Certified Standards For Silicone Seals
Why Choose Silicone Seals Customized At Legensilico
- We manufacture seals using VMQ, FVMQ, HCR, and LSR materials to make a perfect solution for different industrial uses.
- Legensilico can select the molding process to use, like compression molding, extrusion, injection molding and transfer molding, depending on your specific needs.
- In our factory, the hardness of silicone seals can be adjusted easily from 20 Shore A to 80 Shore A to fit perfectly in different environments and conditions.
- We offer silicone seals that can operate from -60 degrees C to 200 degrees C, and even up to 300 degrees C using our special compound systems.
- Silicone seals from Legensilico can also be made out of fluorosilicone compounds, for environments that are exposed to fuels, lubricants, solvents, and other industrial liquids.
- Legensilico silicone seals can also be bonded with metal inserts or can be molded directly onto plastic and metal other components.
Legensilico | Manufacturing Silicone Seals With A Reliable Sealing Performance
For over 20 years of manufacturing silicone products for hundreds of international brands, Legensilico understands that silicone seals for industrial application require materials and structures that will perfectly match the real working conditions. That is why Legensilico manufactures silicone seals based on the requirements of each project, instead of just using the standard catalog. Our R&D team will help you to choose the right silicone material. This also depends on what temperatures the seal might be exposed, pressure it may take, what chemicals it may contact, and the conditions during installation.
Even the method of producing the seal is also carefully selected. For example, we use compression molding for thick and large gasket seals, and extrusion method for sealing profiles used in enclosure systems. The tooling we use is also designed with very tight tolerance that can have consistent production results. These methods are done to make sure that you will receive high-quality silicone seals with no worries about the risks of leakage even in long-term industrial use.
Send us your inquiries now and we’ll be happy to provide you a quote for your silicone seals project!
Sample Options Of Custom Silicone Seals We Can Manufacture
Silicone o-ring seals are usually small round silicone seals that can fit into grooves. Typically, it comes with a thickness of 1-10 mm and sizes from very small up to 200mm or more.
This type of silicone seal can be ring-type or washer-type that can fit inside the water taps to stop leaks. They can be made to match the standard fittings like ½ inch or ¾ inch connections.
We offer special-shaped silicone seals that are custom-molded. It can be made in unique profiles like U, D, or multi-tip designs to perfectly fit into irregular surfaces.
This type of silicone seal is designed to be a self-fusing tape. They are often available in widths like 10-50mm and they are used to wrap tightly around pipes, wires, or other fittings.
Legensilico also offers encapsulated silicone seals, which are enclosed within a protective layer, like metal or fabric-reinforced. Encapsulating the seals is done to add to its strength and durability.
Inflatable silicone seals are soft and hollow silicone rings that can be filled with air or liquid. As the seal expands, it creates a secure and tight seal that easily adjusts in uneven surfaces.
This type of silicone seal are flexible strips or gaskets that can be installed along the edges of doors to block the dust, water, and other particles. It also absorbs the noise effectively.
These strips are usually long and they are made from highly-durable silicone material. It can be cutted to fit precisely on wherever you need to install it.
Silicone foam strip seals are soft and can be compressed. They are made from closed-cell silicone foam, and typically it ranges from 3 to 20mm in thickness and can be made up to several meters in length.
This type of silicone seals are clear and semi-transparent, which makes them ideal for applications where aesthetics matter. Highly visible but also provides a reliable sealing.
Silicone tube seals are one of the most common silicone seals that are used in different industrial settings. Usually they are available in inner diameters (mm-cm).
Silicone seals for butterfly valves are specially shaped sealing that can fit around the valve disc or valve seat. It can be made to match valve sizes from 2-24 inches or more.
Silicone seals with holes are designed with pre-cut openings for screws, bolts, or liquids while still providing a tight seal.
These are designed to fit around the housing of bearings. They help keep the lubricants in and prevent contaminants like dust, water and micro debris from going in.
It features raised ridges which are usually around 1-10mm in thickness and sized to fit standard grooves or openings. The ribbed design also improves grip and compression.
Silicone cap seals are crafted to fit over the ends of tubes, bottles, or pipes. Thay create a tight and leak-proof seal to prevent contamination.
Material Engineering Options
Standard VMQ Silicone CompoundsYou can choose standard silicone compounds that are suitable for general industrial use. They are designed to have excellent flexibility, perform well even in extreme temperatures, and to be resistant to different weather conditions.
Fluorosilicone (FVMQ) MaterialsWe recommend seals made from fluorosilicone materials if you want to use it for systems that are exposed to fuels, lubricants, solvent, and other strong chemicals.
Food-Grade Silicone MaterialsLegensilico also offers seals that are produced using compliant silicone compounds, which are commonly used in food processing and manufacturing systems for food liquids and beverages.
Flame-Retardant Silicone CompoundsIn our factory we can also make silicone seals for electronics enclosures, equipment for transportation, and other industrial systems that require sealing. These seals are designed with improved performance fit for high heat conditions..
Manufacturing Process Production
Compression Molding ProductionThis process is ideal for making thick-section seals, large gaskets, and other structural components that are used in different industrial machinery.
LSR Injection Molding TechnologyAt Legensilico, we have this kind of technology that can produce silicone seals for connectors, sensors, and compact sealing systems. These things often require consistent control of the seal’s dimension.
Silicone Extrusion ManufacturingWe can also manufacture using extrusion methods. This is what we use for continuous sealing strips, for enclosure profiles, and other structures that have longer length.
Insert and Overmolding IntegrationThis process allows the silicone sealing materials to bond directly onto metal or plastic materials which can improve how efficiently it can be installed.
Precision Manufacturing Features for Industrial Silicone Seals
The molds we use are expertly machined with high accuracy to achieve the perfect dimension of seals even in countless cycles of production.
We use temperature and pressure monitoring systems to make sure that vulcanized seals will perform reliably.
At Legensilico, all types of silicone seals go through post-curing processes to improve its resistance and make it much more durable.
We also have deflashing processes to improve the quality and the surface of each silicone seal.
Treatment methods are also done to help reduce friction, which also affects the performance of the silicone seal in terms of how it bonds.
To make the silicone seals integrated securely with metal or plastic structural components, we do a chemical bonding process.
Advanced Silicone Seal Manufacturing Processes
We know that silicone seals for different industrial projects also require different methods of production. It greatly depends on how complex the geometry of a silicone seal, what tolerance is expected, and of course the volume of the production. Our factory supports compression molding for large sealing rings and gaskets. We have LSR injection molding for high-precision connector seals, and machinery for extrusion to make long-profile sealing components. Transfer molding is also available for insert-mounted sealing assemblies. For making flat silicone seals, the most common and cost-efficient solution is to die-cut the silicone sheets. Selecting the right method of manufacturing is very important to reduce the possible risks and achieve the best quality of your silicone seals.
Material Formulation for Industrial Sealing Performance
Silicone seals for industrial use often require customized silicone compounds rather than just a standard grade of a silicone material. At Legensilico, we can adjust the formulations using reinforcing fillers to improve its resistance to tearing, add heat stabilizers if it will be exposed to high-temperature, and mix flame-retardant additives for regulated equipment systems. For electronics, conductive silicone compounds can be developed to achieve the required EMI shielding. We also have low compression-set formulations for sealing systems that carry mechanical pressure for longer periods. With these formulation options, we help you to match precisely how your silicone seal performs with the real conditions of your equipment when operating.
Reliable OEM Silicone Seal Manufacturing Partner
For more than 20 years in industrial silicone manufacturing, Legensilico has helped hundreds of brands around the globe. From early development through volume production, we provide them with engineering-based solutions for sealing. Our team provides guidance on what material is best for your project, helping you in developing the mold, and provides you an overview on what performance can you expect when seals are installed in actual operating conditions. With our experience supplying industrial silicone seals for multiple sectors, we understand how the specific details affect how reliable your product will be. This also allows us to manufacture silicone seals in scale, while being consistent on the quality of the product.
We manufacture silicone seals used in pumps, valves, automation equipment, connectors, HVAC systems, and other industrial enclosures. These applications require seals with a consistent method of compression, accurate dimensions, and resistance to harsh operating conditions. Our production systems can produce both small silicone seals and large structural gaskets that are used in different types of industrial machinery.
For industries that want silicone seals with a specific performance, we also supply silicone seals that are made out of food-grade compounds. Not only that, we can also make medical-grade formulations and flame-retardant materials that are often used in electronics and transportations systems. Legensilico has a dedicated R&D engineering team that helps clients select the appropriate options depending on what they need.
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
Reviews From Our Clients Worldwide
“Last week we received our fluorosilicone O-rings orders from Legensilico for our fuel injectors. And I’ m really satisfied with the quality. The hardness that we wanted are all perfectly applied to each silicone seal. It also improves our products because all products we received match perfectly with the approved reference parts. We are looking forward to more years of partnership with them.”
Michael BauerSenior Sourcing Manager Of An Automotive Fuel System Supplier“We developed an enclosure sealing strip for our IP67 outdoor lighting housing project. I really appreciate how their team helped us throughout the process, and they recommended making some adjustments to improve the stability of silicone seals under UV exposure. We tried testing them and all orders we received passed our environmental chamber testing. Legensilico is truly a trusted partner!”
Laura FischerProduct Development Engineer
We can make silicone seals from VMQ standard silicone, fluorosilicone, food-grade silicone, medical-grade silicone, and flame-retardant silicone materials.
We can customize the hardness of silicone seals that you will request. Usually, it ranges from 20 Shore A to 80 Shore A. It depends on how much pressure it will seal and the conditions where it will be installed.
Yes, of course. Legensilico supports full custom manufacturing based on 2D drawings, 3D files, or the samples you provided for reference.
Yes. Silicone can be bonded directly onto metal or plastic components.
In Legensilico’s factory, we support compression molding, LSR injection molding, extrusion, transfer molding, and die-cut depending on the structure of the silicone seal you need.
Silicone Tubing
Silicone Vibration Dampers
Silicone Protective Covers
