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Stop the leak from inside the concrete
nanoSHIELD+ is a 3-part nanotech waterproofing system. It soaks into your roof, makes the concrete denser, and leaves a surface that sheds rain. Mix with water, brush it on, done.
Covers 150–200 sq ft
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Seepage doesn't fix itself
Concrete looks solid, but it's full of tiny channels. Every monsoon, water travels a little deeper — and the damage shows up inside your home.
Fix it from the roof, not the ceiling.
Repainting inside only hides it. The water is coming in through the slab above.How three parts make one shield
Scroll through what happens inside your roof slab.
Untreated concrete
Rain sits on the surface and is pulled down into capillary pores. That's the water that ends up as damp patches on your ceiling.
Part A — penetrator
Diluted with water and brushed on, it soaks deep into the pores instead of sitting on top. Nothing to peel or chip later.
Part 2 — densifier
Reacts inside the concrete and closes the channels up, making the slab denser and harder for water to travel through.
Part 3 — hydrophobic shield
The final coat makes the surface water-repellent. Rain beads up and rolls to the drain, while trapped moisture can still escape as vapour.
Why it works better
Goes in, not on
Part A soaks deep into the pores of the slab, so there's no surface film to peel, blister or chip.
Makes concrete denser
Part 2 reacts inside the concrete and closes up the capillaries that water travels through.
Water rolls off
Part 3 leaves a hydrophobic finish. Rain beads up and runs to the drain instead of sitting on the roof.
Lets the slab breathe
Trapped moisture can still escape as vapour, so the coating doesn't bubble from underneath.
Built for Indian summers
Long-lasting, UV-resistant formulation that handles harsh sun, heavy rain and big temperature swings.
Do it yourself
Mix with water and apply with a brush or roller. No hot work, no special tools, no contractor needed.
The water drop test
The same drop of water on two patches of the same roof.
Same house. Same storm.
Drag the slider to see the difference a sealed roof makes.
Illustration.
Real roof. Real afternoon.
Filmed on a terrace in Jaipur — no contractor, no machinery.
Spreading the coat
If you can sweep a floor, you can waterproof your roof.
Each part comes in its own container with the dilution printed on it. The leaflet in the box walks you through every coat.
How much do you need?
Enter your roof area. We'll suggest the cheapest mix of packs.
Pack sizes
| Pack | Covers | Per kg | Price |
|---|---|---|---|
| 1 kg | 30–40 sq ft | ₹279 | ₹279 |
| 3 kg | 90–120 sq ft | ₹150 | ₹449 |
| 5 kg | 150–200 sq ft | ₹140 | ₹699 |
| 10 kg | 300–400 sq ft | ₹125 | ₹1,249 |
| 20 kg | 600–800 sq ft | ₹110 | ₹2,199 |
Coverage is per coat system on a typical slab; very porous or old roofs use more.
Where to use it
Any concrete or masonry surface that water gets into.
- Roof slabs & terracesThe big one — stop monsoon seepage at the source
- External wallsKeeps driving rain out of brick and plaster
- Balconies & sunshadesSmall areas that leak into the room below
- Basements & retaining wallsAgainst damp coming through from the soil
- Water tanks (outside)Treat the outer surface of concrete tanks
- Bathrooms & kitchensBefore tiling, so water never reaches the slab
Apply it in one afternoon
Pick a dry day. Have a bucket, a brush or broom, and a roller for the last coat.
- Clean the roofSweep off dust and loose material. Fill any visible cracks with Crack SealX first.
- Part #1, diluted 1:4–5 with waterApply liberally so it soaks deep into the concrete.
- Part #2, diluted 1:10 with waterBrush it onto the surface while it's still wet from step 2.Let it dry
- Repeat parts #1 and #2A second pass for deeper protection.Let it dry
- Part #3, mixed with 3 parts waterRoll on the final coat for the water-repellent finish.Light foot traffic after ~12 h · full cure 24–48 h
Specifications
- System
- 3 parts: penetrator, densifier, hydrophobic sealer
- Coverage
- About 30–40 sq ft per kg
- Packs
- 1 kg, 3 kg, 5 kg, 10 kg, 20 kg
- Finish
- Clear, natural look
- Breathable
- Yes — vapour can escape
- Cure
- 12 h foot traffic · 24–48 h full
- Shelf life
- 12 months from manufacture
- Made by
- Rajasthan Chemicals & Glass Works, Jaipur
From people who used it
such an easy to use product, and it saved my house in rains, my roof used to leak crazy but with nanoshield it is fixed.
Questions
Something else? Ask us on WhatsApp.
How much do I need for my roof?
Each kilo covers roughly 30–40 sq ft. A typical 1,000 sq ft terrace needs about 30 kg — for example one 20 kg and one 10 kg pack. Use the calculator on this page for your exact area.
Can I apply it during the monsoon?
Apply it on a clean, dry surface on a dry day. Each coat needs to soak in and dry before the next one, so plan the job when no rain is expected for a day or two.
How long before it can take rain or foot traffic?
Light foot traffic after about 12 hours. Full cure takes 24–48 hours.
Will it change how my roof looks?
No. It works inside the concrete and leaves a clean, natural finish — there's no coloured coat or shiny film.
My roof already has cracks. Will this fix them?
nanoSHIELD+ protects the surface; it isn't a crack filler. Fill visible cracks with Crack SealX first, let it cure for 24 hours, then apply nanoSHIELD+ over the whole area.
Do I need a contractor?
No. You mix each part with water and apply it with a brush, wiper or roller. The step-by-step leaflet in the box walks you through it.
Where else can I use it?
Roof slabs, terraces, balconies, external walls, basement floors and retaining walls, the outer surface of water tanks, and bathrooms or kitchens before tiling.
Is it safe to handle?
Wear gloves, keep it away from eyes and out of reach of children. Use within 12 months of the manufacturing date.
Cracks in the roof?
Seal them with Crack SealX first, then apply nanoSHIELD+ over the top. From ₹479.
Seal it before the next monsoon
From ₹279 · delivered by Amazon or Flipkart.
