Tile & stone fixing
NSA W-20
Improved flexible tile adhesive
A polymer-modified universal adhesive for tile and stone, engineered for large formats, natural stone and elevation work.
Available in
At a glance
- Grade
- C2 TE S1 · Type 4 T S1
- Tile size
- Large formats
- Use
- Marble, granite, elevations
- Colour
- Grey and white
- Pot life
- 90–120 minutes
- C2 TE S1 Grade Deformable, with extended open time
- S1 Flexibility Copes with movement and heavy stone
- 2–3 sq.ft Coverage per kg At 3 mm with a 6×6 mm trowel
- 20 · 40 kg Bags Grey in 20 and 40 kg, white in 20 kg
Made for stone and elevations
Large-format tiles and natural stone put far more demand on an adhesive because of their size, weight and installation height. NSA W-20 adds S1 flexibility for framing, elevations and vertical work.
- 01 Clean the surface and make sure the base is sound.
- 02 Spread NSA W-20 with a 6×6 mm square-notch trowel, about 3 mm thick.
- 03 Press tiles or stone firmly into place and level them within the open time.
Built into every bag
Five things NSA W-20 does that cement mortar can’t.
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S1 flexibility
A deformable bond that handles movement.
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High polymer modified
Strong, dependable bonding for tile and stone.
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Extended open time
More time to place and level each piece (E class).
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Anti vertical slip
Heavy stone stays put on vertical surfaces.
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Waterproof performance
For areas that need waterproof performance.
Choose the
right grade
Five grades of NSA tile adhesive cover everything from small ceramic tiles to very large-format Italian stone. Compare them side by side.
NSA 20-20
|
NSA T-20
|
NSA T-20 Plus
|
NSA W-20
This product
|
NSA W-20 Plus
|
|
|---|---|---|---|---|---|
| Grade | C2 T | C2 TE | C2 TE | C2 TE S1 | C2 TE S2 |
| Type | Type 2 T | Type 3 T | Type 3 T | Type 4 T S1 | Type 4 T S2 |
| Tile size | Up to 2×2 ft | Up to 32×64 in | Up to 2.5×5 ft | Large formats | Very large formats |
| Best for | Small ceramic and porcelain | Tile-on-tile, medium tiles | Large vitrified, marble framing | Marble, granite, elevations | Italian stone, ceilings |
| Flexibility | — | — | — | S1 | S2 |
| View product : NSA 20-20 | View product : NSA T-20 | View product : NSA T-20 Plus | You are here | View product : NSA W-20 Plus |
Technical
snapshot
Test report as per IS 15477-2019. Download the technical data sheet for the full report.
- Classification
- C2 TE S1 · Type 4 T S1 (IS 15477-2019)
- Best for
- Large-format tiles; marble and granite fixing; framing; elevation and vertical applications; areas requiring waterproof performance
- Pot life
- 90–120 minutes
- Open time
- 20 ± 5 minutes
- Adjustment time
- 30 ± 5 minutes
- Tensile adhesion (28 days)
- 1.80–2.00 N/mm²
- Shear adhesion (28 days)
- 1.85–2.05 N/mm²
- Coverage
- Approx. 2–3 sq. ft./kg at 3 mm thickness using a 6 × 6 mm square-notch trowel
- Packing
- Grey: 20 kg and 40 kg bags · White: 20 kg bags
Questions about
NSA W-20
Can NSA W-20 fix natural stone on elevations?
Yes. It is engineered for large-format tiles, marble, granite, framing and elevation and vertical applications.
What does S1 mean?
S1 is a deformability class. An S1 adhesive can flex with small movements between tile and surface, which matters for heavy stone and exterior work.
How much area does one bag cover?
About 2–3 sq. ft. per kg at 3 mm with a 6×6 mm notch trowel, so roughly 40–60 sq. ft. per 20 kg bag, or 80–120 sq. ft. per 40 kg bag.
Free sample
Try NSA W-20 on
your own site.
Ask for a free sample. Test the bond and the application before you order.