Based in Dongguan, Guangdong—China’s leading hub for industrial silicone sealing components—HS specializes in custom silicone seals (rubber gaskets), engineered as high-pressure, alcohol-resistant, and easy-to-sterilize solutions for fermentation tanks, filling machines, and industrial electrical equipment. Our EE-922-C1 rubber gaskets are precision-crafted via compression moulding from silicone rubber (supplemented with EPDM/NBR/NR), with 20~90 ShoreA adjustable hardness, customizable sizes/shapes/colors, a 500-piece MOQ, branded logo integration, and full multi-functional performance to meet the stringent needs of beverage, pharmaceutical, and industrial manufacturers worldwide. Whether you require heavy-duty silicone seals for fermentation tanks or precision gaskets for filling machines, our products combine alcohol resistance, sterilization compatibility, and custom precision to optimize industrial processing reliability.
Core Features of Our Rubber Gaskets (Silicone Seals) Our rubber gaskets stand out for their alcohol resistance, high-pressure performance, and easy-to-sterilize design—key traits that make them ideal for fermentation tanks, filling machines, and industrial electrical equipment applications.First, chemical and alcohol resistance define our rubber gaskets: Premium silicone rubber resists degradation from high-concentration alcohol (up to 95% ethanol), fermentation byproducts, and cleaning agents (caustic soda, peracetic acid), while maintaining structural integrity in acidic/alkaline fermentation environments. The material also delivers high-pressure sealing (up to 10 bar) critical for fermentation tank operations, preventing leaks of valuable fermented products.Second, custom compression moulding precision is central to our rubber gaskets. Our compression moulding process achieves a tolerance of ±0.03mm, enabling customized sizes (from small filling machine nozzles to large fermentation tank lids) and complex shapes (irregular flange gaskets, multi-port seals) to fit unique industrial equipment geometries. With 20~90 ShoreA hardness tuning, we offer soft gaskets (20~40 ShoreA) for flexible filling machine seals and rigid gaskets (70~90 ShoreA) for high-pressure fermentation tank lids.Third, easy-to-sterilize durable design is embedded in every rubber gasket. The non-porous silicone surface is compatible with all industrial sterilization methods (autoclaving, EO gas, UV, chemical sanitization) without degradation, while resisting compression set and temperature fluctuations (-40°C to 230°C)—ensuring long service life and consistent performance across repeated sterilization cycles.
Competitive Advantages of Our Rubber Gaskets Choosing our rubber gaskets means partnering with a manufacturer with 20+ years of compression moulding expertise, prioritizing customization, chemical resistance, and scalability for industrial processing clients. Alcohol/High-Pressure Resistance & Rigorous Quality Control Every rubber gasket undergoes 100% quality inspection, including alcohol immersion testing, high-pressure sealing validation, sterilization compatibility trials, dimensional precision checks, and hardness calibration (20~90 ShoreA). Our strict quality control ensures consistent performance across all batches, meeting global food/beverage/pharmaceutical industry standards and eliminating leak risks in fermentation tanks and filling machines. Customization Flexibility & Scalable Production We offer a 500-piece MOQ for rubber gaskets, catering to small craft beverage producers and lab-scale fermentation setups, while our 10,000-square-meter production facility and automated compression moulding lines enable bulk orders for major industrial filling machine and fermentation tank OEMs. Full customization support includes custom sizes, shapes, hardness levels, colors, and logo branding—with free samples available to validate fit and performance before bulk production. Cost-Effective Factory-Direct Pricing As a factory-direct manufacturer, we eliminate middlemen to offer competitive pricing on custom silicone seals (rubber gaskets) without compromising alcohol resistance or sterilization compatibility. Our streamlined compression moulding process reduces lead times by 25% compared to industry averages, ensuring on-time delivery for fermentation tank and filling machine production schedules. Technical Expertise & Industrial Processing Support Our team of silicone engineering specialists with beverage/pharmaceutical processing experience provides 24/7 support—from material selection guidance (e.g., silicone for alcohol resistance, EPDM for outdoor equipment) to mould design optimization for compression moulding efficiency. We leverage deep knowledge of fermentation and filling processes to refine gasket performance, ensuring optimal sealing for high-pressure, alcohol-rich environments.
Applications of Our Rubber Gaskets Our versatile rubber gaskets serve critical sealing roles across industrial processing equipment, thanks to their alcohol resistance and easy-to-sterilize design:
Fermentation Tanks: 70~90 ShoreA rubber gaskets seal tank lids, manways, and sampling ports—high-pressure resistance withstands fermentation gas buildup, alcohol resistance prevents degradation from beer/wine/spirit production, and easy sterilization maintains hygiene. Filling Machines: 20~40 ShoreA rubber gaskets seal nozzle heads and product lines—flexible hardness ensures precise filling control, alcohol resistance protects against beverage spills, and easy cleaning suits high-speed production lines. Beverage Processing Pumps: Custom-shaped rubber gaskets seal pump housings and impeller shafts—alcohol resistance adapts to beer/wine transfer, high-pressure performance optimizes flow rates, and durability reduces pump maintenance downtime. Pharmaceutical Fermenters: Silicone rubber gaskets seal bioreactor lids and port connections—easy sterilization meets pharmaceutical hygiene standards, chemical resistance protects against fermentation media, and custom sizes fit lab/industrial-scale fermenters. Industrial Capping Machines: 50~60 ShoreA rubber gaskets seal capping heads for bottled beverages—alcohol resistance withstands product contact, consistent hardness ensures secure caps, and custom shapes fit diverse bottle neck designs.
At our Dongguan manufacturing facility, we adhere to ISO 9001 quality standards and eco-friendly compression moulding practices (recyclable silicone scrap, low-energy production) without compromising product performance. We back all rubber gaskets with a 3-year warranty against manufacturing defects, and offer lifetime technical support for custom fermentation tank and filling machine seal designs. Whether you need high-pressure seals for fermentation tanks or precision gaskets for filling machines, we deliver rubber gaskets that combine chemical resistance, sterilization compatibility, and value—engineered for industrial processing, 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!