STP ShaliCryl TC 100 E
STP’s UV-stable acrylic top coat that keeps ShaliCryl 215 waterproofing glossy, dirt-repellent and crack-free through Delhi NCR’s punishing summer sun.
What is it?
A single-component, UV-resistant acrylic emulsion top coat with silicone additives, supplied in a white base and pigmented to shade, applied over cured ShaliCryl 215 elastomeric waterproofing.
Where is it used?
Exposed RCC terraces, roof slabs, parapets, sunshades, podium decks and overhead tank exteriors already waterproofed with ShaliCryl 215 — anywhere the membrane takes direct sun, dust and monsoon rain.
Why use it?
Left uncoated, an acrylic waterproofing membrane chalks and loses gloss under UV within a couple of seasons. TC 100 E seals it in a tough, washable, algae-resistant skin, bridges hairline cracks up to 2 mm, and extends the base coat’s working life.
How is it applied?
Brush or roller in two coats at 180-200 ml/m² each over a clean, cured ShaliCryl 215 surface, 6-8 hours apart; keep off foot traffic for 72 hours after the final coat.
About STP ShaliCryl TC 100 E
STP Limited — formerly Shalimar Tar Products, now part of the Berger Paints group, with over 85 years in Indian construction chemicals — built the ShaliCryl range on a two-layer logic: one product handles waterproofing and elongation, a second purpose-built coat handles UV, dirt and gloss. ShaliCryl TC 100 E is that second product. It is not a waterproofing membrane in its own right; it is the finishing layer specified over ShaliCryl 215’s elastomeric acrylic base coat, and its formulation — quick-set silicone additives, high solids, a tight DFT band — is tuned around protecting that base coat rather than replacing it.
That distinction matters more in Delhi NCR than in most places. Exposed terraces here see summer surface temperatures well past 60°C, months of UV loading, and construction dust that settles into any coating with poor surface tension. Sites that skip the top coat and leave ShaliCryl 215 exposed typically see it chalk and stain within a season or two, forcing an early recoat. TC 100 E’s water repellency and dust pick-up resistance target exactly that failure mode — it is cheap insurance on the base coat, not a cosmetic add-on, which is how experienced applicators in the region actually treat it.
The technical insight
The datasheet numbers explain the on-site behaviour. At 58 ± 2% solids and 3000 ± 200 cps viscosity, it lays a controlled 80-100 micron dry film per coat. Its 620 ± 50% elongation and 1.20 ± 0.1 MPa tensile strength (ASTM D 6083, 14-day cure) sit close to what’s needed to track the 2 mm crack-bridging claim without splitting at hairline movement in the base coat. A 70-72 Shore A hardness with 1.6 MPa adhesion strength (ASTM D 4541, concrete failure mode) means the film itself is rarely the weak link — if a coated terrace fails, it’s usually surface prep. Specific gravity 1.20 and theoretical coverage of 4.90-6.20 m²/L give estimators a real basis for material take-offs rather than rule-of-thumb coverage.
Where it is used
- Top-coat finish over ShaliCryl 215 on exposed RCC terraces and roof slabs
- Parapet walls, chajjas and sunshades under direct monsoon and summer UV exposure
- Podium decks and terrace gardens needing a washable, dust-resistant surface
- Overhead water tank exteriors and elevated water storage structures
- Industrial shed and factory roofs already waterproofed with ShaliCryl 215
- Refurbishment recoats on aged, chalked elastomeric waterproofing
- Shaded, algae-prone terraces and monsoon-exposed walls needing fungal resistance
- Institutional and hospitality building exteriors where a stain-free finish matters for upkeep
Key advantages
- Excellent UV resistance — passed 1000-hour accelerated weathering (ASTM D G23 Type D) with no defects or cracking
- Water and dirt repellent lotus-leaf surface, easier to sweep and wash clean
- High crack-bridging property up to 2 mm, tracking minor base-coat movement
- Fast surface-dry of about 10 minutes limits dust contamination during application
- Extends the working life of the ShaliCryl 215 base coat by shielding it from direct UV
- Documented ASTM-tested performance (D 6083, D 2240, D 4541, D 4586) gives verifiable data, not marketing claims
- Low-VOC, water-based acrylic formulation, easier to work with than solvent-based top coats
Limitations & considerations
- Not a standalone waterproofing product — it only performs as specified over cured ShaliCryl 215, not on bare concrete
- Sold only in 5 L and 20 L packs, so very small balcony or terrace jobs may end up buying more material than needed
- Weather-dependent application window: above 5°C, a dry 6-8 hour gap between coats, and 72 dry hours before traffic — tight to plan around Delhi NCR’s monsoon
- Pigmented to shade with STP’s accompanying paste, so colour consistency across large facades depends on using paste from a single batch
- A two-coat, two-product system (215 + TC 100 E) takes longer on site than single-coat elastomeric alternatives
Selection & best practice
Confirm the ShaliCryl 215 base coat has fully cured and is dust-free before starting — a quick air-jet clean is usually enough. Apply the first coat undiluted at 180-200 ml/m², let it dry 6-8 hours, then apply the second coat at the same rate; don’t compress this gap under site pressure, since it’s what gives the film its full crack-bridging strength. Keep the coated area completely out of traffic for 72 hours after the final coat, and don’t start either coat if rain is forecast within that window — a common site mistake in Delhi NCR’s monsoon shoulder months.
Specifications
| Chemistry / System | Single-component, UV-resistant acrylic emulsion with silicone additives and quick-set capability |
| Specific Gravity | 1.20 |
| Solid Content | 58 ± 2% |
| Viscosity @ 30°C | 3000 ± 200 cps |
| Dry Film Thickness (per coat) | 80–100 microns |
| Theoretical Coverage | 4.90–6.20 m²/L per coat (surface-dependent) |
| Elongation (14-day, ASTM D 6083) | 620 ± 50% |
| Tensile Strength (14-day, ASTM D 6083) | 1.20 ± 0.1 MPa |
| Pack Sizes | 5 L and 20 L (bulk on request) |
Industry use cases
Residential
New-build terrace handover package in a Gurugram apartment complex, with TC 100 E applied over ShaliCryl 215 to protect the membrane before possession.
Commercial / Retail
Mall podium deck recoat where heavy footfall dust made a washable, dirt-repellent top coat a maintenance priority.
Industrial
Factory shed roof waterproofing package in an NCR industrial park, topcoated to extend recoat cycles under constant dust and UV exposure.
Institutional
Overhead water tank exterior on a school campus, finished with TC 100 E for a stain-resistant, easy-to-inspect surface.
Renovation
Refurbishment of a 6-year-old terrace where the original elastomeric coating had chalked and dulled, recoated to restore gloss and UV protection without redoing the base membrane.
Frequently asked questions
Can ShaliCryl TC 100 E be used without ShaliCryl 215, as a standalone waterproofing coat?
How many coats does it need and what’s the coverage rate?
How soon can the terrace be used after the final coat?
What colours does it come in?
What’s the shelf life and how should we store it on site?
Does the surface need a primer before TC 100 E goes on?
How we position STP ShaliCryl TC 100 E
Within STP’s own range, TC 100 E is the standard partner for ShaliCryl 215 elastomeric waterproofing; where a site wants extra water-repellency on top of UV protection, STP’s own ShaliCryl TC 100 ES (silicone-modified) is the step-up variant, and ShaliCryl LM / LM HI cover fibre-reinforced base membranes with heat-insulation needs. For specifiers weighing an alternative system rather than a top-coat add-on, Fosroc’s Nitocote Wallguard is the closest genuine equivalent — it folds waterproofing and a UV-stable decorative finish into one product, trading STP’s dedicated two-layer crack-bridging build for one-coat simplicity.
Fosroc Nitocote Wallguard — Specifiers who want a single-product elastomeric waterproof-plus-decorative system rather than STP’s two-layer ShaliCryl 215 + TC 100 E build-up sometimes choose Nitocote Wallguard instead, trading some of STP’s dedicated crack-bridging film build for one-coat site simplicity.
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