If you live in Mumbai, you have probably seen it: white, powdery patches forming on your bedroom or living room walls, followed by the paint blistering and falling off in flakes. In local terms, this is called "Papdi" or wall dampness. It looks terrible, ruins your expensive interior paint, and can cause respiratory issues due to hidden mold.
Most homeowners make a crucial mistake: they hire a local painter to scrape off the papdi, apply a coat of putty, and repaint it. Six months later, right after the monsoon, the papdi comes back. Why? Because you treated the symptom, not the disease.
The white powder pushing your paint off the wall is actually salt. When water enters your building's external walls through microscopic cracks during the Mumbai monsoon, it travels through the bricks. As it moves, it dissolves salts inside the cement. When this water reaches your internal walls and evaporates, it leaves the salt behind. This salt crystalizes, expands, and pushes the paint off the wall. This scientific process is called Efflorescence.
Wall putty and interior emulsion paints are decorative; they are not waterproof. They cannot withstand the hydrostatic pressure of water pushing from the inside of the wall.
To permanently stop dampness and papdi, you have to stop the water at its source.
The root cause is almost always the external wall. Professional contractors inspect the outside of your building. Any visible cracks are opened into a "V-groove" and filled with a flexible polymer crack-fill paste. Finally, the entire exterior wall is coated with a high-build, UV-resistant Elastomeric Waterproof Coating that stretches with the building and blocks rainwater.
If the external wall cannot be accessed (e.g., a shared society wall), the treatment must be done from the inside. The damaged plaster is scraped down to the brick level. A specialized Crystalline Waterproofing chemical is applied directly to the bricks. These chemicals react with moisture to form insoluble crystals, permanently blocking the water capillaries inside the wall.
Once the waterproofing layer is cured, the wall is re-plastered using polymer-modified mortar, which is highly resistant to dampness. Only after this is fully dry should you apply putty and paint.
At Pankaj Enterprises, we don't just hide the papdi; we cure the structural seepage causing it. As a PWD Class IV registered civil contractor, we use industrial-grade elastomeric coatings and crystalline treatments to protect Mumbai homes.
Don't waste money on another temporary paint job.
Book a FREE Wall Dampness Inspection Today