Certified Standards For Silicone Washer
Reliable Silicone Washers Manufacturer in China
Silicone washers are generally soft and flexible ring shaped parts made from elastomeric silicone with a hole in the center. They are typically used with bolts, nuts, and other fasteners. It provides sealing, prevents leaks and holds out dust. In addition, it also acts to distribute the pressure of fasteners on the contact surface so that wear can be reduced and equipment damage minimized. They are mainly used in home appliances, food processing, medical, automobile, electronic, etc. They are especially suitable for the environment are sealing, protection and safety of these areas is important.
Legensilico has 20 years of experience manufacturing silicone washers, exporting worldwide. We offer a wide variety of silicone washers, including silicone flat washers, silicone metal detectable washers, double-sided adhesive silicone washers, over 10 other types. Our silicone washers are made from high-quality organic silicone material, offering excellent tensile strength and tear resistance. Their high elasticity and flexibility allow them to conform tightly to contact surfaces during installation, creating a reliable seal and effectively preventing the infiltration of liquids, gases, or dust. Effectively distribute pressure, preventing damage to equipment caused by excessive stress, and improving its stability and durability.
We offer customizable services. No matter the size, color, or hardness of your silicone washer, we can fit your requirements to your specifications. Let your ideas become reality. Don’t wait, send us your requirements now for the best quote!
Silicone Washers Options Provided by Legensilico
These are the silicone washers we manufactured in these 3 months. You can find the detailed information of which you are interested in.
This kind of silicone flat washer is transparent. It has a thickness ranging from 2mm – 5mm or over( depending on customer’s demand) and an outer diameter of 20mm – 70mm or over. Shore hardness is 40A. The flat design makes it suitable for use in areas with limited space or where a tight fit is required. Widely used in applications where a tight seal is required.
Inner hole diameter are also available according to your specific requirements,
It is a black silicone washer made of high-grade silicone material, the inner diameter holes used are small indeed. Will press down more tightly on the fastener depending on a surface area in which larger forces can act. Equipment will therefore be less at risk of breakage from over tightening or under loosening. Waterproof, dustproof, shock-proof and resistant to corrosion. Best for outdoor equipment, automobiles, ships or other situations in which a seal and or remote environment reduction is needed. It has a Shore A hardness of 50A.
This silicone washer features a countersunk structure design. It is typically used with countersunk screws. The beveled center hole allows the screw head to align flush with the washer surface. This ensures a smooth seal while effectively dissipating the screw’s pressure, protecting the contact surface from damage. Excellent elasticity and tear resistance. The outer diameter is 40mm, and the inner diameter is 10mm. Color and hardness can be customized to your needs.
Our silicone shoulder washers are typically used between screws, bolts, or shafts and mounting holes. They provide insulation, sealing, or isolation. The shoulder extends into the mounting hole, forming a sleeve-like structure. It can prevent metal parts from directly contacting the hole wall. Reduce wear on equipment, prevent short circuits, and provide more stable positioning. This kind of silicone shoulder washer is translucent. We also offer a variety of other colors for you to choose from, including white, black, red, blue, and gray,etc.
This black silicone washer features a double tooth lock structure. Provides excellent anti-loosening, anti-slip, and cushioning properties. It features serrated protrusions on both the inside and outside. These teeth dig into the contact surface when tightening the bolt or nut, increasing friction. Effectively prevents threaded connections from loosening due to vibration, impact, or other factors. Heat-resistant, waterproof, and corrosion-resistant. Widely used in electronic devices, automotive parts, and other outdoor installations requiring anti-loosening. Outer diameter: 200mm, inner diameter: 150mm. Shore hardness: 60A.
This kind of silicone washer is a cup-shaped washer. It has a hole in the center and resembles a shallow cup or groove. The cup-shaped design can wrap around the base of a screw or nut, creating a 360° seal. Effectively prevents the ingress of water, dust, and oil. The groove shape evenly distributes pressure from the fastener, preventing localized stress concentration that could cause equipment deformation. High elasticity effectively absorbs vibrations generated during operation. The outer diameter is 47mm, and the inner diameter is 35mm. The color and hardness can be customized to your needs.
This kind of silicone washer is designed specifically for sealing tap valve seats. It is commonly used in swing or push-down taps in kitchens and bathrooms. Its structure fits snugly against the tap valve seat, preventing water from leaking through the valve core. Flexible and pressure-resistant, capable of withstanding high water pressure without deforming. Highly resistant to hot and cold water, and chemical cleaning agents, and is not prone to hardening and cracking. Reduces noise, absorbing some of the sound of running water when the tap is turned on and off. Size, color, and hardness can be customized to your needs.
This washer is made of silicone sponge foam. It can be slightly compressed to fill gaps between irregular or rough surfaces. Effectively prevents the ingress of air, water, and dust. The porous material effectively absorbs mechanical vibration and shock, protecting equipment components. Operates stable and long-term in temperatures ranging from -40°C to 230°C. It is also suitable for environments requiring thermal insulation or electrical conductivity. It has a Shore A hardness of 30A. This product is red, but other colors are available, such as black, white, blue, and transparent,etc.
This kind of silicone washer features numerous pores. This makes it lightweight and breathable, saving material and cost. The Shore A hardness ranges from 40 to 80 Shore A, adjustable to meet your specific sealing requirements. We offer a variety of colors, including transparent, white, and black, and other custom colors are available. Highly chemically inert and resistant to weak acids and bases. Excellent electrical insulation properties. Usually made in a black color, however, it can be customized according to your specific needs and requirements.
This washer is made by adding metal particles or metal-detectable additives to silicone material. It retains the flexibility, heat resistance, and chemical resistance of silicone while remaining detectable by metal detectors. If the washer is damaged or loose, metal detectors can quickly detect and remove it on the production line. Preventing it from entering the final product. Resistant to grease, oil, acids, alkalis, and cleaning agents. Suitable for environments requiring high-temperature cleaning or low-temperature freezing, such as food processing or pharmaceutical manufacturing.
Both sides of this silicone washer are adhesive. It is easy to install with adhesive backing. Simply peel off the release paper and apply it directly on the target surface. Now you do not need any additional fixing tools. This not only saves your install time, but will also reduce cost of operation. With adhesive on both sides, it can grip firmly onto two contact surfaces at the same time. The washer will not move, and remains right where you placed it. It has a hardness of 40 Shore A. We can also customize the size and color to your requirements.
This is a silicone washer that’s pre-die-cut but doesn’t completely penetrate the backing paper. Supplied in roll form for easy removal as needed. The roll design facilitates mass production, automated lamination, and quick installation, making it ideal for assembly line operations. We offer precise die-cutting. Only cut through the silicone washer layer, leaving the backing paper intact. This ensures each washer is intact and easy to remove, minimizing waste. Has a hardness of Shore 30A. Available in your choice of colors and sizes.
This food grade silicone washer meets FDA and LFGB food safety certifications. Non-toxic, odorless, and safe. Safe for direct contact with food and drinking water. High and low temperature resistant, suitable for hot water, steam, and refrigerated environments. Acid, alkali, and cleaning agent resistant. Suitable for long-term use and easy disinfection. Widely used in food processing, beverage filling, kitchen equipment, and other applications involving direct contact with food or drinking water. Shore A hardness range of 20A to 70A is available.
Why Choose Legensilico Silicone Washers
A professional silicone washers manufacturer with 20 years experience in China
Our silicone washers can maintain excellent working conditions between -40°C and 230°C.
Our silicone washers offer elongation ranging from 90% to 1120%, with elongation affected by processing methods and the choice of hardener.
Our silicone washers offer excellent tear resistance, with tear strengths ranging from 9 to 55 kN/m.
Legensilico has obtained ISO 9001, IATF 16949, and ISO 13485 management system certifications. Our silicone materials are FDA and LFGB certified. Our products are also certified to ISO 14001 environmental standards.
Efficient Manufacturing Process
Legensilico offers both compression molding process and liquid silicone injection molding process to manufacture silicone washers.Compression molding involves placing solid silicone material into a mold and applying high temperature and pressure to vulcanize it. This process is suitable for small and medium batches, simple structures and thicker washers. While compression molding offers lower costs, but more inefficient. If you prefer liquid silicone injection molding, we inject liquid silicone directly into the mold using an injection molding machine for rapid vulcanization. This process is ideal for high-precision, high-volume production, especially for medical-grade and food-grade washers. This makes products with high dimensional accuracy and a smooth surface finish.
High Precision Product We Provide
We manufacture precision steel molds based on the dimensions and structure of your needs. We typically use P20 steel and 718S steel as mold materials. These materials offer excellent mechanical strength and toughness, with a moderate surface hardness, making them both easy to process and wear-resistant. The mold surface is polished to ensure smooth demoulding and obtain high-precision products. Using our CNC machining technology, we can achieve a dimensional accuracy of ±0.1 mm for standard silicone washers and ±0.05 mm for high-precision products.
How We Turn Silicone Into Reliable Products
We support customized silicone products from mold design and material selection to mass production and final quality inspection.
- Manufacturing Process
- Technical Specification
Legensilico provides you with customized services. Just tell us your requirements about the silicone washers you want, our professionals can restore 100% of the details for you.
| Color | transparent, translucent, black, white, grey, red, blue, green, brown, orange, yellow, pink. |
| Inner Diameter | 1.5mm to 200mm |
| Outer Diameter | 3mm to 300mm |
| Thickness | 0.3mm to 20mm |
| Hardness | Shore 20A to 70A |
Metal washers are usually made of metals such as steel, stainless steel, or brass material. Strong and wear-resistant. They perform well in high-pressure and high-intensity applications. The disadvantage is that they do not isolate vibration and noise, and can easily cause resonance in threaded connections. In humid or chemically exposed environments, metal washers may corrode and rust, need additional protection.Silicone washers are made of flexible silicone material. In addition to distributing loads, they also offer excellent sealing, vibration and noise reduction, and great electrical insulation properties. Silicone washers are corrosion-resistant and weather-resistant. They are safe and reliable for use in environments involving water, food, or delicate electronic equipment.If your application requires sealing, insulation, and vibration protection, especially in wet, outdoor, or food-grade environments, silicone washers will be a more suitable choice.
Yes, we can offer both Delivered Duty Paid and Delivered At Place services for you. Whether you need your shipment delivered to a port, a logistics warehouse, or directly delivered to your business address, we can handle the entire process. We handle international shipping, customs clearance, duties, and door-to-door delivery, allowing you to skip the tedious import procedures and receive your shipment easily. Please provide us your delivery address details, including the postal code and country. We will calculate the DDP/DAP shipping costs and provide an estimated delivery time so you can receive your products quickly.
We accept a variety of common vector formats, including PDF, CorelDRAW (CDR), and Adobe Illustrator (AI). As long as your file is a vector image, we can use it directly for printing. We can ensure that images remain sharp and undistorted at any size.
Our silicone washers are widely used in many different industries due to their excellent sealing, cushioning and isolation effects, meeting the diverse needs of different customers. In the home appliance industry, silicone washers can provide excellent sealing and shock absorption for the connection of air-conditioning compressors, the interface between washing machine water pumps and drain pipes. They effectively extend the service life of the equipment. In the food industry, our food-grade silicone washers comply with FDA and LFGB standards. They are safe and reliable, and are suitable for sealing and leak-proofing water dispensers, water purifiers, and various food machinery. In the medical industry, they can be widely used in equipment such as ventilators or anesthesia machines. They have biocompatibility and resistance to high-temperature disinfection, which can ensure patient safety. In the field of industrial machinery or automation equipment, our silicone washers can be widely used for sealing and buffering of pumps, valves, sensors and other equipment. In the automotive industry, they can be used in vehicle interiors and roof racks. Due to their excellent electrical insulation properties, they are also widely used in the electrical and electronics industry, ideal for protecting precision instruments and outdoor electronic equipment.
