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This section provides an overview for sheet gaskets as well as their applications and principles. Also, please take a look at the list of 18 sheet gasket manufacturers and their company rankings. Here are the top-ranked sheet gasket companies as of January, 2025: 1.Powerful Global Supplies, 2.Klinger IGI Inc., 3.SealSales.com.
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1985-2014: Worked for Alstom Corporation, ABB Corporation, and Gadelius Corporation, designing Jungstrom air preheaters and mechanical design of diamond soot blowers. (ABB Corporation: https://new.abb.com/jp)
2014-2021: Worked as an engineering and project manager at Alvos Inc.
https://www.linkedin.com/in/yoichi-hiroki-92192394/
Sheet gaskets are sheet-shaped components or materials used in equipment, structures, piping, etc., to prevent internal fluids from leaking out.
Although gaskets are used for similar purposes, seat packing is a type of sheet gasket among non-metallic gaskets, and although they are called differently, they are basically the same thing. In general, there are gaskets and packing for sealing purposes, and gaskets are mainly used for "motionless" or "immobile" parts.
Gaskets are mainly used for "motionless" or "immobile" parts, whereas packing is mainly used for "moving" or "movable" parts. In this case, however, seat packing, like gasket, is used for "motionless" or "immobile" parts.
Figure 1. Sheet packing for pipe flange
Seat packing is used to maintain airtightness and sealing. Generally, manufacturers' products are shipped in large sheets, and processors and users cut or drill the sheets to the required dimensions before use.
O-rings made of rubber are well-known as gaskets. O-rings are soft, so when they are tightened and pressurized, their shape changes to increase adhesion, eliminate gaps, and suppress leaks. However, since they are made of rubber, they have drawbacks, such as breakage when over-pressurized, lack of durability, and cannot be used at high temperatures. Seat packing compensates for these disadvantages.
In the three sheet packing, the sheet material is crushed by the pressurization, but the adhesive enhances the adhesion and suppresses leakage. Since the adhesive is used instead of deforming the sheet material, the leak prevention effect is sustained. On the other hand, it is disposable and cannot be reused once used.
In addition, adhesive remains at the joints, so the adhesive must be removed cleanly the next time it is used. Another disadvantage is that if the joints are not parallel but slightly tilted, the adhesive will not stick and seal.
The joint sheet has an intermediate role between the O-ring and the three-sheet. Joint sheets seal by changing shape and have high durability, but since they are also in sheet form, they cannot seal if the joint is even slightly tilted. There is a wide variety of sealants available, and they must be selected appropriately for the situation.
There are two types of seat packing: three-seat packing and joint sheet.
Figure 2. Three-sheet packing
Three sheet packing is a sheet-type pack manufactured by ThreeBond. This packing is characterized by the fusion of solid packing and liquid packing. A sheet of high-strength fiber material is impregnated with a special viscous material, and when it is sandwiched between joint surfaces and tightened, the viscous material impregnated inside oozes to the surface and fills the minute uneven gaps on the joint surfaces, thereby enhancing sealing performance.
Therefore, leakage can be prevented with low tightening surface pressure. The viscous material impregnated into the fiber material sheet prevents leakage due to permeation by capillary action. The viscosity impregnation makes it highly flexible and provides a good fit on the joint surface.
Unlike general sheet packing and gaskets, the gap between the joint surfaces is reduced, resulting in less leakage of liquid. In particular, it has excellent resistance to oils. Three-Sheet Packing has a little decrease in thickness after being sandwiched between joint surfaces and tightened, so there is less loosening and good tightening can be maintained.
The operating temperature range and tightening surface pressure are as follows, depending on the model number
Three-Sheet packing is available in rolls of 1,000 x 25,000 mm with thicknesses ranging from 0.1 to 1.15 mm. It is cut and processed according to the shape of the flange, etc.
Figure 3. Joint sheet packing
Joint sheet packing is often referred to as joint sheet gasket, but they are basically the same thing. Joint sheet packing is a packing made by adding heat- and oil-resistant rubber as a binder to fiber sheet material, rolling and vulcanizing it, and forming it into a smooth sheet shape.
Asbestos-containing fibers were used in the past, but after the revision of the law, non-asbestos fibers and carbon fibers are now being used. Joint sheet packing is widely used for flanges and machine joint surfaces because of its versatility and processability.
As an example, the operating temperature range and tightening surface pressure are as follows, although they vary depending on the manufacturer, model number, fluid used, etc.
Joint sheet packing dimensions range from 0.41 to 3.0 mm in thickness and come in large sheets in sizes from 1,270 x 1,270 mm to 3,048 x 3,810 mm. They are cut and processed according to the flange shape and other specifications.
*Including some distributors, etc.
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KLINGER IGI is a manufacturer located in Wilsonville, Oregon, founded in 1886, offering precision material conversion capabilities. They specialize in fabricating thermal interfaces, EMI/RFI shields, gaskets, and various components for industries like aviation, aerospace, medical devices, power generation, and defense. Serving original equipment manufacturers, their products cater to highly regulated sectors such as scientific instruments and alternative energy. KLINGER IGI is an AS 9100, ISO 9001, and ITAR registered material conversion specialist.
SealSales.com, established in 2000 and based in California, United States, is a manufacturer and supplier of seals and gasket materials. The company’s product portfolio includes mechanical seals, seal-on-ring seats, gasket materials, compression packaging, packing tools, and spiral wound gaskets. They also offer customer repair services, technical support, and customized solutions with different specifications. Its products are used in multiple industries including oil, gas, coal mining, chemical, refinery, and water sectors.
Henning Gasket of Chicago, Illinois, has a 100 year history of serving industries including agriculture, power generation, transportation, construction, electronics, pharmaceutical, and food processing as a distributor for gasket materials, seal materials, gaskets, seals, and related tools. Hennig Gasket also offers gasket manufacturing, of over 30 varieties including roll and sheet gasket material, and cutting services. Custom gasket manufacturing includes many types such as paper gaskets, ceramic fiber gaskets, pipe seals, flame resistant, neoprene gaskets, and chiller gaskets.
Nichias Corporation, founded in 1896 and headquartered in Tokyo, Japan, is a manufacturer and seller of building materials, auto parts, advanced, industrial, and energy products. In 1938, it became the first Japanese company to manufacture rock wool products, and in 1952, it began making spiral wound gaskets. It aims for carbon neutrality by 2050 and is engaged in recycling rock wool product scraps from its plants and construction sites. Its manufacturing establishments in Japan and overseas have ISO 14001, and its product portfolio includes sealing materials, fluoro resin products, heat insulators, calcium silicate boards, and rubber composite gaskets.
Ningbo Sunshine Sealing Technology Co., Ltd, founded in China in 2006, is a manufacturer of industrial sealing materials. The company's product portfolio includes a diverse array of gaskets for various applications, including fluid sealing, heat resistance, and vibration damping, sealing tapes and strips are designed to provide reliable sealing and insulation solutions for a wide range of industries and customized sealing material solutions. It serves industries such as oil and gas, chemical plants, petrochemicals, mining, and electronics.
Sunpass Sealing Technology Co., Ltd, founded in China in 1979, is a manufacturer of sealing and thermal insulations. The company offers a diverse array of sealing products, including gaskets, seals, O-rings, and custom-designed solutions, and a wide selection of thermal insulation materials, including blankets, boards, and coatings, designed to enhance energy efficiency and temperature control in industrial and construction settings. It serves markets such as construction, industrial manufacturing, and automotive.
Teflex, founded in 2011 and based in Zheijiang, China, is a manufacturer and global supplier specializing in PTFE products and services, including industrial sealing and filtration components. The company’s diverse product range has grown significantly from the original gasket business to research and developing filtration materials to include Eptfe sheets, Eptfe joint sealants, and PTFE film. The company also offers metal gaskets, non-metallic gasket sheets, and gland packing. These PTFE components are necessary for demanding applications in the oil & gas, mining, chemical, and electronic industries. The company operates under ISO 9001 quality management system and holds FDA, Rosh, and Reach certifications.
Saunders, A Div. of R.S. Hughes Co. Inc., since 1959, has been a manufacturer of personalized solutions for customer-specific needs. The company offers services such as adhesive binding, complex laminating, die cutting, flexographic printing, and gasket manufacturing with capabilities such as rewinding, prototyping, sheeting, roll slitting, and precision slitting. Based in Irwindale, CA, the company is a 3M preferred converter and provides materials such as custom foams, tapes, composite materials, fabrics, and release liners.
Mitsui Chemicals Tohcello, Inc., established in 1929 and headquartered in Tokyo, Japan, is a manufacturer and supplier specializing in the development of materials, films, and sheets. The company's product portfolio includes packaging solutions, protective films, and industrial films and sheets. These products find applications in various industries, including automobile, healthcare, solar energy, food and beverage, and electronics and information technology. The company provides its products and support services across Japan and the rest of Asia, with facilities in China, Taiwan, Thailand, and Malaysia.
Suraj Metal Corporation started its operations in 1973 in Mumbai, India, as a prime manufacturer and supplier of alloy stainless and nickel products. The company is devoted to provide customers with global steel procurement services. They produce industrial goods that are durable, and have the necessary proportions. Round Bars, Forging, and Fasteners are just a few of this organization's Stainless Steel and Nickel Alloys products. They are always faithful to their ideals, which are congruent with ethical business methods.
KLINGER was established in 1886 in Gumpoldskirchen, Lower Austria, as a manufacturer and supplier of industrial sealings, fluid control systems, and fluid monitoring systems. The company's product list comprises KLINGER CNAF gaskets, KLINGER ball valves (INTEC Range), and Reflex level gauges, among others. The products provide sealing solutions for critical applications requiring chemical resistance and temperature management, precise flow control and shut-off functionality in industrial processes, and essential liquid level monitoring for safe operations. The company serves various industries, including general manufacturing, automotive, infrastructure, marine, and food and beverage.
Discount Rubber Direct is a supplier of quality rubber products based in the United States and established in 1994. The company offers customers access to premium rubber products at competitive prices. The company has consistently sourced and supplied a wide range of rubber materials, from sheets and rolls to custom-cut parts, catering to various industrial needs. Discount Rubber Direct's product portfolio encompasses a comprehensive range of rubber materials suitable for applications in manufacturing, construction, automotive, and more. The company delivers industrial rubber sheets, neoprene rubber rolls and specialty rubber products.
Harkesh Rubber Industries, founded in India is a supplier of precision sealing solutions. The company's product portfolio includes gaskets, O-rings, seals, and a wide array of sealing materials, including elastomers, thermoplastics, metals, and composites. Its products are used in automotive applications, including engines, transmissions, and other critical components, in the medical industry, ensuring the safety and reliability of medical devices and equipment. The company exports to Asia, Europe, the Middle East, and the United States of America.
Ranking as of January 2025
Derivation Method| Rank | Company | Click Share |
|---|---|---|
| 1 | Powerful Global Supplies |
18.8%
|
| 2 | Klinger IGI Inc. |
18.8%
|
| 3 | SealSales.com |
12.5%
|
| 4 | Saunders, A Div. of R.S. Hughes Co. Inc. |
12.5%
|
| 5 | San Diego Seal, Inc |
6.3%
|
| 6 | Ningbo Sunshine Sealing Technology Co., Ltd |
6.3%
|
| 7 | Suraj Metal Corporation |
6.3%
|
| 8 | Teflex Gasket Company Limited |
6.3%
|
| 9 | Hennig Gasket & Seals, Inc. |
6.3%
|
| 10 | NICHIAS Corporation |
6.3%
|
Derivation Method
The ranking is calculated based on the click share within the sheet gasket page as of January 2025. Click share is defined as the total number of clicks for all companies during the period divided by the number of clicks for each company.Number of Employees
Newly Established Company
Company with a History
*Including some distributors, etc.
*Including some distributors, etc.
| Country | Number of Companies | Share (%) |
|---|---|---|
|
China
|
5 | 35.7% |
|
United States of America
|
4 | 28.6% |
|
Japan
|
2 | 14.3% |
|
India
|
1 | 7.1% |
|
Austria
|
1 | 7.1% |
Malaysia
|
1 | 7.1% |
64 products found
64 products
Kimoto Rubber Industries Co., Ltd.
80+ people viewing
Last viewed: 51 minutes ago
Standard Response
It is a sheet-shaped rubber made by mixing raw rubber and chemicals and vulcanizing it. We select the material according to the application, cut it...
Sowa Industries Co., Ltd.
70+ people viewing
Last viewed: 50 seconds ago
A sheet gasket material made of biosoluble inorganic fiber as the main raw material, inorganic fiber and inorganic filler added, and reinforced wit...
Muramatsu Co., Ltd.
80+ people viewing
Last viewed: 11 hours ago
■White sheet gasket that can be used for a wide range of purposes. ・Clean and has excellent chemical resistance. ・Can be used at high temperature...
Sowa Industries Co., Ltd.
70+ people viewing
Last viewed: 5 hours ago
Heat and oil resistant joint sheet/S-2500 oil swelling type sheet. ■Features A heat-resistant and oil-resistant sheet that swells appropriately wi...
Muramatsu Co., Ltd.
80+ people viewing
Last viewed: 8 minutes ago
■Features ・A gasket with a corrugated shape that concentrates surface pressure and improves sealing performance. ・Can be processed into special s...
Kimoto Rubber Industries Co., Ltd.
90+ people viewing
Last viewed: 23 hours ago
Standard Response
It is a sheet-shaped rubber made by mixing raw rubber and chemicals and vulcanizing it. We select the material according to the application, cut it...
Sowa Industries Co., Ltd.
60+ people viewing
Last viewed: 10 minutes ago
This sheet is mainly made of expanded graphite and reinforced with biosoluble inorganic fibers and aramid fibers. Oil-resistant synthetic rubber wi...
Toyo Tanso Co., Ltd.
140+ people viewing
Last viewed: 8 hours ago
Very Fast Response
■Product overview Carbon sliding materials have excellent self-lubricating properties, heat resistance, and chemical resistance, so they are often ...
Sowa Industries Co., Ltd.
50+ people viewing
Last viewed: 5 hours ago
A low surface pressure gasket made by punching out various synthetic rubber sheets. ■Features Excellent wear resistance ■Applications Gaskets for...
Kimoto Rubber Industries Co., Ltd.
70+ people viewing
Last viewed: 18 hours ago
Standard Response
It is a sheet-shaped rubber made by mixing raw rubber and chemicals and vulcanizing it. We select the material according to the application, cut it...
Toyo Tanso Co., Ltd.
110+ people viewing
Last viewed: 4 minutes ago
Very Fast Response
■Product overview Carbon sliding materials have excellent self-lubricating properties, heat resistance, and chemical resistance, so they are often ...
Sowa Industries Co., Ltd.
50+ people viewing
A gasket made of EPDM rubber that is pressure-molded into a cross-sectional shape. ■Features Suitable for piping lines where surface pressure cann...
Kimoto Rubber Industries Co., Ltd.
80+ people viewing
Last viewed: 13 hours ago
Standard Response
It is a sheet-shaped rubber made by mixing raw rubber and chemicals and vulcanizing it. We select the material according to the application, cut it...
Toyo Tanso Co., Ltd.
150+ people viewing
Last viewed: 7 hours ago
Very Fast Response
■Product overview Carbon sliding materials have excellent self-lubricating properties, heat resistance, and chemical resistance, so they are often ...
Sowa Industries Co., Ltd.
50+ people viewing
Last viewed: 1 day ago
This is a gasket made by pressurizing and heating a PTFE film onto an EPDM rubber molded product and bonding it together. ■Features Suitable for p...
Kimoto Rubber Industries Co., Ltd.
80+ people viewing
Last viewed: 23 hours ago
Standard Response
A rubber sponge sheet is a sheet made by kneading foaming materials into the raw material rubber. Rubber sponge has two types: closed cells, which ...
Sowa Industries Co., Ltd.
50+ people viewing
Last viewed: 4 hours ago
This is a sheet gasket made by compressing polytetrafluoroethylene resin molding powder and molding it into a sheet shape. ■Features Excellent hea...
Kimoto Rubber Industries Co., Ltd.
80+ people viewing
Last viewed: 6 hours ago
Standard Response
A rubber sponge sheet is a sheet made by kneading a foaming material into the raw material rubber. Rubber sponge has two types: closed cells, which...
Muramatsu Co., Ltd.
50+ people viewing
Last viewed: 4 hours ago
■Structure Gaskets made by punching various rubber sheets into gasket shapes. ■Features A gasket that can seal with low surface pressure due to th...
Furuto Industrial Co.,Ltd.
80+ people viewing
Last viewed: 2 hours ago
Very Fast Response
Furuto Sealing SM is a flexible plate-like product, so it can be easily cut with scissors and is easy to process. It can be pressed into uneven par...
Sowa Industries Co., Ltd.
40+ people viewing
Last viewed: 4 hours ago
This is a PTFE-wrapped gasket with a PTFE shell coated on the core material of joint sheets, etc. ■Features Excellent non-contamination and chemic...
Miyata Industries Co., Ltd.
140+ people viewing
Last viewed: 16 hours ago
Standard Response
The packing is a water stop packing for flanges and screw sockets.
Kimoto Rubber Industries Co., Ltd.
60+ people viewing
Last viewed: 7 hours ago
Standard Response
A rubber sponge sheet is a sheet made by kneading foaming materials into the raw material rubber. Rubber sponge has two types: closed cells, which ...
Kimoto Rubber Industries Co., Ltd.
90+ people viewing
Last viewed: 13 hours ago
Standard Response
Polyethylene foam is a sheet made of polyethylene resin as a base material. Polyethylene foam also has two types: closed cells, which have independ...
Kimoto Rubber Industries Co., Ltd.
70+ people viewing
Last viewed: 7 hours ago
Standard Response
Polyethylene foam is a sheet made of polyethylene resin as a base material. Polyethylene foam also has two types: closed cells, which have independ...
Muramatsu Co., Ltd.
50+ people viewing
Last viewed: 4 hours ago
■Structure A gasket made of alkaline earth silicate wool (AES) cloth or glass cloth sealed with rubber and punched into a specified shape. ■Applic...
Sowa Industries Co., Ltd.
50+ people viewing
Last viewed: 13 hours ago
This sheet gasket is made of 100% expanded PTFE and has excellent flexibility and workability, as well as heat resistance, chemical resistance, cre...
Toyo Tanso Co., Ltd.
120+ people viewing
Last viewed: 1 day ago
Very Fast Response
■Product overview Carbon sliding materials have excellent self-lubricating properties, heat resistance, and chemical resistance, so they are often ...
Toyo Tanso Co., Ltd.
90+ people viewing
Last viewed: 16 hours ago
Very Fast Response
■Product overview Carbon sliding materials have excellent self-lubricating properties, heat resistance, and chemical resistance, so they are often ...
Sowa Industries Co., Ltd.
40+ people viewing
Last viewed: 13 hours ago
This is a sheet for high temperature and high pressure use, made by hooking a thin steel plate with a core of 0.2mm (0.25mm is also possible) and c...
