Substrate before flooring
Tile, vinyl, LVT, wood and epoxy toppings laid on a flat, dry plane.
Cement-Based Self-Leveling Compound
SKU: FW-SLF-CEM
A fast-setting cementitious levelling compound that creates a smooth, flat substrate for floor coverings or as a wear surface.
Key Parameters
- Finish
- Matte
- Thickness
- 10 mm
- Coverage
- 1.7 kg/m²/mm
- Mix Ratio
- Water 22–24%
- Walk-on Time
- 4 h
Standard pack: 25 kg/bag. Reply within 24 hours.
- ISO 9001
- CE
- PICC
System line:Self-Leveling Epoxy > Cement-Based Self-Leveling
Why buyers specify it
- Self-levelling with low shrinkage — no trowel marks
- Walk-on in about 4 hours; fast construction programme
- Pumpable and suitable for large areas
- Base-agnostic: sound concrete, cement, terrazzo and old tiles
- Dust-free substrate that protects the resin bond above it
Fast-setting cementitious levelling compound: a flat, dry, dust-free substrate for tiles, vinyl, wood or an epoxy topping.
Product overview
A fast-setting cementitious levelling compound: it pumps and flows into a flat plane over uneven concrete, at 1.7 kg/m² per mm of build-up, walk-on in about 4 hours and fully set at 24 hours. Low shrinkage means it stays flat while it cures instead of curling at the edges. Use it to bring a bad slab back to level before a wearing floor goes on — or leave it exposed where only traffic and dust matter.
What it is genuinely good at
Height differences. A resin build is thin by design — millimetres of resin are not how you buy height — so a cementitious underlayment is how you take up 10 mm of fall, bury an old tile joint, or float a floor over a slab that was never flat. It is the economical way to buy a plane like that, it is pumpable, which matters on a large slab on a tight programme, and it locks down dust.
How to order it: water and one-pass depth
Two numbers decide the order. The first is water: 22–24 % by weight for a 25 kg bag, weighed rather than judged by eye. Extra water makes the pour easier and takes strength out of the finished layer, and it lengthens the drying you will later have to wait through before any resin goes on top — the same clock the moisture reading below is taken against.
The second is depth per pass. This is a 10 mm product, and the honest split is that deeper areas want a bulky-aggregate grade or a second pass rather than one flood of standard mix. Consumption runs at 1.7 kg/m² per mm, so the area and the target thickness together are the order quantity — send both and we size it, including the primer that has to go under it.
When a resin floor is the better answer
Cement is porous, so this is the wrong product in four situations. Where the floor sees chemicals — acids, oils, detergents, cleaning regimes — the spill soaks in rather than sitting on top. Where a floor is mopped daily and has to stay sealed, a matte cementitious surface will not give the wipe-clean finish a seamless resin gives. Where the floor needs colour or an effect, this is grey and stays grey. And below grade, where moisture moves up through the slab, the build-up has to be specified from a moisture reading outward rather than from a product choice — that job belongs to the basement system. If the room is a store room or a plant room, exposing it is a legitimate finish. If the floor has to resist anything besides footfall, put a wearing floor on top.
Before an epoxy goes on top
A cementitious underlayment carries a great deal of water, so the question is never how many days it has been down but what the meter says. Gate the resin on a moisture reading taken through the build-up rather than on a calendar. Then grind and prime it: a skim that dries hard is still smooth and closed, and resin needs an open surface to key into.
Typical applications
Substrate levelling before tiles, vinyl, wood or epoxy toppings; renovation over old tiles; residential and commercial slabs; exposed floors in store rooms and plant rooms.
This is a substrate product, not a finish. It flows to a flat plane in 1–10 mm passes, is walkable in about four hours and takes flooring on far sooner than a traditional screed — which is where the labour and programme saving comes from.
For epoxy projects it plays two roles: pre-leveling a badly uneven slab before a self-levelling topping, or a wear surface in industrial areas where a resin finish is not needed.
System build-up (typical, per m²)
| Primer | 0.1–0.2 L/m²Two coats: diluted then full strength |
|---|---|
| Levelling layer | 1.7 kg/m² per mmWater 22–24 % per 25 kg bag |
| Typical pass | 3–10 mmBulky aggregate for depths over 10 mm |
| Overlay allowance | Ready for epoxy after dryingMoisture ≤ 4 % CM before resin |
Rated features
- self-leveling
- fast-setting
- low-shrinkage
- pumpable
- cost-saving
- dust-free
Colour options
- Natural Grey
Full specifications
| Brand | Friway |
|---|---|
| SKU | FW-SLF-CEM |
| Category | Self-Leveling Epoxy > Cement-Based Self-Leveling |
| Finish | Matte |
| Specification | 1–10mm cementitious self-leveling compound |
| Coverage | 1.7 kg/m²/mm |
| Thickness | 10 mm |
| Mix Ratio | Water 22–24% |
| Pot Life | 40 min |
| Walk-on Time | 4 h |
| Light Service | 24 h |
| Hardness | >60 (28d) Shore D |
| Adhesion | 1.5 MPa |
| Compressive Strength | 40 MPa |
| Tensile Strength | 8 MPa |
| Abrasion Resistance | ≤0.05 g (Taber CS-17) |
| VOC | 2 g/L |
| Package | 25 kg/bag |
| Warranty | 5 years |
Installation & cure data
| Mix water | 5.5–6.0 L per 25 kg22–24 % by weight — do not over-water |
|---|---|
| Working time | 40 min at 20 °C |
| Walk on | 3–4 h |
| Light flooring above | Vinyl/tile after 24–48 hDepending on thickness |
| Epoxy topping above | After drying to ≤ 4 % CMOften 3–7 days on site |
| Working conditions | 5–30 °C, no draughtsAvoid direct sun on fresh pours |
Performance
| Compressive | ≥ 40 MPa28 days |
|---|---|
| Flexural | ≥ 8 MPa28 days |
| Hardness | > 60 (28 d) |
| Adhesion to primed slab | ≥ 1.5 MPa |
| Flatness achieved | ±2 mm / 2 m |
| Fire behaviour | A2fl-s1Non-combustible cementitious |
Figures are typical values measured in our laboratory. Substrate, climate and workmanship affect the result — we confirm the final specification in writing before your order.
Documents for this system
We release documents as editable originals on request (batch-specific data is not in a generic PDF). One click sends your request with this product attached.
- Technical Data SheetWater ratio, thickness range and drying ratesRequest
- Class & conformity guidanceWhat we can issue for a cementitious screed in your market, and what has to be tested on site — ask before you specify a classRequest
- Substrate preparation guidePriming and moisture testing checklistRequest
- Batch Certificate of AnalysisPer production lotRequest
Certifications for this system
- ISO 9001
- CE
More resources
Packaging
Two-component sets palletised for export, shipped fromDongguan, Guangdong, China by Dongguan Friway Hydraulic Control Technology Co., Ltd..
| Set composition | 25 kg/bag |
|---|---|
| Net weight / set | 25 kg |
| Pallet configuration | 40 bags (1,000 kg net) per 1200 × 1000 mm pallet, shrink-wrapped, liquid pails interleaved |
| 20 ft container | ≈ 800 sets |
| 40 ft HQ | ≈ 1000 sets |
| Shelf life | 6 months from fill date |
| Storage | Dry store off the ground, keep bags sealed; used cements within 3 months of production date. |
Lead time
Counted from confirmed deposit and approved colour. FOBShenzhen or Guangzhou; CIF and DDP quoted on request.
| Order quantity | Lead time | Notes |
|---|---|---|
| Sample (≤ 2 sets) | 2–4 days | courier freight collect via DHL / UPS / FedEx, shipping at your cost; 5–7 days door to door |
| 1–49 sets | 5–7 days | Stock colours first; standard export packing included |
| 50–199 sets | 10–12 days | Includes batch mixing and in-house QC record per batch |
| 200–999 sets | 15–20 days | Production slot reserved after 30% deposit |
| FCL / 1000+ sets | 22–28 days | Confirmed against the shipping schedule; FOB Shenzhen or Guangzhou |
Customisation
- Colour matchingMOQ 5 sets (≈ 125 kg)
RAL / Pantone reference or a physical sample; we send a wet film for approval before batch production.
- Own-brand labellingMOQ 20 sets (≈ 500 kg)
Your logo and language on the pails and carton; artwork in AI/PDF. Blank labelling available below this MOQ.
- Packaging & cartonMOQ 50 sets (≈ 1,250 kg)
Pail size, carton printing, palletising and shipping marks per your export requirement.
- Full OEM / ODMMOQ 200 sets (≈ 5,000 kg)
Formulation adjustment (gloss, cure speed, aggregate, conductivity range) with TDS and CoA issued under your brand.
Certifications & paperwork
Company-level documents we can issue for this system. We supply certificate copies and batch test reports on request rather than publishing them as images.
- ISO 9001Quality management system for the flooring coatings lineCertificate copy + audit scope on request
- SGS testedAdhesion, hardness, abrasion and VOC on finished filmTest report per batch on request
- CE / DoCDeclaration of conformity for European projectsDoC issued with shipment documents
- French A+ VOCIndoor air-emission class for living-space floorsClassification sheet on request
- PICC product liabilityProduct liability cover for exported goodsPolicy summary on request
- MSDS / SDSPer component — needed for sea and air freight approvalIssued with every shipment
Application sequence
Check the baseDay 1
Sound, clean, and free of laitance; crack and joint positions recorded.
Prime twice if porous1–3 h dry
Diluted first coat, full-strength second; a dusty base is the usual cause of delamination.
Dose the water exactlyPer batch
Weigh the water. Over-watering lowers strength and raises drying time.
Pour and squeegeeContinuous
Start from the far corner, gauge the thickness, then spike-roll.
Protect from draughtsFirst 24 h
Close windows and stop radiant heating; fast drying causes cracks and curl.
Test before coveringBefore next trade
Confirm moisture ≤ 4 % CM before any resin or impermeable flooring.
Field tips
- Never pour over a slab that still has rising damp — the resin above will blister.
- Isolate movement joints in the levelling layer even when the base has none bridged over.
- In heated rooms, run the underfloor heating down before the pour and ramp it back after 24 hours.
- Do not treat the 4-hour walk-on time as 'ready for epoxy'; drying, not hardness, is the constraint.
Need the full method statement for your site? Request it with the form below — we review your slab data before your crew starts.
Where this system works
Renovation over old tiles
Skip demolition: prime, level 3–5 mm and lay the new finish.
Residential and commercial slabs
Fast, pumpable levelling across large areas in one day.
Wear surface under epoxy coloured sand
Provides a dry, stable base for the broadcast systems above.
Declared applications
- residential
- commercial
- renovation
Compatible substrates
- concrete
- cement
- tile
- terrazzo
After handover
- As a substrate it is covered; if left exposed, seal it to stop dusting.
- Keep freshly laid material out of traffic for 24 hours.
- Do not use solvent cleaners before resin work — they contaminate the bond line.
Frequently asked questions
How thick can I pour in one pass?
1–10 mm in a standard mix; deeper areas take a bulky-aggregate grade or a two-stage pour.
When can epoxy go on top?
Only once the layer has dried to ≤ 4 % CM — often 3–7 days depending on thickness, ventilation and slab moisture. We supply a CM test reminder with the kit.
Can it be used outdoors?
Not as a finished surface. It is an internal levelling product; external floors need a weather-resistant system.
Why does my poured layer crack?
Almost always drying too fast (draughts, sun, live heating) or an unprimed dusty base. Both are preventable at step 2 and step 5.
Your project has conditions we cannot see from here? Send the slab report and drawings — our engineers answer with a written specification.
Related Products
Made in Our Own Factory
Dongguan Friway Hydraulic Control Technology Co., Ltd.
Every batch of Cement-Based Self-Leveling Compound is produced in our own facility by a team that integrates R&D, production, sales and technical service. Advanced equipment, batch-level lab testing and a complete quality system mean consistent quality — from the first sample to the last pallet.
Mixing Lines
Reactor Kettles
Dispersing Equipment
Mixing & Control
Raw-Material Store
Labelling
Vacuum Mixing
QC Drying Oven
Filling & Capping
Questions about production, certificates or MOQ?
Ask Our Team- ISO 9001Quality management system for the flooring coatings lineCertificate copy + audit scope on request
- SGS testedAdhesion, hardness, abrasion and VOC on finished filmTest report per batch on request
- CE / DoCDeclaration of conformity for European projectsDoC issued with shipment documents
- French A+ VOCIndoor air-emission class for living-space floorsClassification sheet on request
- PICC product liabilityProduct liability cover for exported goodsPolicy summary on request
- MSDS / SDSPer component — needed for sea and air freight approvalIssued with every shipment
Certificates & Lab Reports
This product line is verified by third-party laboratories. The marks shown above are the ones we publish as images; the documents behind them — certificate copies, batch-specific test reports, the CE Declaration of Conformity — are issued on request. A scanned badge proves nothing about your slab; the report behind it does.
Get a Free Quote
Need a Specification for Your Slab?
Send the floor area, substrate condition and what the room has to take. We reply with the system build-up, coverage estimate and an FOB quotation — usually within 24 hours.
- Tell us about the floorArea in m², substrate condition, and the finish or colour you want.
- Get a technician's replyWithin 24 hours: system build-up, coverage estimate, pricing and TDS/MSDS.
- Confirm colour & sampleFree colour chips and a cured sample panel before you place an order.