Custom Silicone Rubber Gaskets & Seals Manufacturer from China

Yuanyi is a Chinese manufacturer that provides custom-molded silicone rubber gaskets and seals to customers in multiple industries. With more than ten years of rich molding experience, professional customization knowledge, and state-of-the-art equipment, we can help you develop and manufacture gaskets and seals that meet specifications or tolerances or even exceed customer expectations, and find the perfect silicone rubber gasket solution for your product application.

There are three general molding processes for making silicone rubber gaskets and seals: Silicone compression molding, liquid rubber silicone injection molding, and transfer molding. In-house at Yuanyi, we typically use compression molding methods and different silicone elastomers to produce products that meet the specific requirements of the working environment of multiple industry applications. These elastomer compounds can be silicone, fluorosilicone, food-grade silicone, flame retardant silicone, high-temperature silicone, or other custom silicones. They can be clear or any custom color. Typically hardness is 25-80 durometer, Shore A.

Custom food grade siicone rubber seal for coffee machine

Why choose Silicone Rubber (VMQ)?

Silicone rubber is a low-cost gasket material with excellent compression set resistance under working conditions in many industries. It is a high-performance elastomer that can withstand changes in performance or damage caused by extreme temperatures. Therefore, our silicone rubber gaskets and seals can be used for a long time in a wide temperature range (-55~205 ℃) and maintain their original performance. Compared with dimethyl silicone rubber, silicone rubber containing a small amount of vinyl has better aging and compression set resistance. Silicone rubber materials are also resistant to ozone, ultraviolet rays, fungal growth, moisture, chemical corrosion, and environmental exposure. The low compression set and long service life of silicone make it the best choice for applications in various industries.

Silicone Rubber gaskets and seals Manufacturing Process

Manufacturing custom silicone rubber gaskets and seals involves raw material selection, molding, vulcanization, and quality control. etc. Here is the entire manufacturing process of custom silicone rubber gaskets and seals:

Raw material selection

The first step in manufacturing silicone rubber gaskets and seals is to select raw materials of suitable specifications and grades. Common silicone rubber materials include high-quality silicone, food contact grade, high-temperature silicone, fluorosilicone, and flame retardant silicone. According to the application environment and requirements, select materials with high-temperature resistance, chemical corrosion resistance, and other characteristics.

Mold design

After receiving the complete 3D drawing or sample, the mold is customized. Depending on the size of the product or the expected production capacity, the number of mold cavities can be from a few to hundreds.

Mold making

The internally approved design drawings are compiled into the CNC mold opening program to start mold making.

Rubber mixing

Put the raw rubber and other required additives into the rubber mixer for kneading. These additives can be vulcanizers, masterbatches, etc. The general mixing time is about 30 minutes.

Cutting

Cut the uniform silicone rubber into the required size according to the placement requirements of the internal production specifications. The weighted strip rubber must be placed on the wake-up rack for a while. To ensure the cleanliness of the raw materials, the front and back of the raw materials must be covered with PE protective film.

Molding

Put or inject the silicone material into the preheated mold for molding. This process involves heating, exhausting, and holding the mold.

Deburring

After molding, the product is sent to the post-process department for trimming. This process can be completed by hand or by punching machine.

Cleaning and drying

Products are screened manually or by machine. Qualified products will be cleaned, such as surface dust, burrs, etc. The cleaned products are placed in the drying equipment inside for drying.

100% inspection

The quality inspection department visually inspects the quality of the finished product. They pick out unqualified products such as dirty, missing, broken, etc., and place them in the scrap area.

Packaging

Qualified products are packaged using general or customer-specific specifications.

Benefits of our silicone rubber gaskets and seals

High and low-temperature resistance

Silicone material has excellent high temperature resistance, which enables our silicone rubber gaskets and seals to remain elastic and stable in extremely high temperature environments without deformation. At the same time, they can maintain their initial flexibility under low temperature conditions.

Excellent elasticity and softness

With excellent elasticity and softness, silicone rubber gaskets and seals can quickly return to their original shape after compression.

Good insulation and sealing performance

Silicone has good waterproof and electrical insulation properties, making silicone rubber gaskets and seals have good waterproof and electrical insulation properties, which can effectively block water vapor and liquid from penetrating the equipment and meet the most stringent UL flame retardant grade requirements.

Longer service life.

The silicone rubber gaskets and seals we produce have high resistance to ultraviolet rays, ozone, and chemicals, can maintain physical properties in harsh outdoor environments, and have a longer service life.

Applications of our silicone rubber gaskets and seals

Consumer electronics and equipment

Silicone rubber gaskets and seals are suitable for sealing key parts such as battery compartments and interfaces to prevent water molecules and dust from invading the equipment. Common applications are mobile phones, cameras, and other electronic devices.

Industrial machinery and equipment

Silicone rubber gaskets and seals have waterproof and dustproof properties. Therefore, they are very suitable for use in key parts such as interfaces, valves, and pipes for industrial machinery, and equipment.

Automotive industry

Excellent sealing performance makes silicone rubber gaskets and seals widely used in automobile engine sealing, parking space component sealing, etc.

Medical industry

Since silicone rubber gaskets and seals are non-corrosive, stable in harsh environments, and biocompatible, they are often used in the medical industry to protect precision instruments.

Food industry

Silicone rubber gaskets and seals meet food-grade standards and can contact food. They are often used as sealing materials for seals of various interfaces of coffee machines.

Yuanyi's Advantages

We have worked with Fortune 500 and startup companies in various industries around the world to meet all their custom specifications and tight tolerance requirements.

Yuanyi has been certified by ISO 9001:2015 and adheres to this quality management system to ensure that your large and small orders meet the initial specifications and even beyond your customers' expectations.

Once we understand your custom specification material and molding process requirements, the quotation will be sent to your email within 24 hours.

Our professional design team will provide customized experience in multiple industries and expertise in silicone materials when communicating with your engineers to help you find a solution that meets your product's specific requirements.

How to Start Your Custom Silicone Rubber Gaskets and Seals?

Temperature: What temperature range is it exposed to?

Special applications and working environments: How much and often is it exposed? Resistance to UV, chemicals, and solvents?

Function: Sealing or protection?

Flame retardancy: What flame retardancy level is required?

Communicate with our engineers to achieve the silicone rubber gasket design you want. Our professional engineering team can recommend the best performance and lowest cost production method for you, and our experienced engineers can help you optimize the gasket design to get the best results.

Custom Silicone Rubber Gaskets & Seals Manufacturer from China

Why choose Silicone Rubber (VMQ)?

Silicone Rubber gaskets and seals Manufacturing Process

Benefits of our silicone rubber gaskets and seals

Applications of our silicone rubber gaskets and seals

Yuanyi's Advantages

How to Start Your Custom Silicone Rubber Gaskets and Seals?

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