resistant silicone rubber seals engineered for oil/waterproof performance across automotive machinery, home appliances, and electronic devices. Our SR-C01 custom rubber parts are precision-molded to meet the diverse performance demands of industrial and consumer applications, combining material versatility, extreme temperature resistance, and full customization to deliver reliable sealing solutions for businesses worldwide. Whether you require standard silicone rubber seals or bespoke custom rubber parts tailored to unique equipment specifications, our factory-direct capabilities ensure consistent quality, on-time delivery, and cost-effective solutions for manufacturers across sectors.
Core Features of Our Silicone Rubber Seals & Custom Rubber Parts Our silicone rubber seals and custom rubber parts stand out for their industrial-grade performance, material durability, and design flexibility—key traits that make them ideal for automotive, machinery, home appliance, and electronic device applications.First, the material quality of our silicone rubber seals is unmatched. We offer silicone rubber (supplemented with EPDM, NBR, and NR options) with exceptional high-temperature resistance (withstanding temperatures up to 230°C) and low-temperature flexibility (down to -50°C), ensuring silicone rubber seals maintain their sealing integrity in extreme thermal environments. Additionally, our custom rubber parts deliver superior oil/waterproof performance, preventing fluid leakage and environmental contamination in critical equipment components.Second, full customization defines our silicone rubber seals. We offer custom sizes, shapes, and colors per customer’s request, with hardness adjustable from 20~90 ShoreA to match specific application needs—whether you need soft silicone rubber seals for delicate electronic devices or rigid custom rubber parts for heavy automotive machinery. Our molding process achieves a tolerance of ±0.05mm, ensuring a perfect fit for any component.Third, branding flexibility is a hallmark of our custom rubber parts. We provide customized logo printing on silicone rubber seals, allowing brands to align sealing components with their identity while maintaining uncompromised performance.
Competitive Advantages of Our Silicone Rubber Seals & Custom Rubber Parts Choosing our silicone rubber seals and custom rubber parts means partnering with a manufacturer with 20+ years of rubber processing expertise, prioritizing quality, efficiency, and customer-centric service. Flexible Ordering & Fast Prototyping We offer a low MOQ of 500 pieces for silicone rubber seals, making our solutions accessible to small and medium-sized businesses, while our large-scale production capabilities accommodate bulk orders for major manufacturers. Samples of silicone rubber seals are available for testing, with fast turnaround times for custom rubber part prototypes—enabling you to validate fit, performance, and quality before full production. Precision Engineering & Quality Control Every silicone rubber seal undergoes 100% quality inspection before shipment, including dimensional checks, high-temperature resistance testing, and oil/waterproof performance validation. Our advanced molding equipment and over 2000 existing molds ensure consistent production of custom rubber parts, with strict adherence to design specifications to eliminate fit issues and performance failures. Cost-Effective Factory-Direct Pricing As a direct manufacturer, we eliminate middleman markups, offering competitive pricing on silicone rubber seals without compromising material quality or performance. Our one-stop procurement service streamlines the entire process—from design and prototyping to production and delivery—reducing lead times and supply chain costs for custom rubber parts. Technical Expertise & 24/7 Support Our team of rubber engineering specialists provides 7×24 online support for all inquiries related to silicone rubber seals, offering guidance on material selection, hardness adjustment, and customization to ensure optimal performance in your specific application. We leverage our decades of experience to solve complex sealing challenges for automotive, machinery, home appliance, and electronic device manufacturers.
Applications of Our Silicone Rubber Seals & Custom Rubber Parts Our versatile silicone rubber seals and custom rubber parts serve critical roles across diverse industries, thanks to their high-temp resistance, oil/waterproof performance, and customization options:
Automotive Machinery: Silicone rubber seals are used in engine components, transmission systems, and hydraulic lines—their high-temp and oil-resistant properties prevent leaks and ensure reliable operation in the harsh under-hood environment of vehicles. Industrial Machinery: Custom rubber parts seal pumps, valves, and compressors in manufacturing and construction equipment, with water/oil resistance and adjustable hardness to withstand heavy-duty use and extreme operating conditions. Home Appliances: Silicone rubber seals fit refrigerators, washing machines, and ovens—their high-temp resistance and waterproof performance maintain energy efficiency and prevent water/heat leakage in household appliances. Electronic Devices: Soft silicone rubber seals (20~50 ShoreA) protect enclosures of smartphones, laptops, and industrial control panels, providing dustproof/waterproof protection while maintaining electrical insulation for sensitive components. Renewable Energy Equipment: Custom rubber parts are integrated into solar panel enclosures and wind turbine components, with high-temp resistance and weatherability to withstand outdoor conditions and extend equipment lifespan.
At our 10,000-square-meter manufacturing facility in Dongguan, we leverage a team of over 100 skilled professionals to produce silicone rubber seals and custom rubber parts that exceed industry standards. Our commitment to innovation and quality is backed by 20+ product patents and compliance with global certifications like ROHS, ISO 9001, and ISO 14001—validating the safety and reliability of our silicone rubber seals for international markets. We back all custom rubber parts with a 3-year warranty: if unused silicone rubber seals develop quality issues within this period, we offer free returns and replacements. Whether you need standard high-temp resistant silicone rubber seals or fully customized oil/waterproof parts, we are committed to delivering products that combine performance, durability, and value—engineered for the unique demands of your application, built to last.
Product Description
Company Profile
Founded in 2003, Dongguan Huangshi Rubber & Plastic Tech Co., Ltd. is one of the famous silicone and plastic products manufacturers. Our factory is located in Chang'an Town, Dongguan City, enjoying good location and convenient transportation access. Being specialized in silicon mold making,plastic mold making and silicon and plastic products manufacturing, we always try our best to provide you with best-quality products. With a workshop of 6,000 square meters and a serious QC department, we are professional in making all kinds of silicone and plastic cases for cells phones, MP3, MP4 and MP5 players, silicone keyboards, silicone series parts of electronic goods, silicone kitchen accessories and silicone toys. We are sure to make better quality and better price silicone rubber and plastic products for you. Our main foreign trade markets include Southeast Asia, Europe and America. We also provide ODM/OEM products for many national famous companies. In order to satisfy different requirements from our clients, we import raw materials and machines to make our goods reach the standards of RoHS, ISO, SGS and EN71. "Do a good job at first time; do a better job every time" is our tenet. Please don't hesitate to contact us if you have any problem. We must be the one which you can trust in. We look forward to your requirements. Choose us,and we can do better for you!