UltraTech Floorkrete
A ready-mixed cement screed that turns an uneven slab into a true, load-ready floor in one confident pour.
What is it?
A polymer-modified, cement-based floor screed mortar that arrives pre-mixed with graded sand and fillers — you just add water on site and trowel it to level.
Where is it used?
Terrace decks over waterproofing, warehouse and workshop floors, and the levelling bed under tiles, marble or industrial coatings.
Why use it?
It gives a dense, IS 2250-compliant screed with predictable strength bag after bag, instead of leaving screed quality to whatever sand-cement ratio a mason eyeballs on site.
How is it applied?
Gauged with 15-17% water by weight, laid 20-50 mm thick per layer with a spatula or aluminium float, and water-cured for about two days before the next trade moves in.
About UltraTech Floorkrete
Every flooring job — tiles, epoxy, PU, marble, even a bare warehouse slab — depends on a layer nobody sees once the work is done: the screed underneath. Get that layer wrong and it shows up months later as hollow-sounding tiles, ponding water on a terrace, or a warehouse floor that dishes under racking. On most sites this screed is still a mason’s judgement call — a shovel of cement, a few of sand, water till it “feels right.” UltraTech Floorkrete removes that guesswork by pre-blending cement, graded sand and polymer modifiers at the factory, so every 40 kg bag mixes to the same workability and the same design strength, batch after batch.
Floorkrete comes in three strength grades — HS1 (M60) for the heaviest trafficked dock and warehouse floors, HS2 (M40) for general terrace and underlayment work, and HS3 (M20) for lighter-duty areas — so a contractor can match screed strength to the load the floor will actually carry instead of over-specifying everywhere. Each grade is tested and reported against IS 2250, which gives site engineers and consultants an actual number to check against a work order rather than trusting a mason’s memory of last year’s mix ratio. It is worth being equally clear about what Floorkrete is not: it is a structural levelling and bedding layer, not a waterproofing product in its own right. On terraces and wet areas it is meant to sit over a cured waterproofing membrane, carrying falls to the drain and giving tile, marble or coating layers a sound, well-bonded base to key into rather than trying to keep water out on its own.
The technical insight
The polymer redispersible powders blended into Floorkrete are what separate it from a plain sand-cement screed. They improve the mortar’s bond to the substrate below and to whatever is laid over it, add flexural toughness so hairline shrinkage cracks are less likely to telegraph through tiling, and let the mix hold together at a lower, more controlled water-cement ratio. That control matters: Floorkrete is designed around a tight 15-17% water demand by weight, and holding to that range is what delivers the quoted 28-day compressive strength of 35-40 N/mm² for the HS2 grade. Add more water for easier troweling and you dilute the polymer film and the cement matrix both, trading long-term strength for short-term convenience. For thicker pours, the same pre-graded sand system lets the mortar be extended with 10 mm down well-graded aggregate in a 1:1 ratio by weight — bulking out the mix economically while keeping shrinkage in check, at the cost of a lower but still serviceable 20-25 N/mm² strength.
Where it is used
- Terrace and roof deck screeding over a cured waterproofing membrane, laid to falls before tiling
- Warehouse, godown and workshop floor screeding ahead of an epoxy or PU floor coating
- Levelling underlayment beneath marble, granite and large-format vitrified tile flooring
- Substrate preparation and re-profiling for industrial protective coating systems
- Loading bay, ramp and dock-leveller area screeding where heavy point loads are expected
- Renovation screeding over old, worn or uneven concrete floors during a shutdown
- Garage and light industrial floor levelling ahead of a final wear surface
- Building up falls around floor drains, gullies and shower areas before waterproofing or tiling
Key advantages
- Factory pre-blended cement, sand and polymer gives consistent strength bag to bag, unlike a hand-gauged site mix
- Polymer modification improves bond to the substrate and reduces shrinkage cracking versus plain sand-cement screed
- Single-layer application from 20 mm up to 50 mm cuts down on multiple screeding passes
- Ready for the next trade in around 48 hours under normal conditions, keeping the programme moving
- Technical parameters comply with IS 2250, giving consultants and contractors a documented basis for acceptance
- Can be extended with 10 mm aggregate in a 1:1 ratio for thicker or more economical pours without a separate concrete mix
- Just-add-water format means less site wastage than stockpiling loose sand and cement
- Available across three strength grades so the screed can be matched to warehouse, terrace or light-duty loading
Limitations & considerations
- Not a waterproofing product — it must be laid over a properly cured waterproofing membrane wherever water exposure is expected
- Not self-levelling; it still needs a skilled trowel hand to strike true falls and a flat finish
- Pot life is about one hour, so batches have to be sized to what the crew can lay before the mortar starts to stiffen, especially in hot weather
- Over-watering beyond the specified 15-17% ratio weakens the cured screed even though it makes application easier
- Requires disciplined water curing — around two days, wetted three times a day — or the surface is prone to dusting and micro-cracking
- As a screed layer it is not the finished wear surface; tiling, coating or a hardener still needs to go over it in most applications
Selection & best practice
Start by getting the substrate right: remove oil, dust, laitance and any bond-inhibiting residue by wire-brushing, water-jetting or mopping, and roughen a smooth concrete surface — or prime it with a bonding agent such as UltraTech Seal & Dry 5 Plus — so the new screed keys into the old slab instead of sitting on top of it. Gauge each bag with 15-17% potable water by weight and mix for two to three minutes until it is lump-free; because pot life runs to about an hour, mix in batches the crew can place and finish within that window rather than pre-mixing a whole day’s material. Lay to the required thickness in a single pass between 20 mm and 50 mm, working to falls with a spatula or aluminium float, and plan panel sizes and groove cutting in line with the manufacturer’s guidance to control shrinkage cracking over larger areas. Once laid, water-cure for around two days, wetting the surface roughly three times a day — this single step does more for long-term strength and crack resistance than almost anything else in the process. Hold off on tiling, coating or further loading for about 48 hours under normal site conditions, and extend that window in cooler weather since strength gain slows below 20°C. Finally, pick the grade to the job: HS1 where dock and warehouse floors will see sustained heavy traffic, HS2 for the general run of terrace and underlayment work, and HS3 where loads are genuinely light.
Specifications
| Applicable standard | IS 2250 |
| Composition | Cement-based, polymer-modified, pre-mixed floor screed mortar with graded sand |
| Water demand | 15-17% potable water by weight |
| Pot life | 1 hour |
| Compressive strength @ 28 days (HS2) | 35-40 N/mm² neat; 20-25 N/mm² with 10 mm aggregate extension (1:1 by weight) |
| Fresh wet density | 2250-2350 kg/m³ |
| Application thickness | 20-50 mm per layer |
| Coverage | Approx. 18-20 sq.ft per 40 kg bag at 12 mm thickness |
| Packaging & shelf life | 40 kg bags; 12 months from manufacture in cool, dry storage |
Industry use cases
Warehousing & logistics
Screeding godown and FMCG warehouse floors ahead of an epoxy or PU coating, using the HS1 grade where racking and forklift traffic demand a heavier-duty base.
Residential & commercial terraces
Screeding to falls over a cured waterproofing membrane before tiling, so terrace and balcony water reaches the drain outlets instead of pooling.
Hospitality & retail flooring
Underlayment beneath marble, granite and large-format vitrified tiles, giving lobbies and showrooms a true, hollow-free bed for premium finishes.
Industrial plants & workshops
Re-screeding old, worn concrete floors during a shutdown window, where the roughly 48-hour overcoat readiness helps limit production downtime.
Institutional buildings
Terrace and utility-area screeding on schools, hospitals and campuses where IS 2250 compliance gives consultants a documented basis for sign-off.
Frequently asked questions
Is UltraTech Floorkrete waterproof on its own?
Which grade should I use — HS1, HS2 or HS3?
How thick can Floorkrete be laid in a single pass?
How soon can tiling or coating start after screeding?
Does the screed need curing like ordinary concrete?
What is the coverage per bag?
How we position UltraTech Floorkrete
Floorkrete rarely works alone on a site, so it is worth planning it alongside the rest of the UltraTech range Space Arc stocks. Underneath it, on any terrace or wet area, pair it with a UltraTech Seal & Dry or Weather Pro waterproofing system laid and cured first. Above it, once the screed has cured, UltraTech Tilefixo and Tilefixo Grout carry the tiling through, while UltraTech Basekrete, Microkrete and Mykrofill handle any concrete repair or rehabilitation work elsewhere on the same structure — and UltraTech Powergrout covers precision machine-base grouting if the project includes industrial equipment foundations. Space Arc also distributes Fosroc, and where a project calls for a faster, self-levelling floor topping rather than a trowel-applied screed, Fosroc Nitoflor Levelcrete is a genuine alternative worth discussing with our technical team before finalising the flooring specification.
Fosroc Fosroc Nitoflor Levelcrete — Not a like-for-like swap — Levelcrete is a single-pack, self-levelling cementitious topping that re-profiles a floor in 12-80 mm beds without troweling to falls, whereas Floorkrete is a trowel-applied screed with flexible 20-50 mm thickness and grade control. Choose Levelcrete where speed and a self-levelling finish matter more than skilled trowel labour; choose Floorkrete where falls, thickness and cost control matter more.
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