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Sunanda Global

#Waterproofing Chemicals for Roofs

Waterproofing Solutions for New and Existing Roofs

Choosing the right waterproofing chemicals for a roof depends on the substrate, exposure, roof configuration, existing condition, and type of protection required. Sunanda Global offers coating, crystalline, cementitious, and polyurethane technologies for waterproofing flat and sloping RCC roofs, chajjas, parapets, and other concrete surfaces.

16 National Offices

5 International Offices

45+ Years in the Industry

5% Annual Revenue Invested in R&D

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    Waterproofing Chemicals and Products for Roofs

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    POLYALK WP

    A polymeric waterproofing coating suitable for flat and sloping roof slabs, chajjas, folded plate roofs, vaulted roofs, and domes, as well as other concrete surfaces.
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    POLYALK WP+

    A two-component, surface-applied capillary waterproofing coating of crystalline type for flat and sloping roof slabs, chajjas, folded plate roofs, vaulted roofs, domes, and other concrete structures.

    wall waterproofing

    SUNKOTE WP+

    A single-component, UV-resistant, high-build elastomeric acrylic waterproof coating for RCC surfaces. It is suitable for new and existing flat or sloping roofs, chajjas, and parapet walls.

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    POLYKOTE 2C

    A two-component cementitious elastomeric waterproof coating for flat and sloping roof slabs, chajjas, folded plate roofs, vaulted roofs, domes, and other concrete applications.

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    ELASTOROOF PU

    A single-component polyurethane waterproofing and sealing membrane suitable for new and existing flat or sloping RCC roofs, along with podiums, parking garages, water-retaining structures, and landscaped areas.

    Key Projects

    Hyatt Centric MG Road, Bangalore: Waterproofing Coatings
    Hyatt Centric MG Road required waterproofing protection across its luxury hotel structure, including rooftop areas exposed to Bangalore’s changing weather conditions. Sunanda Global worked with the project teams to provide waterproofing coatings from the foundation through to the rooftop. The waterproofing treatment helped protect the structure against moisture while supporting the long-term durability of the property.
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    Key Projects

    G Corp Sky Garden and Zen Garden, Bangalore: Concrete Repair and Water Protection
    G Corp’s Sky Garden and Zen Garden residential towers in Bangalore required concrete repair to address damaged areas and strengthen the existing concrete. Sunanda Global provided a high-performance polymer for modification of cement mortar, which was mixed with cement and graded quartz sand and applied to the affected concrete surfaces. The polymer-modified mortar improved adhesion, water impermeability, tensile and flexural strength while helping compensate for shrinkage. The completed repair provided a durable, water-resistant finish across the treated areas.
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    Key Projects

    Central Vista, New Delhi: Integral Crystalline Waterproofing
    The Central Vista Redevelopment Project in New Delhi required waterproofing protection for critical substructures vulnerable to water ingress. Sunanda Global supplied integral crystalline waterproofing admixtures designed to work within the concrete and restrict moisture penetration through pores and capillary tracts. The project demonstrates Sunanda Global’s experience in providing waterproofing solutions for major infrastructure development in New Delhi.
    Hyderabad Metro

    Key Projects

    Tata’s Bombay House, Mumbai: Roof Waterproofing and Concrete Repair
    Bombay House, the headquarters of the Tata Group in Mumbai, required waterproofing and concrete repair to protect the historic structure against water infiltration. Sunanda Global used a polyurethane waterproofing membrane along with concrete repair materials to restore and protect the building. The treatment addressed the roof’s structural integrity while providing long-term protection against water ingress.
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    Key Projects

    Palais Royale, Mumbai: Hybrid Polyurethane Waterproofing
    The Palais Royale high-rise required waterproofing capable of performing under Mumbai’s heavy rainfall, humidity, and changing temperatures. Sunanda Global’s hybrid polyurethane elastomeric waterproofing coatings were used across different surfaces, including roof applications. Following surface preparation and priming, the coatings were applied to create a seamless waterproofing layer with flexibility and UV resistance suited to the project conditions.
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    Why Choose Sunanda Global for Roof Waterproofing?

    There is no single best waterproofing chemical for every roof. An exposed RCC roof, an ageing waterproofed surface, and a roof undergoing repair can require different systems. Sunanda Global offers multiple waterproofing technologies so the product can be selected according to the substrate, roof condition, exposure, and project requirements.
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    Technical Expertise

    Selecting a waterproof chemical for roof applications requires more than identifying the visible point of leakage. Our technical team considers the roof construction, surface condition, cracks, drainage, previous treatments, and exposure before recommending an appropriate waterproofing approach.

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    Transparent Pricing

    We provide clear, straightforward pricing with no hidden costs, which helps you to manage your project budgets effectively.

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    45 Years of Experience

    With more than 45 years in the construction chemicals industry, Sunanda Global brings extensive experience across waterproofing coatings, membranes, concrete protection, repair, and related applications.

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    Proven Track Record

    Our waterproofing systems have protected roofs and concrete structures across landmark developments, helping prevent water ingress and support long-term structural durability.

    Awards and Recognition

    Sunanda Global has consistently been recognized and awarded for its outstanding contributions to the construction chemicals sector. Our commitment to excellence and innovative solutions has earned us numerous accolades in the industry.
    ISO 9001: 2015 Accreditation
    ISO 9001: 2015 Accreditation
    Sunanda Global is India's only Construction Chemicals Manufacturing Company with an ISO 9001:2015 accreditation for Research and Development, showing our dedication to delivering high-quality solutions.
     ISO 14001 and ISO 45001
    ISO 14001 and ISO 45001 Accreditation
    ISO 14001 and ISO 45001 Accreditations signify Sunanda Global’s Environmental Management System (EMS) and Occupational Health and Safety Management System (OHSMS) meet internationally recognized standards.
    CE Accreditation
    CE Accreditation
    Our epoxy floor coatings carry the CE Accreditation indicating that the product complies with the essential health, safety, and environmental requirements set out by European Union directives.

    Choosing Waterproofing Chemicals Services for Your Roof

    The appropriate roof waterproofing system depends on what needs to be protected and the condition of the existing structure. New RCC roofs, ageing surfaces, previously waterproofed roofs, and areas requiring remedial work can have different requirements. Sunanda Global offers waterproofing chemicals across multiple technologies, allowing the system to be selected according to the roof rather than relying on a single treatment for every application.

    Frequently Asked Questions (FAQ)

    There is no single best waterproofing chemical for every roof. The appropriate choice depends on factors such as the roof substrate, surface condition, exposure, cracks, existing waterproofing, and whether the project involves new construction or remedial work. 

    A waterproof chemical for roof applications should be selected according to the substrate, roof configuration, exposure, existing condition, and required waterproofing system. Surface preparation and compatibility with any previous treatment should also be considered.

    The best waterproofing chemicals for roof applications exposed to sunlight should be selected with the specific exposure and system requirements in mind. For example, SUNKOTE WP+ is a UV-resistant acrylic waterproof coating intended for RCC surfaces, including flat and sloping roofs. 

    Roof leakage chemicals should not be selected solely based on the location of a visible damp patch. An older roof may also require investigation of cracks, drainage, penetrations, deteriorated surfaces, or previous waterproofing before the appropriate treatment can be determined. 

    Not necessarily. Roof geometry is one of several factors that can influence system selection. The substrate, existing condition, exposure, drainage, and application requirements should also be considered when choosing the waterproofing system. 

    That depends on the condition and compatibility of the existing coating. Poorly adhered, damaged, or incompatible material may require preparation or removal before another waterproofing system is applied. 

    Waterproofing can be planned as part of the roof construction rather than waiting for leakage to develop. This allows the waterproofing system, substrate preparation, roof details, and subsequent finishes to be considered together before the roof is completed. 

    Get in Touch
    Enhance the durability of your buildings today with premium PU-based waterproofing solutions from Sunanda Global.
    Looking for reliable epoxy and polyurethane solutions for your industrial floors? Contact us today!

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