1.76Tensile adhesion, N/mm²
1.97Shear adhesion, N/mm²
30 minOpen time
40 minAdjustment time
≈ 5.0 LWater per bag
About ST4 Platinum
Premium installs, heavy tiles and demanding sites
The strongest bond in the Tilexo range. ST4 Platinum is our premium, highly deformable (S2) formulation, engineered for maximum holding strength on installs that can't afford a callback.
Ideal applications
- Premium installs and heavy tiles
- Demanding sites with no room for a callback
- Highest deformability in the range (S2 class)
- Premium residential and commercial interiors
Key features
- Non-slip grip. Holds tiles in place on application, so they don't creep or slide before the bond sets.
- Crack resistant. Formulated to keep tiles from cracking as the surface settles over time.
- No hollow sound. A solid, even bed underneath. No hollow patches, no weak spots.
- Floor & wall. One adhesive family for internal floor and wall tiling.
Technical data
Test results
Independent lab report to IS 15477:2019, dated 18 Aug 2026.
| Property | Result | IS 15477 requirement | Method |
|---|---|---|---|
| Classification | Type 4 adhesive | Type 1–5 | Clause 4 |
| Tensile adhesion, dry | 1.76 N/mm² | ≥ 1.5 N/mm² | Annex A |
| Tensile adhesion, wet | 1.41 N/mm² | ≥ 1.0 N/mm² | Annex A |
| Shear adhesion, dry | 1.97 N/mm² | ≥ 1.5 N/mm² | Annex B |
| Shear adhesion, heat-aged | 1.72 N/mm² | ≥ 1.0 N/mm² | Annex B |
| Shear adhesion, wet | 1.44 N/mm² | ≥ 1.0 N/mm² | Annex B |
| Open time | 30 min | ≥ 15 min (declared) | Annex C |
| Adjustment time | 40 min | ≥ 20 min (declared) | Annex D |
| Slip (vertical) | 0.20 mm · T | ≤ 0.5 mm | Annex E |
| Deformability | 5.97 mm · S2 | ≥ 5.0 mm | Annex F |
| Water ratio | 250 ml/kg | ≈ 5.0 L per 20 kg bag | — |
| Pack size | 20 kg | — | — |
| Shelf life | 12 months | Unopened bag, stored dry | — |
How to use
Six steps, printed on every bag
1
Clean the surface
The base must be firm, level and free of dust, oil, paint and loose material. Dampen very dry, absorbent surfaces and wipe away standing water.
2
Measure the water
For ST4 Platinum: 250 ml per kg, about 5.0 litres per 20 kg bag.
3
Pour the adhesive
Add the powder to the water, not the other way round, while mixing.
4
Wait
Let the mix stand for about 5 minutes so the additives activate.
5
Stir
Re-mix to a smooth, lump-free paste, ideally with a drill and paddle at low speed. Do not add more water later.
6
Apply
Spread with a notched trowel, comb in straight lines, place the tile and press with a slight twist. Adjust within the adjustment time and grout after 24 hours.
Other grades
Compare the range
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