Based in Dongguan, Guangdong—China’s leading hub for automotive rubber component manufacturing—HS specializes in custom premium automotive silicone gaskets, engineered for reliable sealing in automobile engines and heavy-duty machinery. Our Auto-05 silicone rubber auto gaskets are precision-crafted via moulding processing to meet the stringent performance standards of the automotive industry, combining durable material composition, full customization, and industry-leading certifications to deliver trusted sealing solutions for automotive manufacturers worldwide. Whether you require standard silicone rubber gaskets for engine components or bespoke custom-shaped gaskets for machinery systems, our factory-direct capabilities ensure consistent quality, on-time delivery, and cost-effective solutions tailored to your automotive sealing needs.
Core Features of Our Automotive Silicone Gaskets Our automotive silicone gaskets and silicone rubber auto gaskets stand out for their industrial-grade durability, material versatility, and precision engineering—key traits that make them ideal for automobile engines and machinery applications.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 durability, resisting heat (up to 230°C), oil, coolant, and mechanical wear—critical for maintaining sealing integrity in the harsh under-hood environment of automobile engines. This material composition also ensures silicone rubber auto gaskets remain flexible across extreme temperatures (-40°C to 230°C), preventing cracking or compression set even with prolonged use in machinery systems.Second, full customization defines our automotive silicone gaskets. We offer custom sizes to fit any automobile engine or machinery component, custom shapes tailored to unique sealing requirements, and customized logo printing to align with automotive brand identity. Our moulding processing achieves a tolerance of ±0.05mm, ensuring silicone rubber gaskets create airtight, leak-proof seals for engine blocks, valve covers, and machinery housings—eliminating performance issues caused by ill-fitting gaskets.Third, multi-functional performance is embedded in every silicone rubber auto gasket we produce. Beyond reliable sealing, our gaskets provide vibration dampening and chemical resistance, making them suitable for diverse automotive and machinery applications—from engine cooling systems to hydraulic machinery seals.
Competitive Advantages of Our Automotive Silicone Gaskets Choosing our automotive silicone gaskets and silicone rubber auto gaskets means partnering with a manufacturer with 20+ years of rubber processing expertise, prioritizing quality, compliance, and customer-centric service for automotive applications. Industry-Leading Certification & Quality Control Our silicone rubber gaskets are certified to IATF16949 (automotive industry standard) and ISO 9001/14001, validating their compliance with global automotive manufacturing requirements. Every silicone rubber auto gasket undergoes 100% quality inspection before shipment, including dimensional verification, heat resistance testing, and compression set validation—ensuring zero defects and consistent performance across every batch of gaskets. Flexible Ordering & Scalable Production We offer a MOQ of 1000 pieces for silicone rubber gaskets, making our solutions accessible to small and medium-sized automotive component manufacturers, while our 10,000-square-meter production facility and 2000+ existing molds enable scalable production to meet bulk orders for major automotive brands. This flexibility ensures businesses of all sizes can access premium automotive silicone gaskets without overcommitting to large initial orders. Cost-Effective Factory-Direct Pricing As a direct manufacturer, we eliminate middleman markups, offering competitive pricing on silicone rubber auto gaskets without compromising material quality or precision. 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 your automotive gasket orders. Technical Expertise & 24/7 Support Our team of automotive rubber engineering specialists provides 7×24 online support for all inquiries related to silicone rubber gaskets, offering guidance on material selection (silicone/EPDM/NBR/NR) and gasket design optimization for automobile engines and machinery. We leverage our deep automotive industry knowledge to solve complex sealing challenges, ensuring silicone rubber auto gaskets meet the unique demands of your applications.
Applications of Our Automotive Silicone Gaskets Our versatile automotive silicone gaskets and silicone rubber auto gaskets serve critical roles in automotive and machinery systems, thanks to their durability, precision, and multi-functional performance:
Automobile Engine Components: Silicone rubber gaskets seal engine blocks, cylinder heads, and valve covers—their heat and oil resistance prevent coolant and oil leaks, optimizing engine performance and reducing maintenance costs for automotive manufacturers. Automotive HVAC Systems: Custom-shaped silicone rubber auto gaskets seal air conditioning and heating system components, providing airtight sealing to maintain cabin temperature control and energy efficiency in vehicles. Heavy-Duty Machinery Engines: Our gaskets are adapted for construction and agricultural machinery engines—their durable silicone composition withstands extreme vibration and temperature fluctuations, ensuring reliable sealing in rugged operating conditions. Automotive Fuel Systems: NBR-blended silicone rubber gaskets seal fuel injectors and fuel tank components, resisting gasoline and diesel fuel corrosion to prevent leaks and ensure compliance with emissions standards. Automotive Electrical Systems: Silicone rubber gaskets seal electrical enclosures in hybrid and electric vehicle powertrains—their insulation properties and heat resistance protect sensitive electrical components from moisture and thermal stress.
At our Dongguan manufacturing facility, we leverage a team of over 100 skilled professionals and state-of-the-art moulding equipment to produce automotive silicone gaskets that exceed industry standards. Our commitment to innovation is backed by 20+ product patents, and we back all silicone rubber auto gaskets with a 3-year warranty: if unused gaskets develop quality issues within this period, we offer free returns and replacements. Whether you need custom premium silicone gaskets for automobile engines or reliable sealing solutions for heavy-duty machinery, we are committed to delivering silicone rubber gaskets that combine performance, durability, and value—engineered for the road, 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!