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This section provides an overview for sealing materials as well as their applications and principles. Also, please take a look at the list of 10 sealing material manufacturers and their company rankings. Here are the top-ranked sealing material companies as of March, 2026: 1.Shin-Etsu Chemical Co., Ltd., 2.Saint-Gobain in Japan, 3.ThreeBond Holdings Co.,Ltd..
Table of Contents
Categories Related to Sealing Materials
Engaged in research on nitride semiconductor growth using the MBE method at Waseda University Graduate School. After graduating from graduate school in 2016, he joined a non-ferrous metal manufacturer.
Engaged in equipment maintenance and engineering work at metal smelting plants. Moved to a chemical manufacturer in 2022. Engaging in similar tasks.
A Sealant is a material used to fill joints and gaps to prevent water and air from entering.
Sealants are also used to fill gaps in buildings and structures to provide cushioning and prevent damage to building materials. Sealants are flexible and maintain a certain degree of elasticity even after drying, allowing them to accommodate the movement of materials. They do not hold materials firmly together like an adhesive, but their main purpose is to fill gaps.
Sealant is also a term used in the field of dentistry. It refers to a highly effective method of cavity prevention that uses a plastic resin to fill gaps between back teeth.
Sealants are used to fill in the joints of buildings and structures to make them watertight, confidential, cushioned, or anchored. Specific applications are as follows:
Sealants can be used in the gaps between windows and doors of houses to prevent water and wind from entering, and to improve thermal and sound insulation.
Sealants can be used in bathroom and kitchen joints to prevent water and dirt from penetrating and to inhibit the formation of mold and blackening.
Sealants can be used on cracks in outdoor roofs and walls to prevent rainwater intrusion and building deterioration.
Sealants can be used to seal gaps in automobile windows and sunroofs to prevent water and wind from entering and to maintain a comfortable interior environment.
Sealants work primarily on the following principles:
Sealants fill gaps to prevent water and air from penetrating. The flexibility of the sealant also allows the material to move and fill the gap.
Since the sealant is in liquid form before curing, it can be sealed even if the bonding surface is uneven. It also absorbs tolerance variations such as joints.
Sealant has the ability to adhere to materials. This prevents the sealant from floating out of the gap. Furthermore, since it also has adhesive strength, it can be expected to prevent bolts from loosening.
Sealant is resistant to ultraviolet rays and temperature changes. This makes the sealant resistant to deterioration and allows it to continue working to fill gaps over a long period of time.
There are many different types of sealants. Each sealant is used for different purposes, depending on the characteristics of the sealant. The following is an overview of typical sealants:
Silicone sealants are mainly composed of silicone resin, which has high water and weather resistance and is suitable for many materials. In particular, they are often used for joints in bathrooms and kitchens, and for cracks in roofs and walls. Silicone sealants are also highly elastic and can handle the opening of gaps caused by material movement.
Acrylic sealants are made primarily of acrylic resin and are less expensive than silicone sealants. They are considered safe to use since they are water-based. They have a disadvantage of significant volume shrinkage as the water evaporates and the sealant hardens after application. It is often used for gaps between windows and doors of houses and for cracks in interior walls.
Urethane sealants are mainly composed of urethane resin and have strong adhesive strength and elasticity. They also have excellent abrasion resistance and oil resistance. As a result, they are often used for gaps between parts of automobiles and ships. However, their low resistance to ultraviolet rays requires caution when used outdoors.
If sealants are not applied in the proper amount, product failure or other hazards can occur due to the following reasons:
Sealant can be applied to both sides of the sealant surface or only to one side. The following are points to be considered:
*Including some distributors, etc.
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Chemac Inc., established in 1966 and based in Upper Saddle River, New Jersey, is an American manufacturer of industrial high-pressure pumps and equipment. The company provides plunger pumps, cleaning systems, and intensifiers for high-pressure water tasks. It also supplies high-pressure process equipment for the chemical, petrochemical, and oil industries, including diaphragm, multi-plunger, and hydraulic intensifier pumps. Its portfolio further includes sealing products like static gaskets and packing materials for high-pressure applications. The company is an authorized sales and service partner of Uraca Pumpenfabrik GmbH & Co. KG, a German pioneer in high-pressure technology.
Henkel Corporation is an American manufacturer specializing in sealants, adhesives, and coatings since its establishment as a subsidiary of German multinational company Henkel AG & Co. KGaA in 1974. Based in Rocky Hill, Connecticut, the company produces various oleochemicals, surfactants, and chemical intermediates used in the production of brand name industrial adhesives, skincare, and surface treatment products. Some of these include Technomelt, Purex, Bonderite, and Loctite. Henkel Corporation is divided into separate Adhesive Technologies, Beauty Care, and Laundry & Home Care business units. The company primarily supplies the product formulation needs of clients in the consumer goods and industrial sectors.
Sinograf SA, established in 1994 and headquartered in Kujawsko-Pomorskie, Poland, is a manufacturer that specializes in modern materials and industrial equipment. The company offers a wide range of products, including gland packings, fiberglass insulation, natural graphite, gasket sheets, joint sealant tapes, and more. It also provides glass ropes, services, and consulting in the field of materials economic optimization. Its product is chemical resistance and resistance to oxidizers, ozone, U, and solvents. The company has achieved PZH health quality certificates and certificates from the Office of Technical Inspection. It serves industries such as manufacturing, mechanical, machinery, aerospace, and more.
Saint-Gobain in Japan, established in 1917 and headquartered in Tokyo, Japan, is a manufacturer and distributor of materials and solutions for construction, mobility, healthcare, and various other industrial applications. The company's product portfolio includes glass ceramics, abrasive products, performance plastics, glass wool, and automotive glass. These products are applied in various industries, including automotive, aeronautical, healthcare, defense, and the food and beverage industry. The company holds both ISO 9001 and ISO 14001 certificates, as well as an OHSAS 18001 certificate for quality and EHS (Environmental Health and Safety) systems.
Krylex, established in 1983 and headquartered in Alpharetta, Georgia, United States, is a manufacturer of industrial adhesives. The company's products include light cure (UV), polyurethane hot melt (PUR), and cyanoacrylate (CA) adhesives. These products are used for structural bonding, engine and machinery casketing, and sealing across industries that include electronics, automotive, and medical equipment. It also specializes in custom adhesive formulations for original equipment and private label manufacturers. Its main branded adhesive technologies include Krylex and Chemence.
SHARP CHEMICAL IND. CO. LTD., founded in 1960 and headquartered in Osaka, Japan, is a manufacturer and distributor of sealants, adhesives, coatings, and water repellents. The company's product line includes flame retardant MS sealant BURN HARD ONE designed for construction joints and repair of cracks of mortar/concrete, and Lumber Repair Caulk NB for preventing cracks and corrosion of outdoor wooden materials. These products find various applications in civil engineering, electronic manufacturing, and automobile assembly. The company also accommodates small OEM orders and is the authorized agent for COX, the British Caulking-Gun manufacturer.
ThreeBond Holdings Co., Ltd, was established in April 2012 in Kanagawa, Japan, as a chemical manufacturer and supplier of industrial sealants, adhesives, cleaners, and adhesive coating materials. Instant adhesives, locking agents, resins, polymers, and rubber adhesives are available, as are electronics, electronics, automotive aftermarkets, and general industrial supplies. The cleaner product section includes degreasing and cleaning solutions for cleaning plant floors, vehicle brake shoes, and drums. The compounds are used in vehicle manufacturing plants to bond fuel cells, motors, batteries, and engines and transfer and link smartphones and wearable gadgets in the electronics sector.
Shin-Etsu Chemical Co., Ltd., founded in 1926 in Japan, is a manufacturer and distributor of synthetic chemicals and electronic materials, such as semiconductor silicon and rare earth quartz. The company offers a wide range of products, including silicone sealants and rubbers, as well as cellulose derivatives used in foods and pharmaceuticals, and rare earth magnets. The company has four core business segments, including infrastructure chemicals, electronics materials, silicone-based functional agents, and specialized engineering for the development of plant design, construction, and maintenance.
Swagelok is a manufacturer and supplier of fluid system parts and components that was established in Cleveland, Ohio, USA, in 1947. The company’s product lineup includes various industrial valves for controlling fluid direction or pressure, tube fittings and adaptors for stable connectivity in systems or assemblies, and filters for separating contaminants. It also offers back-pressure, dome-loaded, and spring-loaded regulators for maintaining consistency in fluid system performance. The company operates internationally, with authorized service centers and sales locations in over 70 countries. Its products are typically used in oil and gas, biopharmaceutical, and chemical refining operations.
Ranking as of March 2026
Derivation Method| Rank | Company | Click Share |
|---|---|---|
| 1 | Shin-Etsu Chemical Co., Ltd. |
16.9%
|
| 2 | Saint-Gobain in Japan |
14.5%
|
| 3 | ThreeBond Holdings Co.,Ltd. |
12.8%
|
| 4 | SINOGRAF SA |
11.9%
|
| 5 | Swagelok |
10.5%
|
| 6 | Chemac Inc. |
10.2%
|
| 7 | KRYLEX |
9.7%
|
| 8 | Henkel Corporation |
9.0%
|
| 9 | SHARP CHEMICAL IND. CO.,LTD. |
3.5%
|
| 10 | Chukoh Chemical Industry Co., Ltd. |
1.0%
|
Derivation Method
The ranking is calculated based on the click share within the sealing material page as of March 2026. 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 (%) |
|---|---|---|
|
Japan
|
4 | 57.1% |
|
United States of America
|
2 | 28.6% |
|
Poland
|
1 | 14.3% |
859 products found - Page 6
859 products - Page 6
Hinode Manufacturing Co., Ltd.
140+ people viewing
■Features Low torque, excellent heat resistance, abrasion resistance, chemical resistance, solvent resistance, and oil resistance. Depending on the...
Tagami Seal Co., Ltd.
370+ people viewing
Last viewed: 1 day ago
We have a variety of standard dimensions (P, G, V, AS, JASO, ISO, etc.). Non-standard dimensions will be manufactured by broiling. *Even standard ...
Muramatsu Co., Ltd.
610+ people viewing
Last viewed: 1 day 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...
Tsukiji Manufacturing Co., Ltd.
730+ people viewing
Last viewed: 15 hours ago
M-O Tech Co., Ltd.
290+ people viewing
■Summary Hallite's JBR is a spring load type single pressure piston seal that is compatible with the P groove of JIS B2401. It has a U-shaped seal ...
M-O Tech Co., Ltd.
390+ people viewing
We handle a wide range of products, mainly various hydraulic seals and backup rings used as repair parts for construction machinery and agricultura...
Muramatsu Co., Ltd.
360+ people viewing
Last viewed: 1 day 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...
Garpack Japan Co., Ltd.
210+ people viewing
Last viewed: 1 day ago
Seals for rotary motion are used in equipment that has a shaft that rotates or oscillates, and are required to have good sealing performance, reduc...
Tagami Seal Co., Ltd.
310+ people viewing
Last viewed: 1 day ago
We have a variety of standard dimensions (P, G, V, AS, JASO, ISO, etc.). Non-standard dimensions will be manufactured by broiling. *Even standard ...
Technetics Group
790+ people viewing
Last viewed: 17 hours ago
■It is a metal seal with elasticity. Groove, RF/FF, T&G, NW/KF, 3-end contact type, ICF/conflat, irregular shapes, and rectangular shapes are also ...
M-O Tech Co., Ltd.
270+ people viewing
Last viewed: 1 day ago
■Summary Hallite's JBR is a spring load type single pressure rod seal that is compatible with the P groove of JIS B2401. It has a U-shaped seal jac...
M-O Tech Co., Ltd.
330+ people viewing
Last viewed: 1 day ago
We handle a wide range of products, mainly various hydraulic seals and backup rings used as repair parts for construction machinery and agricultura...
Sowa Industries Co., Ltd.
310+ people viewing
Last viewed: 16 hours ago
This is a special packing made of graphite fibers reinforced with carbon fibers and then impregnated with an occlusive agent. ■Features It has exc...
Garpack Japan Co., Ltd.
220+ people viewing
Last viewed: 14 hours ago
Seals for rotary motion are used in equipment that has a shaft that rotates or oscillates, and are required to have good sealing performance, reduc...
Tagami Seal Co., Ltd.
340+ people viewing
Last viewed: 10 hours ago
We have a variety of standard dimensions (P, G, V, AS, JASO, ISO, etc.). Non-standard dimensions will be manufactured by broiling. *Even standard ...
Keken Polymer Materials (Shanghai) Co., Ltd.
200+ people viewing
Last viewed: 8 hours ago
■Product introduction Our products in this series are applied to the molding of large structural components such as power generation wind turbine b...
M-O Tech Co., Ltd.
300+ people viewing
Last viewed: 4 minutes ago
■Summary Hallite's SSP is a double-acting O-ring combination rotating swivel seal designed to seal the outside diameter of shafts, bores, swivels, ...
Tokyo Kogyo Trading Co., Ltd.
220+ people viewing
Last viewed: 13 hours ago
Interlocked flexible graphite coated with seamless graphite (GTB GRAFOIL). Thanks to the patented Dynagraph construction method, it has excellent l...
Sowa Industries Co., Ltd.
380+ people viewing
Last viewed: 8 hours ago
This is a special packing made of graphite fibers containing carbon fibers, reinforced with carbon fibers, and then impregnated with a clogging age...
Sowa Industries Co., Ltd.
520+ people viewing
This sheet gasket is made of 100% expanded PTFE and has excellent flexibility and workability, as well as heat resistance, chemical resistance, cre...
M-O Tech Co., Ltd.
320+ people viewing
Last viewed: 1 day ago
■Summary Hallite's SSR is a double-acting O-ring combination rotating swivel seal designed to seal the inside diameter of shafts, bores, swivels, a...
Garpack Japan Co., Ltd.
250+ people viewing
Last viewed: 6 hours ago
Seals for reciprocating motion are broadly divided into rod seals and piston seals, and they generally seal the inner and outer sides of the packin...
M-O Tech Co., Ltd.
370+ people viewing
It uses MOS₂ (molybdenum disulfide), which has an outstanding low coefficient of friction, to ensure high sliding performance. It ensures excellent...
Sowa Industries Co., Ltd.
390+ people viewing
Packing for high temperature and high pressure with increased strength, made of graphite fiber reinforced with Inconel wire braided into a square c...
Sowa Industries Co., Ltd.
400+ people viewing
Last viewed: 21 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...
Garpack Japan Co., Ltd.
270+ people viewing
Last viewed: 23 hours ago
Seals for reciprocating motion are broadly divided into rod seals and piston seals, and they generally seal the inner and outer sides of the packin...
Tagami Seal Co., Ltd.
320+ people viewing
Last viewed: 1 day ago
We have a variety of standard dimensions (P, G, V, AS, JASO, ISO, etc.). Non-standard dimensions will be manufactured by broiling. *Even standard ...
Tokyo Kogyo Trading Co., Ltd.
250+ people viewing
The corners are interlocked with flexible graphite, reinforced with carbon fiber and covered with flexible seamless graphite (GTB GRAFOIL). It has ...
Sowa Industries Co., Ltd.
430+ people viewing
This is a sheet gasket made by compressing polytetrafluoroethylene resin molding powder and molding it into a sheet shape. ■Features Excellent hea...
Sowa Industries Co., Ltd.
460+ people viewing
Last viewed: 15 hours ago
A gland packing made of high-grade carbon fiber braided into a square cross section and treated with a special heat-resistant lubricant. ■Features...
