Asian Paints SmartCare SmartCare Damp Sheath Exterior
An elastomeric acrylic waterproofing coating from Asian Paints SmartCare, built for exposed terraces, parapets and exterior walls through Delhi NCR’s monsoon and heat cycles.
What is it?
A brush, roller or spray-applied elastomeric acrylic coating that waterproofs exposed horizontal concrete — terraces, parapets, chajjas — and also works as a flexible basecoat under exterior emulsion on vertical walls.
Where is it used?
RCC terraces and roof slabs, parapet walls, chajjas and sunshades, and exterior masonry ahead of a decorative topcoat, on new construction and re-waterproofing retrofits alike.
Why use it?
Rated to resist up to 5 bar positive hydrostatic pressure horizontally and 3 bar vertically, with an elastomeric film that bridges hairline cracks up to 0.5mm instead of cracking with the substrate.
How is it applied?
Substrate cleaned and cracks repaired, primed where porous, then coated to the recommended film build, cured, and flood-tested before handover or topcoating.
About Asian Paints SmartCare SmartCare Damp Sheath Exterior
SmartCare Damp Sheath Exterior is Asian Paints’ elastomeric acrylic waterproofing coating for exposed concrete that takes direct rain and sun. Unlike a bituminous membrane or a rigid cementitious slurry, it cures into a flexible film, so it suits terraces, parapets, chajjas and sunshades where the substrate moves a little with heat and won’t tolerate a coating that cracks the moment it does. On vertical walls it doubles as a waterproofing basecoat applied before an exterior emulsion topcoat, rather than a standalone finish.
For Delhi NCR homes, the real test is the July-to-September monsoon, and most terrace leaks trace back not to a bad product but to skipped surface prep, thin film build, or coating over cracks that needed structural repair first. Space Arc, as an authorised SmartCare distributor and applicator, positions Damp Sheath Exterior for exactly that gap between buying a can of waterproofing coating and getting a waterproofed terrace: crack treatment first, the right coat count to reach film thickness, and a flood test before sign-off, backed by Asian Paints’ 5-year warranty when applied as specified.
The technical insight
The two hydrostatic-pressure ratings Asian Paints publishes — up to 3 bar vertical, up to 5 bar horizontal — describe how much positive water pressure the cured film holds back, standing in for rainwater on a flat terrace versus wind-driven rain on a wall. The 0.5mm crack-bridging figure and 150% elongation, both measured on horizontal surfaces, are worth reading literally: the film stretches and recovers across hairline shrinkage cracks, but it is not a structural repair product. Cracks wider than roughly 0.5mm, or any crack still moving structurally, need routing and filling with a polymer-modified mortar first — coating over a live crack just relocates the leak.
Where it is used
- Waterproofing exposed RCC terraces and roof slabs, including over existing brick bat coba
- Parapet wall waterproofing where the wall cap takes direct rain
- Chajja and sunshade surfaces prone to ponding at the drip edge
- Basecoat under exterior emulsion on vertical masonry and plastered walls
- Re-waterproofing over sound, existing acrylic coatings during a repaint cycle
- Pre-monsoon retrofit on terraces showing early seepage or efflorescence
Key advantages
- Resists up to 5 bar positive hydrostatic pressure horizontally and 3 bar vertically
- 150% elongation and 0.5mm crack bridging tolerate thermal movement a rigid coating would crack under
- Works as both a terrace waterproofing coat and a wall basecoat, covering two roles on one job
- Brush, roller or spray application suits small terraces and larger façades alike
- Backed by Asian Paints’ own 5-year warranty when applied through the specified system
- Sourced and applied through Space Arc as an authorised SmartCare distributor, with warranty registration handled correctly
Limitations & considerations
- Public product page doesn’t list dilution ratio, coat count or drying/recoat times — confirm against the current Product Information Sheet before quoting
- 0.5mm crack bridging is modest; it doesn’t replace structural repair on cracks still moving
- Performance depends heavily on film thickness — under-application is the most common cause of site failures in this product class
- Manages water ingress, not accumulation — poor slope or blocked drains will still pond regardless of the coating
- Not intended for below-grade or negative-side waterproofing such as basements or water tanks
Selection & best practice
Repair active cracks with a polymer-modified mortar before coating — don’t rely on the coating to bridge anything beyond hairline movement. Clean the substrate to remove laitance, algae and loose material, and prime porous or chalky surfaces. Apply in the coats needed to reach the recommended film thickness rather than stretching one thin coat, keeping consistent direction between coats. Avoid application if rain is forecast within the cure window or the surface is still damp. On terraces, flood-test with a temporary bund before handover; on walls, let the basecoat cure fully before the exterior emulsion topcoat.
Specifications
| Product type | Elastomeric acrylic waterproofing coating |
| Positive hydrostatic pressure resistance – vertical | Up to 3 bar |
| Positive hydrostatic pressure resistance – horizontal | Up to 5 bar |
| Crack bridging (horizontal surfaces) | Up to 0.5 mm |
| Elongation (horizontal surfaces) | 150% |
| Application method | Brush, roller or spray |
| Pack sizes | 1 L, 4 L, 10 L, 20 L |
| Manufacturer warranty | 5 years (system-applied, per Asian Paints terms) |
Industry use cases
Residential
Pre-monsoon terrace waterproofing on independent floors and builder-floor apartments across Delhi NCR
Residential retrofit
Re-coating an ageing brick bat coba terrace showing early seepage, without a full tear-off
Commercial
Basecoat under exterior emulsion on office and retail façade repaints that also need damp resistance
Institutional
Terrace and parapet waterproofing during school or hospital vacation-window AMC work
Frequently asked questions
Can it be used as a standalone terrace waterproofing coat, without brick bat coba underneath?
How many coats does it need, and what film thickness should I ask for?
Does bare RCC or old brick bat coba need a primer first?
Can I paint a decorative topcoat over it, or does it stay exposed?
How soon can the terrace take foot traffic or rain after application?
What’s the difference between this and Damp Sheath Exterior Advanced?
How we position Asian Paints SmartCare SmartCare Damp Sheath Exterior
Within the SmartCare waterproofing range, Damp Sheath Exterior is the standard terrace-and-basecoat elastomeric coating; Asian Paints also sells a Damp Sheath Exterior Advanced variant with its own warranty terms for longer cover, and SmartCare Damp Proof for interior damp-wall treatment rather than exterior terraces. Where a job needs heavier crack bridging or anti-carbonation performance on exposed RCC — bridges, taller-structure parapets, or facades with hairline cracking beyond 0.5mm — Fosroc Dekguard Elastic is the closer-matched alternative Space Arc also supplies.
Fosroc Dekguard Elastic — A specifier might choose Dekguard Elastic over Damp Sheath Exterior when the job needs heavier-duty crack bridging (up to 6mm) or documented anti-carbonation performance on exposed RCC, such as bridges, taller-structure parapets or facades with active hairline cracking beyond 0.5mm.
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Authorised distribution, technical advice & professional application across Delhi NCR and Pan-India.