Are you looking for the best gasket and sealant manufacturers in China? With so many options available, it can be overwhelming to choose the right one. In this article, we’ll compare the top factories in China, highlighting their strengths, product ranges, and what sets them apart in the industry. Let’s dive in and find the perfect fit for your needs.

Seals & Gaskets | Custom Industrial Seals & Packing

China Spiral Wound Gasket, Ring Joint Gaskets,PTFE …

Garlock China

Product Details: Garlock China carries the full line of Garlock products, including those from GSP and GPT, as well as certain products from the Technetics Group. Products manufactured in Shanghai for the Asian market include spiral wound metal gaskets, kammprofile metal gaskets, non-metallic pipe flange gaskets, welded GYLON, EVSP packings, and KLOZURE oil seals. The company has over 80 employees across its main office in Shanghai and regional sales offices in Beijing, Dalian, Zhengzhou, Chengdu, and Shenzhen.

Pros:
– Comprehensive product range tailored for the Asian market
– Local manufacturing in Shanghai to ensure timely delivery and support
– Extensive regional presence with multiple sales offices
– Products designed to solve unique sealing challenges and improve plant productiv…

Cons:
– Limited information on specific product performance metrics or customer reviews…
– No detailed comparison with competitors available on the site

Kaxite Sealing Manufacturers & Suppliers

China Industrial Gasket Manufacturer & Supplier | Longseal

Product Details: Nitrile (Buna-N) gaskets are made from a rubber compound known as acrylonitrile butadiene terpolymer (NBR). They are highly resistant to petroleum oils, mineral oils, vegetable oils, and many acids. These gaskets have good elongation properties, adequate resilience, tensile strength, and compression set. They are available in various grades, including commercial, food grade, and high-strength grades. The durometer hardness ranges from 30 to 90 Shore A, and they can operate within a temperature range of -30°F to +200°F (-34°C to +93°C)[1][2][5].

Pros:
– Excellent resistance to oils, fuels, and greases
– Good mechanical properties, including high tensile strength and wear resistance
– Wide operating temperature range
– Available in food-grade and other specialized grades
– Good resistance to certain chemicals and dilute acids

Cons:
– Not compatible with fuels of high aromatic content, aromatic hydrocarbons, chlor…
– Elasticity and resistance to compression set can be adversely affected by high a…
– Not suitable for applications involving strong acids, glycol-based brake fluids,…

China Gasket Maker and Silicone Gasket

Gaskets & Seals Manufacturers

Product Details: Sealing-china.com offers a wide range of industrial sealing products, including Spiral Wound Gaskets, Metal Serrated Gaskets, Metal Corrugated Gaskets, Ring Joint Gaskets, Metal Jacketed Gaskets, PTFE Envelope Gaskets, Reinforced Graphite Gaskets, Teflon Gaskets, Reinforced PTFE Gaskets, Expanded PTFE Gaskets, Non-Asbestos Gaskets, Rubber Gaskets, and Rubber O-Rings. These products are suitable for various applications such as pipes, valves, and pumps, and are available in standard flange sizes like ASME, JIS, DIN, and EN. The company also produces Gland Packing made from materials like graphite, PTFE, Aramid, and carbon yarn, which can be reinforced with other materials. Their products are used in

industries like petrochemical, oil refining, electric power, iron and steel, and shipbuilding.

Pros:
– Wide range of sealing products available
– Suitable for frequent temperature and pressure changes
– Available in various standard flange sizes
– Used in multiple industries such as petrochemical, oil refining, and electric po…
– Own production workshop and CNC machining factory for direct pricing and product…
– Strong R&D team for custom product development
– Advanced testing lab and inspection equipment to ensure quality
– Free samples available and low MOQ accepted

Cons:
– No specific details on pricing or delivery costs
– Limited information on the durability and lifespan of the products
– No customer reviews or ratings provided on the website

China Gasket Silicone Sealant Factory and Manufacturers …

Product Details: Siway manufactures a variety of silicone sealants, including one-component and two-component types. These sealants are used in various applications such as curtain walls, doors and windows, insulating glass, and other construction needs. The products include weather-resistant silicone sealants, fire-resistant sealants, and structural silicone sealants. Packaging options include 300ml cartridges and 590ml sausages. The sealants are known for their excellent weathering resistance, ageing resistance, and resistance to ultraviolet radiation, ozone, and high and low temperatures[1][2][4].

Pros:
– Excellent weathering resistance, ageing resistance, and resistance to UV radiati…
– High strength and ability to bear wind and gravity loads
– Uniform foaming, waterproof, and weatherproof properties
– Strong bonding strength and sound insulation capabilities
– Wide range of applications including curtain walls, doors, windows, and insulati…
– Environmentally friendly and safe for health and safety

Cons:
– Potential issues with bad adhesion, slow curing, and bubbles or holes in the str…
– Requires thorough cleaning of the adhesive surface and proper adjustment of the…
– Higher cost for some specialized two-component silicone structural sealants comp…

Silicone Rubber Gaskets Suppliers, Manufacturers, Factory

Product Details: Silicone Rubber Gaskets are high-performance mechanical seals made from high-quality silicone rubber. They are cut from rubber sheets or mould pressing and can be produced in any sizes and shapes. These gaskets are used to prevent leaks between different substrate sections in various applications. Key properties include a wide operating temperature range of -85°C to +215°C, excellent weather resistance, ozone resistance, and compression set resistance. They also exhibit high tensile strength, elongation, tear resistance, and good recovery. The hardness ranges from 40° to 80° Shore A, and they are odorless and tasteless, making them suitable for food applications[2].

Pros:
– Excellent weather resistant, ozone resistant and compression set resistant
– Odorless and tasteless, can be used for food application
– Stability compared to other rubber products
– Excellent shock resistant and tear resistant
– High tensile strength
– High elongation and good recovery
– Good resistance to inorganic chemical products except antioxidant agents and chl…
– Suitable for pharmaceutical and food processing industries, chemical processing…

Cons:
– No specific cons mentioned for silicone rubber gaskets

Top 10 Viton Gasket & Seal Manufacturers and Suppliers …

Product Details: Viton® gaskets are made from fluoroelastomers (FKM) and are known for their high-performance properties. They offer excellent resistance to hydrocarbons, chemicals, fuels, and oils, making them suitable for automotive, aerospace, and petrochemical industries. Viton® gaskets have outstanding thermal stability, good ozone resistance, and are impermeable to gases. They are available in various grades such as Viton® A, Viton® B, Viton® F, and Viton® Extreme, each with different levels of chemical resistance and application suitability. The temperature range for Viton® gaskets is typically -18°F to +400°F, with some grades offering lower temperature flexibility and higher temperature resistance.

Pros:
– Excellent resistance to hydrocarbons, chemicals, fuels, and oils
– Outstanding thermal stability and high temperature resistance
– Good ozone resistance and resistance to atmospheric oxidation
– Impermeable to gases
– Available in various grades for different applications
– Good compression resistance even in low temperatures
– Resistant to fungus and mold

Cons:
– High cost of the material
– Limited resilience and tear strength unless compounded
– Fair impact resistance
– Not generally resistant to ketones, low molecular weight esters, or nitro-contai…
– Not serviceable below -15°F unless specific low-temperature grades are used

Comparison Table

Frequently Asked Questions (FAQs)

Frequently Asked Questions About Gasket and Sealants Factories in China

What types of gaskets and seals can I find in Chinese factories?

You can find a wide variety of gaskets and seals in Chinese factories, including Viton gaskets, silicone rubber gaskets, metal gaskets, rubber gaskets, mechanical seals, semi-metallic gaskets, and non-metallic gaskets. These products are made from various materials such as Viton, Silicone, Rubber, SBR, Nitrile, and more, catering to different industrial needs like aerospace, chemicals, and mining.

How do Chinese gasket and seal manufacturers ensure product quality?

Chinese gasket and seal manufacturers often ensure product quality through rigorous testing and the use of advanced machinery and techniques. Companies like Hongju Silicone and Techo Sealing Gasket Co., Ltd. vigorously test their products for various conditions and materials before delivery. Many of these manufacturers are also certified with ISO 9001, indicating their commitment to quality management.

Can I customize gaskets and seals according to my specific needs?

Yes, you can customize gaskets and seals to fit your specific requirements. Many Chinese manufacturers, such as Hongju Silicone and Shine Sealing Material Co., Ltd., offer custom ordering options. While standard gaskets are available immediately, customized orders may take a couple of weeks to produce, ensuring you get the exact product you need.

What is the typical pricing and minimum order quantity for gaskets and seals in China?

The pricing for gaskets and seals in China can vary widely, ranging from $0.01 to $10 per piece, depending on the material, size, and complexity of the product. Minimum order quantities (MOQ) also vary, but common MOQs range from 1 piece to 100 pieces or even 250 kg for bulk materials. This flexibility makes it accessible for both small and large-scale orders.

Do Chinese gasket and seal manufacturers provide international shipping and support?

Yes, many Chinese gasket and seal manufacturers provide international shipping and support. Companies like Shine Sealing Material Co., Ltd. and Jiangsu Sealstars Sealing Technology Co., Ltd. export their products to regions such as Europe, Central Asia, and other parts of the world. They also offer exceptional customer and technical support to address any issues that may arise during or after the purchase.