More often than not, waterproofing chemicals for interiors are not effective.

Before waterproofing your interiors, it is required to break and remove the plaster.

Our product Polyalk WP offers a solution to both problems.

It is the waterproofing expert that eliminates the need for breaking and removal of plaster.



longer lifeLonger Duration

Waterproofing for a longer duration

ease of applicationEasy Application

You can easily apply to the interiors without any training

protection from dampness and efflorescenceProtection from Dampness And Efflorescence

Your interiors are protected from dampness and efflorescence


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How to apply Polyalk WP on the internal wall? (new construction)

Apply Polyalk WP directly on the interior blockwork/brickwork, followed by a dash/chat coat of plaster and, subsequently, first and second coats of plaster.

How to apply Polyalk WP on the existing internal wall? (old construction)

Surface Preparation:

  • Clean the surface and remove oil or any loosely held plaster/powder.
  • For loose and hollow surfaces, we recommend replastering.
  • Cure the masonry surface before the application.
  • If there is a presence of efflorescence on existing surfaces, use efflorescence cleaner for cleaner according to its usage or clean it with a wire brush followed by thorough water washing.
  • Hairline cracks must be filled with Polyfill AR, while larger cracks and damaged areas must be filled with polymer-modified cement mortars.
  • Wash the entire surface with water with a brush.
  • Detach all weak sand particles, instant lime, POP, black spots, fungus, and moss on moisture-affected walls.
  • Before applying Polyalk WP, the surface needs to be in a dry saturated condition.

Application Method:

  • If the surface has dampness and/or efflorescence, follow the below procedure -
  • Prepare the surface according to the process above.
  • Remove the existing putty till the plaster level across the total affected area.
  • Apply the first coat of Polyalk WP across the entire affected area.
  • Allow it to dry for 6-8 hrs.
  • Apply 2nd Coat of Polyalk WP perpendicular to the first coat.
  • Allow it to dry for 6-8 hrs.
  • Apply two coats of wall putty over Polyalk WP.
  • Allow it to dry for 6-8 hrs.

Our products  successfully protected and waterproof one of Mumbai's largest townships, India's largest refinery, the world's largest cricket stadium, and India's longest elevated road.

Sunanda Global has won the prestigious “Product Innovator of the Year award" in the construction chemicals category for 3 years(2012, 2013, and 2015) instituted by FICCI & Department of Chemicals, Govt. of India in the presence of Shri. Narendra Modi, Prime Minister of India.

Sunanda Global has been voted among the ‘Top 5 Waterproofing Brands in India’ in the Experts' Choice Rankings.

projects of sunanda global

Check out some interesting videos

External Wall Waterproofing

You can waterproof the external walls with Polyalk WP in just 4 simple steps. 

Waterproofing World’s Largest Cricket Stadium

Our high-performance materials were used in waterproofing the largest cricket stadium in the world.

Frequently Asked Questions(FAQ)

Q - Is water required in the waterproofing process of Polyalk WP?

A - No, unnecessary in waterproofing your interiors with Polyalk WP.

Q - What is the coverage of Polyalk WP?

A - Yes, it offers coverage of 4-5 m2 per kg per coat on smooth, non-absorbent surfaces.

Q - What are the packing sizes available for Polyalk WP?

A - Polyalk WP is available in packs of 1 Kg and 5 Kg.

Q - Will it protect against dampness and efflorescence?

A - It protects against dampness and efflorescence.

Q - What are the application areas of your home where Polyalk WP can be applied?

A - Polyalk WP is applied to your home's kitchen, toilets, terraces, internal and external walls.

Q - How to apply Polyalk WP?

A - You can apply Polyalk WP in the following manner:

Surface preparation:

  • Surface preparation of the surface which you will waterproof is essential.
  • Scrub and clean the surface.
  • Remove laitance, dirt, paint, loose flakes, particles, foreign matter, etc., using a vacuum cleaner, high-pressure water jet, wet sandblasting, or wire brushing.
  • Ensure that the concrete surface possesses an open pore surface texture.

Filling of Cracks:

  • Repair and make good; any faulty concrete in the form of cracks, honeycombing, etc., and mortar with Polyalk EP or Sunmix as per specifications.
  • Fill hairline cracks on plaster/mortar with Polyfill AR as per specifications.
  • Remove all curing compounds and sealers.

Application of Polyalk WP:

  • Moisten the surface with a water jet for 24 hours before applying Polyalk WP.
  • Mix 1 Kg of Polyalk WP with 1.25 Kg of fresh white or grey cement by weight using a low-speed stirrer to form a slurry. (Any cement make is compatible).
  • Continuous hand-mixing to form a lump-free consistency may also be adequate.l
  • Keep the mix continuously stirred.
  • Apply the slurry by brush/roller to the damp surface.
  • Apply two more coats of similar slurry at 24 hrs intervals.
  • Allow setting for 24-48 hours.
  • Cure the coating for 2-3 days by sprinkling water three times daily on the vertical surface (external walls) and using moist gunny bags on the horizontal surface (terraces, toilets, etc.).
  • Provide a protective screed/plaster for horizontal surfaces on the Polyalk WP coating.