External walls waterproofing protects against water penetration in areas such as foundations, basements, and exposed building facades.
Waterproofing solutions vary based on application areas, including basements and water tanks (cementitious waterproofing), roofs and facades (elastomeric and polyurea coatings), wet areas like bathrooms (liquid-applied membranes), and heavy-duty industrial zones (polyurethane and polyurea systems). Selecting the right waterproofing method ensures durability, moisture protection, and long-term structural integrity.
Basement raft waterproofing involves applying high-performance membranes, crystalline coatings, or polyurea/polyurethane systems to prevent water ingress and structural deterioration. These solutions ensure long-term durability by creating a seamless, moisture-resistant barrier.
HDPE (High-Density Polyethylene) is a thermoplastic polymer known for its high strength-to-density ratio, chemical resistance, and durability. It is widely used in construction applications, including waterproofing membranes, due to its impermeability to water and excellent performance in harsh environments.
SBS (Styrene-Butadiene-Styrene) is a thermoplastic elastomer that combines the properties of rubber and plastic, offering excellent flexibility and elongation. It is widely used in modified bitumen membranes, enhancing their durability, crack resistance, and performance under extreme temperature variations.
PVC (Polyvinyl Chloride) membranes are durable, flexible synthetic waterproofing materials known for their excellent resistance to UV rays, chemicals, and weathering. These membranes are commonly used in roofing and waterproofing applications, offering long-lasting protection and easy installation.
Crystalline waterproofing uses advanced reactive chemicals that penetrate concrete to form insoluble crystals, blocking water pathways and sealing microcracks. This technology enhances durability, providing long-term waterproofing that self-heals minor cracks over time.
Basement retaining wall waterproofing involves applying protective barriers like crystalline coatings, membranes, or elastomeric solutions to prevent water infiltration and structural damage. Proper drainage and surface preparation enhance long-term effectiveness and durability.
HDPE (High-Density Polyethylene) is a thermoplastic polymer known for its high strength-to-density ratio, chemical resistance, and durability. It is widely used in construction applications, including waterproofing membranes, due to its impermeability to water and excellent performance in harsh environments.
SBS (Styrene-Butadiene-Styrene) is a thermoplastic elastomer that combines the properties of rubber and plastic, offering excellent flexibility and elongation. It is widely used in modified bitumen membranes, enhancing their durability, crack resistance, and performance under extreme temperature variations.
PVC (Polyvinyl Chloride) membranes are durable, flexible synthetic waterproofing materials known for their excellent resistance to UV rays, chemicals, and weathering. These membranes are commonly used in roofing and waterproofing applications, offering long-lasting protection and easy installation.
ARMOURTHANE® SULABH (सुलभ) is a 2-component polyurea-based elastomeric waterproofing coating that forms a seamless, rubbery, and elastic membrane upon curing. This high-solids coating, reinforced with leafing pigments, is designed for high-build applications and can be applied using a brush, airless spray, or trowel. It cures to a permanently flexible membrane, resistant to extreme temperatures, ensuring durability without cracking at low temperatures or thermal damage at high temperatures.
Tensile Strength (ASTM D412): >5 MPa @ 25°C
Elongation (ASTM D412): > 400% @ 25°C
ARMOURTHANE® VIRAJ is a liquid-applied, 2-component elastomeric membrane based on polyurea chemistry, designed for high-performance waterproofing. It forms a flexible, seamless, and high-build film with excellent resistance to temperature extremes, preventing cracking or thermal blow. Suitable for roofs, terraces, podiums, water tanks, bridges, basements, and crack bridging, it bonds effectively to various substrates like concrete, metal, wood, glass, and more when properly primed. ARMOURTHANE® VIRAJ White is ideal for UV-exposed surfaces like roofs and terraces. It can be applied by brush, spray, or trowel for durable and long-lasting protection.
Tensile Strength (ASTM D412): >11 MPa @ 25°C
Elongation (ASTM D412): > 350% @ 25°C
ARMOURTHANE® VAJRA is a liquid-applied, 2-component elastomeric membrane based on Aliphatic polyurea chemistry, forming a flexible, seamless, and high-build waterproofing film with reinforcing properties. It is highly durable, resistant to temperature extremes, and does not crack or suffer thermal blow. ARMOURTHANE® VAJRA White offers excellent UV resistance, making it ideal for roofs and terraces. Suitable for roofs, terraces, podiums, water tanks, gardens, bridges, and decks, it bonds effectively to substrates like concrete, metal, wood, glass, and more with proper priming. It can be applied by brush, spray, or trowel for long-lasting, reliable protection.
Tensile Strength (ASTM D412): >15 MPa @ 25°C
Elongation (ASTM D412): > 300% @ 25°C
ARMOURTHANE FLEX1515 is a fast cure, two-component polyaspartic polyurea sealer and finish coating that provides exceptional impact, abrasion, and chemical resistance with UV stability. It offers key features such as being walkable in 3 hours, resistance to hot-tire pickup, long-term crack and freeze/thaw resistance, low shrinkage, and excellent chemical and stain resistance. Suitable for exposed roofing, decks, car parks, ramps, and other surfaces, it provides reliable protection for both new and existing structures.
Tensile Strength : >15 N/mm²
ULTRATHANE 0950 is a two-component liquid-applied elastomeric membrane based on hybrid polyurea chemistry, forming a high-build, flexible, and seamless film. It offers excellent resistance to temperature extremes, preventing cracking in low temperatures and thermal blow at elevated temperatures. Suitable for roofs and terraces exposed to UV rays, it bonds effectively to various substrates, including felt, asphalt, concrete, wood, metal, and more with proper priming. It can be brush, spray, or trowel applied and cures into a durable, rubbery membrane, providing long-lasting protection against the elements. ULTRATHANE 0950 White is particularly effective for UV-exposed areas, though it has lower color stability.
Tensile Strength (ASTM D412): >9 MPa @ 25°C
Elongation (ASTM D412): > 500% @ 25°C
ULTRATHANE 1250 is a two-component liquid-applied elastomeric membrane based on hybrid polyurea chemistry, creating a high-build, rubbery, and elastic film. It offers exceptional flexibility, with high tensile strength and elongation, making it ideal for structures subject to thermal movement and dynamic conditions. It can be brush, spray, or trowel applied and cures into a seamless, durable membrane that resists cracking in low temperatures and thermal blow in high temperatures. ULTRATHANE 1250 White is particularly suitable for UV-exposed roofs and terraces, although it has low color stability. It is highly resistant to impact from foot or vehicle traffic and provides reliable protection against the elements, even in challenging climates.
Tensile Strength (ASTM D412): >12 MPa @ 25°C
Elongation (ASTM D412): > 500% @ 25°C
ULTRATHANE 1530 is a two-component liquid-applied elastomeric membrane based on hybrid polyurea chemistry, forming a high-build, rubbery, and elastic film. It provides a permanently flexible, seamless membrane that withstands extreme temperatures, preventing cracks in cold weather and thermal blow in heat. ULTRATHANE 1530 White is ideal for UV-exposed roofs and terraces, though it has low color stability. It is highly effective for waterproofing and can be applied directly to the substrate to seal small holes. Available in white, light grey, medium grey, and green, ULTRATHANE 1530 offers reliable, long-lasting performance in various climates.
Tensile Strength (ASTM D412): >15 MPa @ 25°C
Elongation (ASTM D412): > 300% @ 25°C
ARMOURTUFF® P2119 is a spray-applied pure polyurea coating with fast-curing properties, offering exceptional mechanical, chemical, thermal, and weather resistance. It provides a uniform, elastic, waterproof membrane without seams or joints and bonds well to substrates like concrete, steel, and various waterproofing layers. Its versatility allows application on irregular surfaces and is ideal for green roofs, flower beds, and more. With a medium elongation and the ability to bridge cracks up to 2mm, it ensures long-term crack resistance, superior freeze/thaw resistance, and minimal shrinkage. ARMOURTUFF® P2119 is perfect for applications such as concrete basements, wastewater treatment plants, bridge piers, parking floors, and terrace gardens.
Tensile Strength: 21 N/mm²
Elongation: 190%
Armourtuff P2440, Spray Applied Polyurea based Waterproofing Coating
ARMOURTUFF® P2440 is a spray-applied pure polyurea coating with fast-curing properties, offering superior mechanical, chemical, thermal, and weather resistance. This elastomeric, hydrophobic coating creates a uniform, seamless waterproof layer and bonds effectively to concrete, steel, and various waterproofing layers, even on irregular substrates. Its high elongation and ability to bridge cracks up to 2mm ensure long-term crack resistance and excellent freeze/thaw performance. ARMOURTUFF® P2440 is perfect for applications like concrete basements, swimming pools, water tanks, bridge piers, podiums, and terrace gardens.
Tensile Strength: 24 N/mm²
Elongation: >400%
Armourtuff H1255, Spray Applied Polyurea based Waterproofing Coating
ARMOURTUFF® H1255 is a spray-applied hybrid polyurea coating with fast-curing properties, offering exceptional mechanical, chemical, thermal, and weather resistance. It forms a seamless, elastic waterproof barrier, bonding well to concrete, steel, and various waterproofing layers, including irregular substrates. The coating is suitable for applications such as green roofs and flower beds and can be applied at thicknesses from 1 to 5 mm in a single layer. ARMOURTUFF® H1255 boasts high elongation, crack bridging (up to 2mm), long-term crack resistance, superior freeze/thaw performance, and very low shrinkage. It is ideal for waterproofing concrete basements, swimming pools, water tanks, bridge piers, podiums, and terrace gardens.
Tensile Strength: 12 N/mm²
Elongation: >500%
Armourtuff H1535, Spray Applied Polyurea based Waterproofing Coating
ARMOURTUFF® H1535 is a fast-curing, spray-applied hybrid polyurea coating that provides excellent mechanical, chemical, thermal, and weather resistance. It forms a seamless, elastic, waterproof layer, bonding effectively to concrete, steel, and other common substrates, including irregular ones. Suitable for applications such as green roofs and flower beds, it can be applied in thicknesses ranging from 1 to 5 mm in a single pass. Notable for its high elongation, crack bridging (up to 2mm), long-term crack resistance, freeze/thaw resistance, and low shrinkage, ARMOURTUFF® H1535 is ideal for waterproofing concrete basements, swimming pools, water tanks, bridge piers, podiums, and terrace gardens.
Tensile Strength: 15 N/mm²
Elongation: >350%
FlexiThane® AR145 is a high-performance, single-component polyurethane elastomeric coating that cures with atmospheric moisture to form a seamless, flexible, and durable membrane. Designed for high-build applications, it can be applied using a brush, roller, trowel, or airless spray without mixing or heating. It offers excellent adhesion to various substrates like concrete, tiles, wood, metal, and roofing materials. It resists UV radiation, weathering, aging, and extreme temperatures, ensuring it remains crack-free and elastic over time, making it ideal for long-lasting waterproofing solutions.
FlexiThane® AR300 is a high-performance, pure polyurethane elastomeric waterproofing coating that cures to form a flexible, seamless membrane, providing excellent adhesion to a wide range of substrates. Its UV-reflective white color offers cooling effects, while its elastomeric properties ensure resistance to temperature extremes and long-lasting durability. It is available in 4 grades- FlexiThane® AR300 SL: Self leveling grade, FlexiThane® AR300 R: Roller grade, FlexiThane® AR300 S: Spray grade, FlexiThane® AR300 T: Trowel grade
FlexiThane AR130 is a high-performance, elastomeric polyurethane coating that cures to form a flexible, seamless membrane, offering excellent adhesion to various substrates. Unlike traditional bitumen products, it remains resistant to UV radiation, aging, and extreme temperatures, making it ideal for long-lasting waterproofing and weatherproofing applications. It is available in 4 grades- FlexiThaneAR130SL: Self leveling grade, FlexiThane® AR130 R: Roller grade, FlexiThane® AR130 S: Spray grade, FlexiThane® AR130 T: Trowel grade
External walls waterproofing protects against water penetration in areas such as foundations, basements, and exposed building facades.
Aquasmart PU is a high-quality polyurethane-based waterproofing coating designed for metal, concrete, and non-metal surfaces, offering superior durability, UV resistance, and fire retardancy. It provides a reflective, flexible, and waterproof membrane, ideal for a range of substrates, including metal roofs, brick walls, and cured concrete.
Water based polyurethane coating for waterproofing & weatherproofing exterior and interior surfaces, with an advanced polymer technology. Being single component, it is brush or roller applied waterproofing membrane giving highly durable performance.
Block wall waterproofing involves applying sealants or coatings to prevent water penetration, protecting the structure from moisture damage and improving durability.
Aquasmart PU is a high-quality polyurethane-based waterproofing coating designed for metal, concrete, and non-metal surfaces, offering superior durability, UV resistance, and fire retardancy. It provides a reflective, flexible, and waterproof membrane, ideal for a range of substrates, including metal roofs, brick walls, and cured concrete.
Water based polyurethane coating for waterproofing & weatherproofing exterior and interior surfaces, with an advanced polymer technology. Being single component, it is brush or roller applied waterproofing membrane giving highly durable performance.
Roof and terrace waterproofing involves using flexible membranes or coatings to prevent water infiltration and protect against weathering, ensuring long-term durability.
ARMOURTHANE® SULABH (सुलभ) is a 2-component polyurea-based elastomeric waterproofing coating that forms a seamless, rubbery, and elastic membrane upon curing. This high-solids coating, reinforced with leafing pigments, is designed for high-build applications and can be applied using a brush, airless spray, or trowel. It cures to a permanently flexible membrane, resistant to extreme temperatures, ensuring durability without cracking at low temperatures or thermal damage at high temperatures.
Tensile Strength (ASTM D412): >5 MPa @ 25°C
Elongation (ASTM D412): > 400% @ 25°C
ARMOURTHANE® VIRAJ is a liquid-applied, 2-component elastomeric membrane based on polyurea chemistry, designed for high-performance waterproofing. It forms a flexible, seamless, and high-build film with excellent resistance to temperature extremes, preventing cracking or thermal blow. Suitable for roofs, terraces, podiums, water tanks, bridges, basements, and crack bridging, it bonds effectively to various substrates like concrete, metal, wood, glass, and more when properly primed. ARMOURTHANE® VIRAJ White is ideal for UV-exposed surfaces like roofs and terraces. It can be applied by brush, spray, or trowel for durable and long-lasting protection.
Tensile Strength (ASTM D412): >11 MPa @ 25°C
Elongation (ASTM D412): > 350% @ 25°C
ARMOURTHANE® VAJRA is a liquid-applied, 2-component elastomeric membrane based on Aliphatic polyurea chemistry, forming a flexible, seamless, and high-build waterproofing film with reinforcing properties. It is highly durable, resistant to temperature extremes, and does not crack or suffer thermal blow. ARMOURTHANE® VAJRA White offers excellent UV resistance, making it ideal for roofs and terraces. Suitable for roofs, terraces, podiums, water tanks, gardens, bridges, and decks, it bonds effectively to substrates like concrete, metal, wood, glass, and more with proper priming. It can be applied by brush, spray, or trowel for long-lasting, reliable protection.
Tensile Strength (ASTM D412): >15 MPa @ 25°C
Elongation (ASTM D412): > 300% @ 25°C
FlexiThane® AR145 is a high-performance, single-component polyurethane elastomeric coating that cures with atmospheric moisture to form a seamless, flexible, and durable membrane. Designed for high-build applications, it can be applied using a brush, roller, trowel, or airless spray without mixing or heating. It offers excellent adhesion to various substrates like concrete, tiles, wood, metal, and roofing materials. It resists UV radiation, weathering, aging, and extreme temperatures, ensuring it remains crack-free and elastic over time, making it ideal for long-lasting waterproofing solutions.
FlexiThane® AR300 is a high-performance, pure polyurethane elastomeric waterproofing coating that cures to form a flexible, seamless membrane, providing excellent adhesion to a wide range of substrates. Its UV-reflective white color offers cooling effects, while its elastomeric properties ensure resistance to temperature extremes and long-lasting durability. It is available in 4 grades- FlexiThane® AR300 SL: Self leveling grade, FlexiThane® AR300 R: Roller grade, FlexiThane® AR300 S: Spray grade, FlexiThane® AR300 T: Trowel grade
FlexiThane AR130 is a high-performance, elastomeric polyurethane coating that cures to form a flexible, seamless membrane, offering excellent adhesion to various substrates. Unlike traditional bitumen products, it remains resistant to UV radiation, aging, and extreme temperatures, making it ideal for long-lasting waterproofing and weatherproofing applications. It is available in 4 grades- FlexiThaneAR130SL: Self leveling grade, FlexiThane® AR130 R: Roller grade, FlexiThane® AR130 S: Spray grade, FlexiThane® AR130 T: Trowel grade
Exposed roofs waterproofing involves applying protective membranes or coatings to prevent water infiltration, tailored to areas like terraces, balconies, and flat roofs.
Aquasmart PU is a high-quality polyurethane-based waterproofing coating designed for metal, concrete, and non-metal surfaces, offering superior durability, UV resistance, and fire retardancy. It provides a reflective, flexible, and waterproof membrane, ideal for a range of substrates, including metal roofs, brick walls, and cured concrete.
Water based polyurethane coating for waterproofing & weatherproofing exterior and interior surfaces, with an advanced polymer technology. Being single component, it is brush or roller applied waterproofing membrane giving highly durable performance.
ARMOURTHANE FLEX1515 is a fast cure, two-component polyaspartic polyurea sealer and finish coating that provides exceptional impact, abrasion, and chemical resistance with UV stability. It offers key features such as being walkable in 3 hours, resistance to hot-tire pickup, long-term crack and freeze/thaw resistance, low shrinkage, and excellent chemical and stain resistance. Suitable for exposed roofing, decks, car parks, ramps, and other surfaces, it provides reliable protection for both new and existing structures.
Tensile Strength : >15 N/mm²
ARMOURTHANE GUARD is a fast cure, two-component aliphatic polyaspartic polyurea sealer and finish coating designed for decorative and protective applications with UV stability. Versatile and multipurpose, it can be used as a primer, mid-coat, or top coat for interior and exterior surfaces. Key features include walkability within 4 hours, resistance to hot-tire pickup, superior freeze/thaw and crack resistance, low shrinkage, and excellent chemical and stain resistance, including fuel oil and Skydrol. It is suitable for roofs, decks, car parks, ramps, industrial floors, warehouses, and sports stadium service-ways. Anti-skid properties can also be incorporated for enhanced safety.
Tensile Strength : 30 N/mm²
ARMOURTHANE® POLYASPER 170 is a fast cure, two-component aliphatic polyaspartic polyurea coating designed for superior anti-corrosion and long-term structural protection with UV stability. It is ideal for both new and old civil structures, offering direct-to-metal application for environments like bridges, refineries, power plants, windmills, and steel structures in airports, stadia, and tall buildings. Key benefits include single-coat protection for C2 and C3 corrosive environments and a two-coat system for C4 and C5 environments (ISO 12944). It cures at low temperatures, develops early hardness, and provides corrosion protection within 4 hours, ensuring quick return to service.
Toilet, bathroom, and kitchen waterproofing involves applying moisture-resistant membranes or coatings to prevent water seepage, protect surfaces, and avoid mold growth.
Water tank waterproofing varies based on application areas, with specific solutions for potable water, sewage, and industrial tanks to ensure durability and safety.
Sewage tank waterproofing focuses on preventing leakage and corrosion, using chemical-resistant coatings to ensure structural integrity and avoid contamination.
Podium waterproofing involves using durable, high-performance membranes or coatings to protect the structure from water infiltration, especially in areas exposed to heavy traffic and weather conditions.
FlexiThane® AR145 is a high-performance, single-component polyurethane elastomeric coating that cures with atmospheric moisture to form a seamless, flexible, and durable membrane. Designed for high-build applications, it can be applied using a brush, roller, trowel, or airless spray without mixing or heating. It offers excellent adhesion to various substrates like concrete, tiles, wood, metal, and roofing materials. It resists UV radiation, weathering, aging, and extreme temperatures, ensuring it remains crack-free and elastic over time, making it ideal for long-lasting waterproofing solutions.
FlexiThane® AR300 is a high-performance, pure polyurethane elastomeric waterproofing coating that cures to form a flexible, seamless membrane, providing excellent adhesion to a wide range of substrates. Its UV-reflective white color offers cooling effects, while its elastomeric properties ensure resistance to temperature extremes and long-lasting durability. It is available in 4 grades- FlexiThane® AR300 SL: Self leveling grade, FlexiThane® AR300 R: Roller grade, FlexiThane® AR300 S: Spray grade, FlexiThane® AR300 T: Trowel grade
FlexiThane AR130 is a high-performance, elastomeric polyurethane coating that cures to form a flexible, seamless membrane, offering excellent adhesion to various substrates. Unlike traditional bitumen products, it remains resistant to UV radiation, aging, and extreme temperatures, making it ideal for long-lasting waterproofing and weatherproofing applications. It is available in 4 grades- FlexiThaneAR130SL: Self leveling grade, FlexiThane® AR130 R: Roller grade, FlexiThane® AR130 S: Spray grade, FlexiThane® AR130 T: Trowel grade
Multichem Group is a pioneering Indian corporation with over three decades of experience in the construction chemical industry. Offering 600+ innovative products, we cater to diverse sectors like infrastructure, industrial zones, coastal applications, and smart cities
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