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This section provides an overview for urethane waterproofing as well as their applications and principles. Also, please take a look at the list of 33 urethane waterproofing manufacturers and their company rankings. Here are the top-ranked urethane waterproofing companies as of January, 2025: 1.Fuhua Waterproofing Technology Co.,Ltd., 2.Zhejiang Rock New Materials CO., Ltd, 3.Cactus Industrial.
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1987~1991: Engaged in research on wire covering materials at Polymer Materials Laboratory.
1991~1997: Worked as a patent Engineer at Koike International Patent Office.
1997~2005 Worked as an intellectual property member at GE Yokogawa Medical System, currently working as a writer.
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Polyurethane waterproofing coating is a material applied to balconies, the common facilities of condominiums, and other places where waterproofing is required.
Polyurethane waterproofing coating is often used because it is relatively inexpensive, easy to work with, and can be applied to many surfaces.
Polyurethane waterproofing coating is used in many structural elements, including rooftops, balconies, open corridors in apartment buildings, and stairways. Polyurethane waterproofing coating used to waterproof these spaces can be broadly divided into two types: one-component sealants and two-component sealants, the latter being used after mixing with a hardener.
Single-component polyurethane waterproofing coating is used to waterproof balconies and similar spaces because it is very easy to work with.
There are two types of two-component polyurethane waterproofing coatings: manually-applied and sprayed. With manually-applied coatings, the base compound and curing agent are mixed and applied, then cured at the temperature of the surrounding environment. This type of coating has a rubbery, elastic surface and is commonly used for waterproofing rooftops and balconies.
The manufacturing of spray-type polyurethane waterproofing coatings started with the development of rigid polyurethane. It is applied by spraying the polyurethane and a curing agent while mixing them in a specialized machine. Since it begins to cure in less than a minute after application, it is commonly used in sloped areas and heavily-trafficked corridors and stairways.
Rigid polyurethane waterproofing coating is also used in civil engineering applications, such as bridges, thermal storage layers, and underground waterproofing. The use of polyurethane waterproofing can protect structures from water, protect concrete from salt damage and neutralization caused by carbon dioxide gas, and prevent concrete spalling. It is also used on roads to prevent deterioration caused by expansion and contraction due to vehicle traffic and snow-melting chemicals.
The spraying method also makes it possible to apply coating even in places that may not be sufficiently dry, such as uneven surfaces and underground. Furthermore, rigid polyurethane waterproofing coating has excellent chemical resistance, heat resistance, crack tracking, and abrasion resistance, and is used for coating sewage-related facilities, offshore structures, steel tanks, structures, etc.
Polyurethane waterproofing coating is a generic term for polyurethane resin or polymer. Polyurethane has exceptional properties for pressure resistance, waterproofing, and elasticity.
Single-component polyurethane waterproofing forms a waterproof film via a polymerization reaction between isocyanate (the base compound) and polyol (the curing agent). When single-component polyurethane waterproofing is applied, the isocyanate group-containing base reacts with moisture in the air to cure at the ambient temperature, so it takes about 24 hours to cure.
Two-component coatings can be further classified into two types: manually-applied and sprayed.
Manually-Applied Coatings
Manually applied coatings require the mixing of a polyisocyanate-based base compound and polyol-based curing agent before application. The base compound is a viscous liquid containing isocyanate groups at the molecular ends of the polyurethane prepolymer. The curing agent is a paste-like material containing amines, polyols, fillers, plasticizers, and stabilizers, which react with the isocyanate groups of the base compound.
When working with manually-applied two-component polyurethane waterproofing material, a pressure pump is used to dispense the material, eliminating the need for mixing equipment. The advantages of this system include improved work efficiency, less unloading work, and significant waste reduction. The mixing is done automatically, supplying a uniformly-blended coating with no risk of mixing defects.
Spray-on Coatings
Spray-on two-component polyurethane waterproofing coatings using rigid polyurethane also utilize isocyanate and polyol to form a waterproofing film. Spray-on coatings are characterized by the fact that the base compound and curing agent are each pumped under high pressure, mixed in the spray gun, and sprayed on.
The advantage of this type is that it hardens quickly, so the same material can be used for both flat and vertical surfaces. However, since spraying machines vary between manufacturers, it is essential to seek guidance from the waterproofing material manufacturer before installation.
Single-component and manually-applied two-component polyurethane waterproofing coatings are all made by solidifying the liquid material to form a waterproofing membrane. The advantage of this process is that it's relatively simple. In practice, a priming layer, which enhances adhesion, is applied to the surface before waterproofing, and the polyurethane coating is then applied on top of the primer.
However, when applied to some surfaces, such as concrete, there is a disadvantage in that cracks in the concrete are transferred to the coating, which could potentially lead to rupture. Another disadvantage is that water vapor retained in the substrate of the surface could cause swelling and other issues.
As a result, a construction method combining ventilation buffer sheets and polyurethane was developed. In this approach, a primer is applied on top of the substrate, covered with a ventilation buffer sheet, and the polyurethane waterproofing coating is applied and cured on top. With the sheet placed between the waterproofing material and the substrate, it is possible to prevent ruptures and swelling due to moisture in the substrate. Since the adoption of this method, polyurethane waterproofing, which used to be used primarily for small-scale renovations, has become viable for use in new construction and large-scale waterproofing ventures.
Just as in painting, a topcoat is a material applied as a finishing layer after the application of a polyurethane waterproofing coating.
One of the drawbacks of polyurethane waterproofing is the tendency of the coating to discolor when exposed to ultraviolet light. Also, because of how they cure, there is a risk of cracking and deterioration. A topcoat helps protect the waterproof coating from ultraviolet rays and prevent the above-mentioned deterioration.
Additionally, since polyurethane waterproofing coatings have adhesive properties, dust and dirt can easily adhere to the surface if left untreated. This can build up and be difficult to remove, so a topcoat also serves to mitigate the adhesion of dirt.
Topcoats both address the weakness of polyurethane waterproofing coatings and mitigate their deterioration. Therefore, applying a topcoat is a critical finishing step in the overall application process.
The application quantity refers to how much material is needed to optimize the performance of the polyurethane waterproofing coating.
If the specified application quantity is 0.7 kg, for example, 7 kg will be needed to cover a 10 m2 installation area. But in practice, the surface may be uneven, affecting the exact measurements of its area and its shape. Failing to consider this could result in a significant miscalculation of how much material is needed. As such, considering the shape and surface irregularities when calculating application quantity is crucial.
*Including some distributors, etc.
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GS Polymers Inc., founded in 1987, is an American manufacturer based in Mira Loma, California, offering specialty polyurethane and epoxy products. The company’s lineup includes one- and two-part adhesive systems and custom formulations. It also produces two-part epoxy and polyurethane potting compounds as well as custom potting formulations. Casting compounds and cast parts are also part of its portfolio. The company serves global customers in various industries, including the chemical, glass, and petrochemical sectors.
Hapco, Inc. is an ISO 9001:2015 certified manufacturer of thermoset polyurethanes and epoxies for use in various applications. Founded in 1969 and based in Hanover, Massachusetts, the company specializes in producing plastic extruders, pumps, power generators and welding tools for clients in oil and gas drilling, industrial manufacturing and commercial roofing. Aside from manufacturing, the company also offers custom product design and engineering, repair and calibration services for customers with niche use cases. Hapco's clients include the Ford Motor Company, General Electric and Boston Scientific.
Crossfield Products Corp. is a manufacturer of construction coating, overlay, and fluid-applied flooring materials, founded in 1938 and headquartered in California, USA. The company offers the Miracote, Dex-O-Tex, and Dex-O-Tex Marine range of products, including processed powders and specialty aggregates, clear and pigmented epoxy coatings, polyurethane and polyaspartic coatings, and polymer-modified latex underlayments. It also offers urethane concrete mortars, cementitious coatings, waterproof decking, and membranes. It exports its products worldwide, serving the marine, aerospace, manufacturing, industrial construction, and commercial industries.
Sika Corporation is based in New Jersey since 1937 as a supplier of chemical products and industrial materials. The company provides adhesives and sealants, along with roofing and flooring materials, and coatings for various surfaces with waterproofing, repairs, and protection for the construction industry and for Residential and Home improvement projects. They also deal in concrete solutions like 3D concrete printing, and various concrete systems like Self Consolidating, Waterproofing, Precast/Drycast, and even decorative concrete for numerous applications in construction or DIYs. These products also benefit the Automotive, Oil & Gas pipelines and industrial manufacturing sectors.
Polin Kimya Sanayi ve Ticaret AS is a manufacturer of polyurethane, epoxy, hydrocarbon, and acrylic, founded in 1989 and headquartered in Istanbul, Turkey. The company’s product portfolio includes adhesives, binders, EPDM granules, floor coatings, and primes. It also offers polyurethane waterproof coating systems and electrical insulation resins. The company adheres to ISO 9001:2008 and ISO 14001:2004 quality standards and is accredited by TÜRKAK, TSE, and UKAS. It caters to various sectors, including construction, industrial, marine, automotive, and sports.
Taiwan-based NANPAO Resins Chemical Group (NRCG) is a manufacturer and supplier of synthetic resins, speciality adhesives, liquid and powder coatings, and various construction materials including admixtures and grouts. The company was founded in 1963, when its dye and finishing factory was restructured to produce polyvinyl acetate adhesives. Companies in the footwear, automotive, furniture, construction, and technology industries are among the company's core clients. NRCG has factories in multiple countries including China, Vietnam, Indonesia, India, and the Philippines. These produce technologies used in medical and optical devices, as well as renewable energy sources.
STP Limited was founded in 1935 and is a manufacturer of construction chemicals, bitumen, and coal tar products based in New Delhi, India. The company offers various products such as waterproofing, road surfacing, flooring , admixtures, and coal tar products. The products have been used and applied in various projects such as Atal Tunnel, Nivedita Bridge, Delhi Metro, Bhakra Nangal Dam, and Indian Parliament Building. The factories of the company spread across Inida have certified with ISO 9001, ISO 14001, and ISO 45001 certification standards.
Suzhou Smart Building New Materials Co., Ltd., founded in 2019 and based in Suzhou City, China, is a manufacturer of waterproofing materials and waterproof membranes. The company's primary business is introducing cutting-edge foreign technology into the country and promoting novel polymer construction materials abroad. The waterproofing division of the company deals with the whole line of TPO, PVC, and EPDM roofing membranes as well as different accessories. The company holds CE and ISO 9001 certification and maintains extensive commercial relationships with clients from over 30 foreign nations.
Wasser Isolier Systeme, founded in 1978 and based in Hammfelddamm, Germany, is a manufacturer specializing in waterproofing solutions. The company offers an extensive and diverse product portfolio, including repair and strengthening mortars, polyurethane waterproofing, cementitious waterproofing, waterproofing membranes, and sealants and joint fillers. These quality products have applications in various industries, such as carpentry and joinery, filling gaps and cracks in building walls and floors, and serving as repair and filling materials for concrete and cement surfaces. Additionally, the products are used in waterproofing and stabilization projects, particularly in structures like tunnels, where water ingress prevention is crucial.
Zhejiang Herotime Machinery Co., Ltd. is a manufacturer of industrial loaders, excavators, and dumpers established in 1990 and based in Zhuji, Zhejiang, China. The company’s product lineup includes wheel loaders for earthmoving and material handling applications, skid steer loaders for construction operations, and excavators for excavation or digging. It also offers mini dumpers for moving and unloading construction materials in worksites. The company’s products are mainly used by clients in construction, engineering, and tunneling operations.
Gaco Western LLC was established in 1955 in Nashville, Tennessee, and is a manufacturer and supplier of waterproofing and insulation products used in industrial, commercial, and residential fields. The company makes roofing, decking, spray foam, and waterproofing products. It supplies roof coating and polyurethane products like U91 and A47 acrylic. The company has worked on projects like silicone roofing for Zumbro Lutheran, silicone roof coating for CarlPortland Dome, pedestrian deck waterproofing for River Gate Tower, and spray foam insulation for Christ Delong UCC Church.
Constro Chem India Pvt Ltd, established in 2012 and based in Thane, India, is a manufacturer and supplier specializing in industrial chemicals. The company's product portfolio includes injection grouts, protective pipe coatings, concrete-penetrating corrosion inhibitors, waterproofing paints, and repair and rehabilitation systems. These products are utilized in various sectors, including construction, the ready mix concrete industry, road construction, industrial projects, and housing projects. The company offers services including technical support, customer training, warranty support, consultations, and order and delivery assistance.
Bostik, established in 1889 and now headquartered at Colombes, France, is a manufacturer of adhesives and sealants for industrial, commercial and domestic purposes. The company, formerly known as Boston Blacking Company was acquired by French specialty materials player, Arkema in 2015 and offers sustainable, unique adhesive solutions. Their products category comprise DIY & Trade adhesives, construction adhesives, industrial adhesives, fire sealants and waterproofer along with other adhesive solutions. These adhesives for their sustainability, smart innovations and robust bonding against external impacts are used in aerospace, construction, general transportation, medical and walls & flooring besides various packaging requirements.
Baumerk, founded in 2011, is a construction chemical manufacturer and global supplier headquartered in Hadımköy, Turkey. The company's product catalog includes construction chemicals such as bitumen rubber-based waterproofing products, cement-based waterproofing products, admixtures, joint sealants, and repair and reinforcement systems. It also supplies construction paint systems and bitumen-based waterproofing membrane products for bridges and viaducts. The company serves over 1000 customers in over 55 countries worldwide, significantly contributing to the Turkish and international construction industry.
Tremco Roofing & Building Maintenance, headquartered in Beachwood, OH, is a manufacturer and supplier of roofing and weatherproofing solutions. The company's product range includes Cold-applied Built-Up, Modified Bitumen, Single Ply, Coatings, and Metal roofing systems. These products ensure long-term building protection, enhancing energy efficiency, sustainable construction, and safeguarding investments. Serving industries such as Building Materials, Construction, Waterproofing, and Weatherproofing, its services include offering roofing asset management, preventive maintenance, general contracting, and air barrier audits, ensuring holistic solutions for every roofing and weatherproofing challenge.
Hermes Abrasives Ltd. is based in Colchester, England, UK, and is a supplier of bonded and coated abrasives founded in 1985 as a subsidiary of Hermes Schleifmittel GmbH & Co. KG. The company offers sanding sponges for deburring or sanding operations, belts for use with polishing or finishing machines, and discs for fixed or handheld grinding operations. It also offers abrasives-coated strips, sheets, and rolls for DIY applications. The company mainly serves clients in the industrial manufacturing and OEM sectors.
Ranking as of January 2025
Derivation MethodRank | Company | Click Share |
---|---|---|
1 | Fuhua Waterproofing Technology Co.,Ltd. |
10.3%
|
2 | Zhejiang Rock New Materials CO., Ltd |
6.9%
|
3 | Cactus Industrial |
6.9%
|
4 | Bostik |
6.9%
|
5 | CTM Coatings |
5.2%
|
6 | Guangdong Huolun Building Materials Technology Development Co., Ltd. |
5.2%
|
7 | Suzhou Smart Building New Materials Co., Ltd. |
5.2%
|
8 | Fabrik Wassermann Injektion und Isolier Systeme GmbH |
5.2%
|
9 | STP Limited |
5.2%
|
10 | SIKA USA |
5.2%
|
Derivation Method
The ranking is calculated based on the click share within the urethane waterproofing 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 (%) |
---|---|---|
India | 5 | 20.0% |
United States of America | 4 | 16.0% |
China | 4 | 16.0% |
United Kingdom | 3 | 12.0% |
Turkey | 2 | 8.0% |
Germany | 2 | 8.0% |
Spain | 2 | 8.0% |
Taiwan | 1 | 4.0% |
Canada | 1 | 4.0% |
Greece | 1 | 4.0% |
19 products found
19 products
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