Are you looking for the best custom silicone gasket factories in China? If so, you’re in the right place. In this article, we’ll compare some of China’s top manufacturers, highlighting their strengths, product ranges, and what sets them apart. Let’s dive into the world of silicone gaskets and find the perfect partner for your business needs.

Custom Silicone Rubber Gaskets & Seals Manufacturer

Product Details: Hongju manufactures high-quality silicone rubber gaskets and seals, catering to various industries such as marine, automotive, engineering, defense, food, mining, and electrical. These gaskets offer excellent non-stick and electrical insulation properties, maintain flexibility and compression set at low or high temperatures, and provide resistance to water, weathering, and oxidation. They are approved for use with potable water up to +85°C and comply with FDA food contact regulations. The manufacturing process includes design confirmation, die-cut mold creation using CNC machines, punching from silicone or rubber sheets, inspection, and packaging. Hongju uses state-of-the-art CNC machinery to produce custom-made products according to customer

specifications.

Pros:
– Excellent non-stick and electrical insulation properties
– Maintains flexibility and compression set at low or high temperatures
– Resistant to water, weathering, and oxidation
– Approved for use with potable water up to +85°C
– Complies with FDA food contact regulations
– Custom-made products using state-of-the-art CNC machinery
– Competitive pricing and exceptional after-sales service
– Rapid prototyping available within 3-5 work days
– Low Minimum Order Quantity (MOQ)
– ISO 9001 certified and compliant with CE, SGS, REACH, and ROHS Directive require…

Cons:
– No specific cons mentioned on the website
– Production cycle can vary from 9-15 workdays depending on order quantity and com…

China All Types Silicone Gasket Manufacturer & Supplier

Product Details: Silicone gaskets are made from high-quality solid silicone rubber compounds. They are available in various hardness levels (40° | 50° | 60° | 70° | 80°) and colors (White | Red | Black | Custom). These gaskets are resistant to high temperatures (60°C to +200°C) and chemicals, while remaining flexible at low temperatures. They come in raised & full face, round, square, and rectangular shapes. Applications include food, pharmaceutical, high voltage insulation, oven gaskets, autoclave gaskets, manway, and valve cover gaskets. JinSeal also supplies closed & open cell silicone sponge & foam gaskets, as well as fiberglass reinforced, food &

translucent grade, high strength, and flame retardant silicone rubber.

Pros:
– Excellent aging resistance, tensile strength, elongation, tear resistance, ozone…
– High temperature and chemical resistance while maintaining flexibility at low te…
– Wide range of applications including food, pharmaceutical, high voltage insulati…
– Available in various hardness levels and colors.
– Good stability and increased service life.

Cons:
– No specific cons mentioned in the provided source.

Silicone Gasket Manufacturer and Supplier in China

Product Details: Weprofab offers silicone gaskets in all standard sizes, hardness, colors, and configurations. These gaskets are designed to meet various industry certifications and application requirements. They are perfect for manufacturing high-strength gaskets and seals, and they exhibit excellent elongation and resistance features. The silicone gaskets are produced with strict quality control, including raw material inspection, product inspection, mass production control, and pre-shipment inspection. Weprofab also provides certifications such as ISO9001, CE, and RoHS to ensure compliance with international quality standards.

Pros:
– Available in all standard sizes, hardness, colors, and configurations
– Meet various industry certifications and application requirements
– Excellent elongation and resistance features
– Strict quality control at every production stage
– Compliant with international quality standards (ISO9001, CE, RoHS)

Cons:
– No specific cons mentioned on the website
– May require additional customization which could add complexity and cost

Silicone Gaskets – Custom Silicone Parts

Product Details: NEWTOP Custom Silicone offers top-of-the-line die cut and molded silicone rubber gaskets. These gaskets are designed for use in various industries globally. They are produced using different molding techniques such as injection molding, compression molding, and extrusion molding. The gaskets can be customized to meet specific requirements, including various sizes, shapes, and surface treatments. NEWTOP ensures high-quality products through rigorous testing procedures, including visual inspection, statistical sampling, dimensional measurements, material evaluations, and mechanical testing.

Pros:
– High-quality and reliable products that meet industry standards
– Customizable to fit specific application needs
– Durable and resistant to extreme temperatures
– Versatile and used in multiple industries such as automotive, medical, and indus…
– Strict quality control measures to ensure safety and reliability

Cons:
– Injection molding can be more expensive due to equipment and tool costs
– Compression molding may not be as effective for large volume production
– Requires proper installation and handling to avoid common mistakes such as incor…

Custom Silicone Seals Manufacturer in China

Product Details: LegenDay silicone seals are made from 100% organic silicone and are food-grade. They exhibit excellent resistance to heat, chemicals, aging, ozone, fungal growth, and water. These seals have outstanding compression set, tear strength, elongation, and tensile strength. They are durable, leak-proof, airtight, and thicker, with a groove design. The seals can be customized in terms of material, color, dimension, grade, and packaging. They are suitable for various industries including pharmaceuticals, aerospace applications, aggressive chemical processing, oil and gas recovery, and semiconductor wafer fabrication. LegenDay uses cutting-edge equipment such as cut machines, mixing machines, and more to ensure precise dimensions and

shapes.

Pros:
– Excellent resistance to heat, chemicals, aging, ozone, fungal growth, and water
– Outstanding compression set, tear strength, elongation, and tensile strength
– Durable, leak-proof, airtight, and thicker with a groove design
– Customizable in material, color, dimension, grade, and packaging
– Suitable for various industries including pharmaceuticals, aerospace, and more
– High-density, self-extinguishing, and good mechanical properties
– Suitable for hygienic applications

Cons:
– No specific cons mentioned, but high initial and ongoing equipment investment co…

China Silicone Gasket Manufacturers, Suppliers, Factory

Product Details: Silicone rubber gaskets are made from high-quality silicone compounds and are available in various grades and hardness levels. They can be manufactured through die cutting, waterjet cutting, or molding processes. These gaskets offer a wide operating temperature range, typically from -80°F to +600°F, and are resistant to UV, ozone, and weathering. They are available in different durometer ratings (10A to 70A) and can be customized to meet specific application requirements.

Pros:
– High temperature resistance up to 600°F
– Excellent resistance to UV, ozone, and weathering
– Good chemical resistance
– Maintains flexibility in low temperatures
– Available in various hardness levels and custom shapes
– Excellent sealing capabilities and durability
– Compliant with various industry standards (FDA, AMS, MIL, etc.)

Cons:
– Higher cost compared to other gasket materials
– May not be suitable for applications requiring high tensile strength
– Can be prone to compression set if not properly selected for the application
– Special handling may be required for certain grades

China Airtight Box Silicone Gasket

Product Details: The airtight box silicone gasket is made from 100% food-grade silicone, which is BPA free, PVC free, and Phthalate free. It has certifications from FDA, LFGB, RoHS, and SGS. The gasket is designed for use in food containers, lunch boxes, storage boxes, hermetic boxes, and fresh-keeping boxes. It is available in various colors and sizes, and the material hardness can be customized between 50-70 Shore A. The gasket operates within a temperature range of -40°C to 260°C and is resistant to UV, ozone, and extreme weather conditions. It is non-toxic, odorless, and has good elasticity and tear resistance. The manufacturing

process includes extrusion, jointing, and splicing[3].

Pros:
– 100% food-grade silicone material, BPA free, PVC free, and Phthalate free
– Non-toxic, odorless, and eco-friendly
– Good sealing function, water resistance, oil resistance, and anti-aging properti…
– Temperature resistance range from -40°C to 260°C
– Excellent UV and ozone resistance
– Customizable color, size, and hardness
– Durable and reusable with a lifespan of up to 10 years
– Easy to clean and maintain

Cons:
– May require specific handling and storage to maintain its properties
– Custom orders may have longer lead times
– Higher cost compared to non-food grade silicone gaskets

Custom Silicone Gasket Manufacturer

Product Details: Automated Gasket Corporation offers custom silicone gaskets and seals, catering to various industries such as aerospace, automotive, electrical, energy, food processing, and more. These gaskets are made from silicone, a versatile rubber material resistant to extreme temperatures, oxygen, aging, UV light, and ozone. They are also water-repellent and maintain a watertight seal. Silicone gaskets come in various durometers (hardness levels) and are known for their excellent compression set resistance, allowing them to return to their original thickness after compression. They are suitable for static applications and can seal at lower bolt loads due to their low durometer. The company provides

quick on-site prototyping, delivering samples within 48 hours if the material is available.

Pros:
– Highly durable and resistant to extreme temperatures, oxygen, aging, UV light, a…
– Water-repellent and maintains a watertight seal.
– Excellent compression set resistance, allowing it to return to its original thic…
– Suitable for static applications and seals at lower bolt loads.
– Provides excellent electrical insulation and can block electromagnetic interfere…
– Odorless, tasteless, and fungus-resistant, making it suitable for pharmaceutical…

Cons:
– Not preferred for applications involving oils.
– Poor tear and tensile strengths, making it less suitable for dynamic application…

China Custom Silicone Parts

Custom Molded Silicone Rubber Gaskets

Product Details: Molded silicone seal rings are crafted from high-quality silicone materials, offering excellent flexibility, elasticity, and resistance to extreme temperatures. They are available in various sizes and cross-sections, including standard AS568 and metric sizes. These O-rings are manufactured using processes such as compression molding, continuous molding, and vulcanization. They are suitable for static and dynamic applications, including automotive, aerospace, food processing, and pharmaceutical industries. The operating temperature range is typically from -60°C to 230°C (-76°F to 446°F)[2][4][5].

Pros:
– Resistant to extreme temperatures
– Excellent flexibility and elasticity
– Superior resistance to aging and UV/ozone exposure
– Maintains sealing capabilities under pressure
– Resistant to various chemicals
– Available in diverse sizes and cross-sections
– Customizable to meet specific application requirements

Cons:
– Higher cost for custom sizes and materials
– Potential for parting line and flash misalignment in some manufacturing methods
– Installation challenges in non-standard gland configurations
– Variable surface finish at mold transfer points
– Limited joint tensile strength in certain materials like silicone when using spl…

Comparison Table

Company	Product Details	Pros	Cons	Website
Custom Silicone Rubber Gaskets & Seals Manufacturer	Hongju manufactures high-quality silicone rubber gaskets and seals, catering to various industries such as marine, automotive, engineering, defense, f…	– Excellent non-stick and electrical insulation properties – Maintains flexibility and compression set at low or high temperatures – Resistant to wate…	– No specific cons mentioned on the website – Production cycle can vary from 9-15 workdays depending on order quantity and com…	hongjusilicone.com
China All Types Silicone Gasket Manufacturer & Supplier	Silicone gaskets are made from high-quality solid silicone rubber compounds. They are available in various hardness levels (40° | 50° | 60° | 70° | 80…	– Excellent aging resistance, tensile strength, elongation, tear resistance, ozone… – High temperature and chemical resistance while maintaining fle…	– No specific cons mentioned in the provided source.	www.jinsealing.com
Silicone Gasket Manufacturer and Supplier in China	Weprofab offers silicone gaskets in all standard sizes, hardness, colors, and configurations. These gaskets are designed to meet various industry cert…	– Available in all standard sizes, hardness, colors, and configurations – Meet various industry certifications and application requirements – Excellen…	– No specific cons mentioned on the website – May require additional customization which could add complexity and cost	plas-fab.com
Silicone Gaskets – Custom Silicone Parts	NEWTOP Custom Silicone offers top-of-the-line die cut and molded silicone rubber gaskets. These gaskets are designed for use in various industries glo…	– High-quality and reliable products that meet industry standards – Customizable to fit specific application needs – Durable and resistant to extreme…	– Injection molding can be more expensive due to equipment and tool costs – Compression molding may not be as effective for large volume production -…	www.newtopcustomsilicone.com
Custom Silicone Seals Manufacturer in China	LegenDay silicone seals are made from 100% organic silicone and are food-grade. They exhibit excellent resistance to heat, chemicals, aging, ozone, fu…	– Excellent resistance to heat, chemicals, aging, ozone, fungal growth, and water – Outstanding compression set, tear strength, elongation, and tensil…	– No specific cons mentioned, but high initial and ongoing equipment investment co…	legenday.com.cn
China Silicone Gasket Manufacturers, Suppliers, Factory	Silicone rubber gaskets are made from high-quality silicone compounds and are available in various grades and hardness levels. They can be manufacture…	– High temperature resistance up to 600°F – Excellent resistance to UV, ozone, and weathering – Good chemical resistance – Maintains flexibility in lo…	– Higher cost compared to other gasket materials – May not be suitable for applications requiring high tensile strength – Can be prone to compression…	www.rubberplasticparts.com
China Airtight Box Silicone Gasket	The airtight box silicone gasket is made from 100% food-grade silicone, which is BPA free, PVC free, and Phthalate free. It has certifications from FD…	– 100% food-grade silicone material, BPA free, PVC free, and Phthalate free – Non-toxic, odorless, and eco-friendly – Good sealing function, water res…	– May require specific handling and storage to maintain its properties – Custom orders may have longer lead times – Higher cost compared to non-food g…	www.silicone-tubings.com
Custom Silicone Gasket Manufacturer	Automated Gasket Corporation offers custom silicone gaskets and seals, catering to various industries such as aerospace, automotive, electrical, energ…	– Highly durable and resistant to extreme temperatures, oxygen, aging, UV light, a… – Water-repellent and maintains a watertight seal. – Excellent c…	– Not preferred for applications involving oils. – Poor tear and tensile strengths, making it less suitable for dynamic application…	www.automatedgasketcorp.com
China Custom Silicone Parts				www.silicone-tubings.com
Custom Molded Silicone Rubber Gaskets	Molded silicone seal rings are crafted from high-quality silicone materials, offering excellent flexibility, elasticity, and resistance to extreme tem…	– Resistant to extreme temperatures – Excellent flexibility and elasticity – Superior resistance to aging and UV/ozone exposure – Maintains sealing ca…	– Higher cost for custom sizes and materials – Potential for parting line and flash misalignment in some manufacturing methods – Installation challeng…	www.tenchy.cn

Frequently Asked Questions (FAQs)

What materials are commonly used in custom silicone gaskets manufactured in China?

Custom silicone gaskets in China are typically made from high-quality silicone materials that offer excellent weather resistance, ozone resistance, and compression set resistance. These materials are odorless and tasteless, making them suitable for food applications. They also exhibit high tensile strength, good elongation, and excellent shock and tear resistance.

How do I find a reliable supplier for custom silicone gaskets in China?

To find a reliable supplier, you can use online sourcing platforms, attend industry trade shows, or leverage industry networks. Make sure to assess the supplier’s credentials, certifications (such as ISO 9001, CE, and FDA), and customer reviews to ensure quality and performance consistency.

What are the typical applications of custom silicone gaskets?

Custom silicone gaskets are versatile and used in various industries, including pharmaceutical and food processing, chemical processing equipment, hydraulic systems, and in equipment like blenders, pumps, and mixers. They are ideal for extreme environments due to their stability and resistance to high and low temperatures.

What is the minimum order quantity (MOQ) for custom silicone gaskets in China?

The minimum order quantity (MOQ) for custom silicone gaskets can vary depending on the manufacturer. Some suppliers offer flexible MOQs, starting from as low as 1 piece or 50 pieces, while others may require a higher minimum order, such as 100 or 1000 pieces.

How long does it take to receive a quote and the final products from a Chinese manufacturer?

You can typically receive a quotation within 1-3 days after providing the necessary details, such as your design specifications and material requirements. The production cycle usually takes around 9-15 workdays, depending on the quantity and complexity of the order. Some manufacturers also offer rapid prototyping options that can be ready within 3-5 work days.