5 Must-Have Waterproofing Products for New Homes

Waterproofing your home is an important step in making a beautiful shelter for your family. The purpose of your home is to provide a safe, comfortable, and dry haven from external intrusions. However, for the house to be safe and protected, waterproofing solutions are necessary. With the diverse weather conditions, ranging from scorching heat that generates UV rays to extreme monsoons that bring heavy rains which can damage your infrastructure.

A properly waterproofed home ensures a place that is not just dry, but also structurally sound, preventing cracks, leaks, and potential mold growth. Every part of the house should be focused on, starting with applying a waterproof roof coating, and extending to waterproofing external walls, balconies, bathrooms, and even basements to ensure comprehensive protection. This translates into a healthier living environment for your family. In this article, we will highlight some of the best waterproofing products that are a great investment in your family’s well-being and the long-term security of your beautiful shelter. 

POLYALK WP: Polymeric waterproofing coating

Applications

• Roofing types: flat/sloping slabs, chajjas, vaulted roofs, domes
• Flooring, external walls, bathrooms, toilets, balconies
• Overhead/underground water tanks, reservoirs, drainage pipe joints
• Protective coating for RCC flooring, substructures against sulfate attacks

Features

• Mixes easily with cement for an impermeable film
• Alkaline, prevents carbonation, suitable for damp conditions
• High flexural strength and adhesion
• Base waterproofing coat compatible with SUNEXT 8

Application Process

1. Surface Preparation:
   • Clean thoroughly, remove dirt, paint, loose particles
   • Ensure open-pore texture, repair cracks, moisten surface
2. Mixing:
   • Mix 1 part POLYALK WP with 1.25 parts cement
   • Stir continuously for lump-free consistency
3. Application:
   • Apply slurry with brush/roller, add 2-3 coats at 24-hour intervals
   • Cure for 2-3 days
   • Protect flat surfaces with screed/plaster

POLYALK WP provides durable, long-lasting waterproofing for diverse structures.

SUNACE: 100% acrylic, decorative, waterproofing, heat-insulating, exterior coating

Applications

• Protects external surfaces against carbonation and environmental attacks
• Provides a durable, long-lasting finish for external surfaces
• Withstands extreme weather conditions like heavy rainfall, high humidity, and heat

Features

• Single-component liquid applied by brush
• Protects against water leakages and dampness
• Prevents rise in internal temperature
• No peeling or cracking
• Prevents the formation of fungi and algae
• Excellent UV stability
• Good resistance to normal wear and tear
• No priming coat is needed, saving time and expenses

Preparation

• Clean thoroughly: remove dirt, loose particles, flaking paint, etc.
• Check and fill cracks with POLYFILL AR; use POLYALK EP for specialized cracks
• Remove scales, rust, and grease from steel surfaces

Application Process

1. Preparation:
   • Stir the container well for uniform consistency.
2. Prime Coat:
   • Mix 1L SUNACE with 1000ml water.
   • Apply using a brush, roller, or spray.
3. Top Coat:
   • Mix 1L SUNACE with 400ml water and stir well.
   • Apply two or three coats over the prime coat as recommended.
   • Maintain 4-6 hour intervals between coats.

SUNACE ensures comprehensive protection and a lasting finish for external surfaces, ideal for various climatic conditions.

HACK AID PLAST: Bonding agent for plaster and glazed tiles

Applications

Hack Aid Plast is suitable for waterproofing a variety of surfaces including roof slabs (flat or sloping), chajjas, vaulted roofs, external walls, bathrooms, balconies, overhead or underground water tanks, and as a protective coating for RCC floorings and substructures.

Features

• Mixes easily with cement to form an impermeable co-matrix film.
• Alkaline and compatible with concrete.
• Does not facilitate carbonation.
• Can be applied in moist conditions.
• High flexural strength and extraordinary adhesion.

Preparation

• Thoroughly scrub and clean the surface to remove dirt, paint, loose particles, etc.
• Ensure the concrete surface has an open pore texture.
• Repair any faulty concrete, such as cracks or honeycombing.
• Fill hairline cracks with POLYFILL AR.
• Moisten the surface 24 hours before applying Hack Aid Plast.

Application Process

• Mix 1 part Hack Aid Plast with 1 or 1.25 parts fresh white or grey cement.
• Continuously stir the mix to form a lump-free consistency.
• Apply the slurry by brush or roller to the damp surface.
• Apply two or three more coats at 24-hour intervals.
• Allow the coating to set for 24-48 hours, then cure it by sprinkling water or using moist gunny bags.
• For flat surfaces, provide a protective screed or plaster on the Hack Aid Plast coating.

SUNKOTE WP+: Single component, UV resistant, elastomeric, high build, acrylic waterproof coating

Applications

• Suitable for all types of RCC surfaces such as roofs, chajjas, parapet walls, external walls, sunken areas, toilets, etc.
• Can be used for both flat and sloping roofs, existing and new structures.

Features

• High build, strong, thick, elastomeric, liquid-applied waterproofing membrane system
• Highly elastic and resilient coating withstands cracks up to 2 mm and accommodates thermal movements
• UV resistant with anti-fungal properties
• High tensile strength, tear resistance, and adhesion to substrate
• A non-toxic and breathable membrane allows concrete surfaces to breathe

Preparation

• Thoroughly clean the surface by washing and removing dust, dirt, oil, grease, and loose particles
• Repair damaged portions with polymer-modified mortar on existing roofs
• Prime the surface with POLYALK WP or SUNPRIME WP and allow it to cure

Application Process

1. First Coat:
   • Apply the first coat of SUNKOTE WP+ after the primer has cured.
   • Ensure a uniform application and allow it to cure for 24 hours.
2. Second Coat:
   • Apply the second coat of SUNKOTE WP+ perpendicular to the first coat for uniform masking and even application.
   • Allow the membrane to cure for 24-48 hours.
3. Final Step:
   • Apply a protective screed layer with an adequate slope for proper drainage.

SUNKOTE WP+ provides a durable, elastic, and resilient waterproofing layer for various RCC surfaces, ensuring long-lasting protection and superior performance.

SUNPRUFE PU1K: Single component, liquid applied, polyurethane waterproofing and sealing membrane

Applications

• Slabs of RCC roofs, podiums, parking garages, RCC walls
• Bridge decks, shopping malls, plaza areas
• Water retaining structures like OHWTs, UGWTs, ETPs, STPs, etc.
• Landscaped areas
• Under terrazzo or tile floors, under shower pans, kitchen, and bathroom floors

Features

• Single-component, easily applied by brush, roller, wiper, squeegee, or spray
• Strong adhesion to concrete surfaces, remains flexible under extreme temperatures
• Provides seamless waterproofing, unlike sheet-type membranes
• A strong, thick, flexible membrane eliminates the need for a reinforcing layer

Preparation

• Clean the surface thoroughly, removing all foreign matter, dirt, dust, paint, oil, and grease using a stiff nylon or steel bristled brush
• Fill voids and cracks, and level all irregular surfaces with polymer-modified repair mortar, allowing it to cure for at least 24 hours
• Prime the surface using SUNPRIME PU and air cure for 30 minutes before applying the first coat of SUNPRUFE PU1K

Application Process

1. First Coat:
   • Apply SUNPRUFE PU1K in two coats at a dosage of 1.5 Kg/m².
   • Allow the first coat at 1 Kg/m² to cure until ‘tack free’.
2. Second Coat:
   • Apply the second coat of SUNPROOF PU1K at 0.5 Kg/m².
   • Allow it to air cure for a minimum of 12-48 hours depending on ambient conditions.
3. Final Step:
   • Apply a protective screed layer with an adequate slope for proper drainage.

SUNPRUFE PU1K ensures a robust and flexible waterproofing layer, ideal for a variety of applications, providing long-lasting protection and superior performance.

Waterproofing is not an option, it is vital for preserving your building’s structural integrity, life, safety, appearance, and well-being of its occupants. The risks of neglecting this critical aspect range from structural damage to health hazards, highlighting the importance of proactive measures. Given the technical complexity of waterproofing, seeking the expertise of the best waterproofing company is a wise decision. A reputable provider can tailor solutions to your property’s specific needs, ensuring long-lasting protection. 

At Sunanda Global, we continually rely on our market-driven research and development to understand the world of construction chemicals. We’ve set up cutting-edge research labs and tech centres in Mumbai’s industrial hub with top-notch analytical tools. With our expertise, we continue to be the top waterproofing contractors in Mumbai and in many other cities. Our waterproofing solutions include waterproofing coatings, epoxy coatings, tile adhesive, liquid-applied joint-free membranes, waterproofing admixtures, self-adhesive waterproofing membranes, etc. 

As you plan your next construction project, remember that investing in quality waterproofing services is investing in your property’s future.