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This section provides an overview for crack sealer as well as their applications and principles. Also, please take a look at the list of 11 crack sealer manufacturers and their company rankings. Here are the top-ranked crack sealer companies as of August, 2025: 1.Robotic Maintenance Vehicles, 2.BILON HEAVY INDUSTRY (GUANGZHOU) CO.,LTD, 3.Cimline.
Table of Contents
Crack sealer is a material used to repair cracks in walls and floors.
A crack sealer should be selected according to the material to be repaired and the width of the crack. In addition, there is a high possibility that water will erode into the interior of the building, causing water to splash on household goods and electrical systems, leading to corrosion of household goods and electrical leaks.
Therefore, when cracks are found, early action is required.
Crack sealers are used on exterior walls, asphalt, floors, and other areas where cracks exist. Cracks can be caused by earthquakes, dryness, deterioration due to wind, rain, and ultraviolet rays, and the compatibility of materials.
Deterioration due to wind, rain, and ultraviolet rays can be prevented through regular inspection and repair. When cracks occur, corrosion inside the exterior wall may progress from the cracked area, and the exterior wall itself may collapse.
Different types of crack sealer should be used for different applications. The main types of materials used are as follows:
Cementitious or epoxy resins are used. Depending on the width of the cracks, epoxy resin sealers are recommended. If the exterior wall is chipped along with the crack sealer, a cementitious sealer should also be used.
A sheet made of fiberglass or asphalt-based heat injection material is used. For an easy fix, there is a product called instant asphalt. It can be made by mixing with water and kneading a bit of asphalt, so there is no need to call a contractor to fix cracks and minor dents.
Use a repair material made from acrylic resin, epoxy resin, or beeswax. If you are indoors, don't worry about it, but if you are outdoors and there is a possibility of leaks, we recommend using a type that also includes a water stopping effect.
Plaster is used to repair walls finished with plaster. Used for exterior walls of traditional houses and, more recently, for interior materials, plaster is a material that is particularly prone to cracking because of its humidity-controlling effect.
If cracks appear in vinyl wallpaper, a gap filler called Bondo Coke can be used to repair them. Cracks are caused by expansion and contraction due to the dryness of the substrate and temperature changes, as well as vibration caused by the opening and closing of doors and windows. The color of the Bond Coke should be selected to match the color of the wallpaper.
There is a method of filling in flaws by pouring crack repair material into the cracked area, or the "U-cut sealer filling method" for exterior wall cracks. For cracks on exterior walls, there is the "U-cut sealant filling method," in which a U-shaped groove is dug with a disk grinder and filled with a special epoxy resin material.
Another method is the "low-pressure injection method." This method is used when cracks are deep. Epoxy resin is placed in a special syringe-like device and set along the crack. Using the force of a spring or rubber, the repair material is injected over a period of about 24 hours.
In either method, the repair material acts like an adhesive to fill the flaw and prevent water intrusion. If the inexperienced person is using this method as a first aid measure, paint, cartridge, or pouch types are relatively easy to install. If you are looking for a high-quality installation, it is safer to ask a professional contractor to do the work.
Cracks that exceed 0.3 mm in width should be repaired as soon as possible. The reason for this is that cracks over 0.3 mm in width have a very high possibility of moisture penetration into the exterior wall.
In this case, it is recommended to have a professional contractor take a look at the cracks instead of repairing them yourself using a crack sealer. If the crack is left too long, the entire building will probably be damaged. The area to be repaired will be larger and the cost will be higher than using a crack sealer.
Crack scales, which are specially designed to measure the width of cracks, are available at home improvement stores, and crack scales can be used to self-diagnose cracks.
*Including some distributors, etc.
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A & A Melters, headquartered in Canada, is a manufacturer and supplier that specializes in manufacturing melters and related equipment. The company offers a comprehensive range of melter products and services, including electric melters, gas-fired melters, mastic melters, burners and customized melters tailored to specific industrial requirements. The company also specializes in Fire tube replacement, Maintenance, Customizing, Diesel retro-fitting and works as a full service Steel Fabricating shop. Its melters and equipment find applications in industries like Metal Casting, Foundries, and Industrial Heating.
Ranking as of August 2025
Derivation Method| Rank | Company | Click Share |
|---|---|---|
| 1 | Robotic Maintenance Vehicles |
20.0%
|
| 2 | BILON HEAVY INDUSTRY (GUANGZHOU) CO.,LTD |
20.0%
|
| 3 | Cimline |
20.0%
|
| 4 | BearCat Manufacturing |
20.0%
|
| 5 | A & A Melters |
20.0%
|
Derivation Method
The ranking is calculated based on the click share within the crack sealer page as of August 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 | 55.6% |
|
United States of America
|
3 | 33.3% |
|
Canada
|
1 | 11.1% |
158 products found - Page 2
158 products - Page 2
Candil Design Co., Ltd.
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■Mohawk Company. A strong 2-component epoxy adhesive. A two-component epoxy adhesive that cures quickly and has high durability and weather resista...
Sun Denzai Kogyo Co., Ltd.
260+ people viewing
Last viewed: 1 day ago
■Purpose of use - Anti-corrosion repair of galvanized, welded and fused parts and edges of general steel materials. ・An alternative to galvanizing...
Candil Design Co., Ltd.
220+ people viewing
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■For filling and repairing deep scratches on floors etc. Perfectly repairs chips, gouges, cracks, and gaps in wooden products. This is an environme...
EPJ Co., Ltd.
140+ people viewing
Last viewed: 1 day ago
Umetaro Kit is a cement-based repair material, so it is compatible with concrete. The materials necessary for repair work are packaged in a kit, so...
