Based in Dongguan, Guangdong—China’s leading hub for automotive rubber component manufacturing—HS specializes in tailored fit custom silicone rubber gaskets, engineered as antifreeze-resistant, waterproof seals for automotive cooling and HVAC systems, including radiators and industrial electrical equipment. Our EE-917-C5 rubber gasket (a core silicone rubber product) is precision-crafted via compression moulding to meet the stringent performance standards of the automotive industry, combining material versatility, full customization, and multi-function performance to deliver reliable sealing solutions for manufacturers worldwide. Whether you require standard silicone rubber gaskets for industrial electrical equipment or bespoke antifreeze-resistant seals for automotive radiators, our factory-direct capabilities ensure consistent quality, on-time delivery, and cost-effective solutions tailored to your automotive cooling and HVAC needs.
Core Features of Our Silicone Rubber Gaskets Our silicone rubber gaskets and silicone rubber products stand out for their antifreeze resistance, waterproof performance, and tailored fit design—key traits that make them ideal for automotive cooling/HVAC systems, radiators, and industrial electrical equipment.First, the material quality of our silicone rubber gaskets is unmatched. We utilize premium silicone rubber (supplemented with EPDM, NBR, and NR options) that delivers exceptional antifreeze resistance to automotive coolants and glycol-based fluids, while also offering 100% waterproof sealing for radiators and HVAC components. This formulation, paired with adjustable hardness (20~90 ShoreA), ensures silicone rubber gaskets maintain flexibility and structural integrity across extreme temperatures (-40°C to 230°C) in automotive and industrial environments.Second, tailored fit customization defines our silicone rubber gaskets. Our compression moulding process achieves a tolerance of ±0.05mm, ensuring custom-sized and custom-shaped silicone rubber gaskets create leak-proof seals for automotive radiator necks, HVAC system hoses, and industrial electrical equipment enclosures. We offer custom colors per customer’s request and customized logo printing, aligning silicone rubber products with brand identity without compromising sealing performance.Third, multi-function durability is embedded in every silicone rubber gasket we produce. The robust material composition resists wear, chemical degradation (from antifreeze and HVAC refrigerants), and mechanical vibration, extending the service life of automotive cooling components and industrial electrical equipment accessories while reducing maintenance costs.
Competitive Advantages of Our Silicone Rubber Gaskets Choosing our silicone rubber gaskets and silicone rubber products means partnering with a manufacturer with 20+ years of rubber processing expertise, prioritizing quality, customization, and customer-centric service for automotive and industrial applications. Tailored Fit Customization & Scalable Production We offer a MOQ of 500 pieces for silicone rubber gaskets, making our solutions accessible to small and medium-sized automotive component suppliers, while our 10,000-square-meter production facility and 2000+ existing molds enable scalable production to meet bulk orders for major automotive brands. Custom sizes, shapes, and hardness (20~90 ShoreA) for silicone rubber gaskets are available to fit any automotive cooling/HVAC component or industrial electrical equipment part. Rigorous Quality Control & Performance Testing Every silicone rubber gasket undergoes 100% quality inspection before shipment, including antifreeze resistance testing, waterproof validation, dimensional verification, and hardness calibration—ensuring zero defects and adherence to automotive industry standards. Our strict quality control processes guarantee silicone rubber products meet the precision and durability benchmarks required for radiators, HVAC systems, and industrial electrical equipment. Cost-Effective Factory-Direct Pricing As a direct manufacturer, we eliminate middleman markups, offering competitive pricing on tailored fit silicone rubber gaskets without compromising antifreeze resistance or waterproof performance. Our one-stop procurement service streamlines design, prototyping, and production, reducing lead times and supply chain costs for your automotive and industrial electrical equipment component orders. Technical Expertise & 24/7 Support Our team of automotive rubber engineering specialists provides 7×24 online support for silicone rubber gasket inquiries, offering guidance on material selection (silicone/EPDM/NBR/NR) and hardness optimization for automotive cooling/HVAC systems and industrial electrical equipment. We leverage deep automotive industry knowledge to solve complex sealing challenges, ensuring silicone rubber gaskets deliver optimal antifreeze and waterproof performance.
Applications of Our Silicone Rubber Gaskets Our versatile silicone rubber gaskets and silicone rubber products serve critical sealing roles in automotive and industrial settings, thanks to their antifreeze resistance, waterproof design, and tailored fit:
Automotive Radiators: Silicone rubber gaskets seal radiator tanks and inlet/outlet hoses—their antifreeze resistance prevents coolant leaks, while waterproof performance protects against external moisture, optimizing engine cooling system efficiency. Automotive HVAC Systems: Custom-shaped silicone rubber gaskets seal air conditioning compressors and heater cores—their adjustable hardness (20~90 ShoreA) ensures a tight fit, and waterproof design prevents refrigerant leaks in climate control systems. Industrial Cooling Equipment: Silicone rubber products act as gaskets for industrial electrical equipment cooling units—their antifreeze resistance (adapted for industrial coolants) and waterproof performance maintain safe operating temperatures for high-voltage equipment. Commercial Vehicle Cooling Systems: EPDM-blended silicone rubber gaskets are adapted for truck and bus radiators—their heavy-duty antifreeze resistance withstands extended use, and tailored fit reduces maintenance downtime for fleet vehicles. HVAC for Industrial Electrical Panels: Silicone rubber gaskets seal HVAC vents on industrial electrical enclosures—their waterproof design prevents moisture damage to sensitive electronics, while multi-function performance adapts to varying temperature conditions.
At our Dongguan manufacturing facility, we leverage a team of over 100 skilled professionals and state-of-the-art compression moulding equipment to produce silicone rubber gaskets that exceed industry standards. Our commitment to quality is backed by ISO 9001 and ISO 14001 certifications, validating the reliability and sustainability of our silicone rubber products for international automotive and industrial markets. We back all silicone rubber gaskets with a 3-year warranty: if unused silicone rubber products develop quality issues within this period, we offer free returns and replacements. Whether you need tailored fit antifreeze-resistant gaskets for automotive radiators or waterproof seals for industrial electrical equipment HVAC systems, we deliver silicone rubber gaskets that combine performance, durability, and value—engineered for the road, built to seal.
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!