Certified Standards For Silicone Grommets
Legensilico - Reliable Silicone Grommets Supplier in China
Legensilico is a silicone grommet manufacturer with 20 years of experience.
Whether you are in the automotive, medical, food processing, construction, or power engineering industries. No matter if you need them for equipment protection, fluid sealing, or vibration reduction, we can offer a wide variety of high-quality silicone grommets, including blind hole round grommets, oval grommets, semicircle grommets, and stepped grommets,etc.
Our silicone grommets are highly heat-resistant and maintain their performance even in operating environments as high as 220°C. Safe and non-toxic, complying with FDA, LFGB, and UL standards. Weather-resistant and chemically inert.
We also provide custom services. We can customize any color, thickness, hardness, inner or outer diameter to your specifications. Just send us your design or requirements, and we will fully detail and provide you with a satisfying silicone grommet solution.
Contact us now for the best quote!
Silicone Grommets Manufactured by Legensilico
These are the different kinds of silicone grommets we manufactured in 3 months. You can search the product you are interested in and see the detailed information.
Our silicone open grommets are open at the top, allowing cables or wires to pass through directly. Compared to blind silicone grommets, they are available in a wider range of sizes. They are often used for projects where the wire diameter is known. Heat-resistant and weather-resistant. Widely used in the electronics industry, effectively protecting and extending the life of cables or wires.
This kind of silicone blind hole grommet is closed, with a hole that is permanently blocked or unused for extended periods. Heat and chemical resistance. Provides a strong seal and strong protection. No adhesives or other fasteners are required. It can be positioned securely on the equipment. Sizes and colors can be customized to meet your needs.
Our semi-blind silicone grommet features a thin film or tear-off film in the grommet center. Provides sealing functionality and allows for cable routing at the same time. If your equipment has holes that are currently unused but may require cable routing in the future, I recommend this semi-blind grommet option. Provide both sealing and open penetration. You can choose from hardness levels ranging from 30 to 40 Shore A.
This silicone grommet is D-shaped. This unique design structure makes it easier to put around panel edges or through special holes. Excellent tear resistance. Available from 30A to 50A in hardness. We offer black, white, gray and blue color options. Commonly used in electrical applications for cable protection and management.
This is a silicone grommet with an oval outer ring and a longitudinal opening in the center. Made from environmentally friendly silicone material. Maintains high elasticity even at temperatures up to 220°C. Suitable for openings in narrow and long structures. Compared to round silicone grommets, it assembles quickly, conveniently and has a flexible installation.
This is an oval-shaped silicone grommet with no central hole. It’s easy to install and snaps directly into the oval hole of your equipment. Excellent sealing and protection. UV and ozone resistant, suitable for long-term use in outdoor industrial equipment.
Our silicone blind rectangular grommets feature an overall rectangular structure with no through-holes in the center. Soft, highly elastic, and heat-resistant. They are designed to seal rectangular openings in equipment panels, housings, or mounting plates. Easy to install and provide excellent sealing. We can customize colors and sizes to your needs.
This conical-shaped perforation seal protector is made of highly elastic silicone material. Due to its unique structure and thick wall, it achieves excellent sealing. The size and color can be customized to meet your needs. Widely used in applications requiring high sealing performance.
This stepped silicone grommet can accommodate cables or wire harnesses of varying diameters. You can cut the steps to fit the cable diameter, allowing for flexible installation.
We offer gray, white, and black colors for you to choose from. We also offer custom sizes and hardness options.
This silicone grommet features a standard round grommet on one side, and a sleeve-shaped flexible tube extending from the other side. The sleeve portion can cover the cable passing through the hole for a certain distance, effectively protecting the cable from damage during operation. High elasticity and flexibility. Heat-resistant and provides excellent sealing.
This kind of silicone grommet has multiple holes, specially designed for routing multiple cables, hoses, or wires simultaneously. Available with 4, 6, 8, or 10 holes. Sizes can be customized to meet your needs. Each hole can be the same size or different. Widely used in industrial, electrical, or communications systems requiring high-density routing or sealing multi-wire interfaces.
This kind of silicone grommet is made from FDA-grade silicone material mixed with metal particles. Easily detectable by metal detectors. This food-safe blue color is highly visible. Excellent sealing performance, heat-resistant, and abrasion-resistant. Also can withstand multiple high-temperature steam sterilizations.
Our low profile silicone grommet can be manufactured in very small sizes, with an inner diameter as small as 1mm. Resistant to high temperatures, chemicals, and oxidation. We offer a variety of vibrant colors, including blue, orange, and yellow for you to choose. It takes up very little space, making it ideal for sealing holes in small devices.
Our food-grade with transparent color silicone grommet is FDA-approved. Heat-resistant, odorless, safe and non-toxic. Ideal for use with fermenter airlocks and straws, creating a perfect seal. It can prevent insects, bacteria, or other gases, liquids entering the fermenter, helping to keep the food safe.
Professional Manufacturing Process
First, select the solid or liquid silicone materials based on your specific needs. If necessary, then add FDA-grade color masterbatch, flame retardants, or metal detection particles to the silicone. Through high-temperature compression molding or injection molding, the silicone is quickly formed in precision molds. After demolding, the grommets need to be CNC deburred to ensure accurate size and smooth edges. For food or medical applications, post-vulcanization treatment is also required. In the end, we will make quality inspections on manufactured silicone grommets to ensure each one meets the standards.

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, our professionals can 100% restore the details for you.
| Hardness | Shore 10A to 70A |
| Color | Transparent, translucent, white, blue, black, gray, yellow, red, green or specific Pantone color. |
| Inside Diameter | 1mm to 30mm |
| Outside Diameter | 2mm to 60mm |
| Groove Diameter | 1mm to 50mm |
| Groove Width | 0.5mm to 30mm |
| Overall Thickness | 3mm to 20mm |
| Number of Holes | 4,6,8,10 |
We are so glad to help you design your logo or product packaging. We have an experienced and creative team of professional designers. We can provide a recognizable and appealing visual design based on your brand positioning, market needs, and product style. Whether you require a simple, elegant industrial logo or colorful, eye-catching packaging, we all can do it. To facilitate the design work, please provide as much detailed information as possible, including your reference style, color palette preferences, preliminary concepts or sketches, specific elements you want to incorporate into the design, and specific printing process requirements. We can also provide you multiple drafts, to ensure the final design perfectly fits your brand image.
Our silicone grommets are widely used in various industries. The most widely used industry is electrical, electronics, and communications equipment. They can effectively protect cables and wires passing through electronic equipment panels or control cabinets. In the automotive and rail transportation industries, our grommets are often installed on engine interfaces, providing excellent waterproof and dustproofing. Our food-grade silicone grommets are also ideal for sealing food fermentation tanks or protecting puncture holes in other food production lines. Besides, our grommets are also widely used to protect small wire holes in home appliances such as audios or chargers, enhancing safety and aesthetics.





















