A stronger concrete surface
C² lithium silicate hardeners densify the concrete surface, helping reduce dusting and improve wear resistance. The treatment works within the concrete.
Why C²?
Crete Colors products for durable concrete floors: a stronger surface, a simpler application process and a planned result. Choose the right system and apply it according to the manufacturer’s instructions.
What you gain with C²
Less application work
C² Hard is sprayed and spread and normally needs no treatment rinse. Fewer application steps mean less crew time spent on rinsing and collecting wastewater.
Less equipment time
Where treatment rinsing is unnecessary, there is no need to run equipment for that step. The saving depends on the alternative process and the condition of the floor.
A system for the whole floor
Preparation, hardening, colouring, protection and maintenance: select Crete Colors products for each task, from the intended finish to everyday care.
A good result starts with the right application
Product quality and workmanship work together. Define the finish, confirm it on a test area and follow the selected product’s instructions.
- 01
Assess the floor
Check concrete condition, absorbency and the demands of the space.
- 02
Confirm on a test area
Check appearance, suitability and actual product consumption.
- 03
Follow the instructions
Observe preparation, dilution, contact time and excess-removal requirements.
- 04
Protect and maintain
Add compatible stain protection where needed and use the recommended maintenance method.
1 000 m²
Compare the whole treatment cost
A low price per litre does not necessarily mean a low project cost. Compare the material quantity, crew time and equipment required for a 1,000 m² warehouse.
Example: a new 1,000 m² warehouse floor. mineral dry shake is incorporated into fresh concrete; liquid hardeners are applied later to clean, cured concrete. Budget for the additional surface treatment only. Required abrasion performance must be confirmed for each option.
C² Hard — simpler work, lower overall costs
C² Hard is sprayed and spread, normally without rinsing. Fewer application steps help save time and equipment costs. In this example, the combined cost of materials, labour and equipment is lower — even if the hardener itself costs more per litre.
Calculation assumptions
Editable assumptions per 1,000 m²: C² Hard and the other manufacturer’s lithium silicate hardener each 8 person-hours, mineral dry shake 16 person-hours for material distribution and additional incorporation, at €25/person-hour. Equipment allowance per project: €50 / €150 / €50. Common concrete placement, base power-trowelling and curing are excluded for all options, not charged again to mineral dry shake. Labour productivity and allowances are estimates, not measured results; adjust to the contractor quote.
Mineral dry shake: €15.60 / 25 kg incl. 21% VAT, the lowest confirmed public Baltic offer found on 19 October 2026; no lower verified loyalty offer found. C² Hard: supplied €15/l excl. VAT. the other manufacturer’s lithium silicate hardener: advertised €235.95 / 25 kg, provisionally assumed to include 21% VAT because inclusion is unconfirmed. mineral dry shake and the other manufacturer’s lithium silicate hardener prices are divided by 1.21. These are not guaranteed market minima or volume quotations; delivery, handling fees and negotiated discounts are excluded.
C² Hard: 10–15 m²/l on cured concrete, model 0.08 l/m². mineral dry shake: quartz aggregate, Portland cement and additives; 3–5 kg/m² total, model 4 kg/m². At 1,000 m²: 4,000 kg, 160 × 25 kg bags. the other manufacturer’s lithium silicate hardener: 0.20–0.40 kg/m², model 0.30 kg/m². Purchase quantities round up to whole packs. Formula: material purchase + person-hours × hourly cost + equipment allowance. Dry shake forms an additional wear layer; lithium treatment densifies the concrete surface. The systems may also be combined where specified.
Comparable purpose does not prove identical performance. These products are not a substitute for a correctly designed slab. Forklift loads, abrasion requirements and the actual substrate must be checked; there is no same-slab comparative wear test behind this estimate.
Not included: common slab construction, base finishing and curing, later cleaning/preparation for liquid application, repairs, polishing, stain protection, delivery, VAT and downtime. Obtain a complete project quote before choosing the floor specification.
Mineral dry shake and the other manufacturer’s lithium silicate hardener are individual anonymous examples, not averages for an entire technology. mineral dry shake is a mineral dry shake; the other manufacturer’s lithium silicate hardener is a lithium-silicate liquid. Original sources are retained in project documentation.
Choose the C² hardener for your floor
Compare products →
C² Hard →
Concrete hardener and densifier for floors, including dusting surfaces previously treated with sodium or potassium hardeners.
Application instructions →
C² Super Hard →
Lithium silicate hardener and densifier for highly porous or deteriorating concrete.
Application instructions →
C² Hard Blend →
Concentrated lithium silicate hardener for steel-trowelled or burnished concrete.
Application instructions →Confirm suitability and consumption on a test area before treating the full floor. A hardener strengthens the surface; it does not repair structural defects.
Coverage and quantity
These typical ranges come from the product technical data sheets. They are not guaranteed consumption: surface preparation, absorbency and application conditions affect the amount needed.
| Concrete hardeners | Typical coverage | Pack sizes | Documents |
|---|---|---|---|
| C² Hard | Freshly placed, steel-trowelled concrete: 12.5–20 m²/L product Steel-trowelled, ground or polished concrete: 10–15 m²/L product | 20 / 200 / 1000 L | Technical data sheet (PDF) |
| C² Super Hard | Freshly placed, steel-trowelled concrete: 20–25 m²/L product Steel-trowelled, ground or polished concrete: 12–20 m²/L product | 20 / 200 / 1000 L | Technical data sheet (PDF) |
| C² Hard Blend | One application: 10–20 m²/L prepared mixture | Application instructions → | Technical data sheet (PDF) |
C² Hard Blend: dilute 1 part concentrate with 1 part water by volume. Coverage is per litre of prepared mixture, not per litre of concentrate.
How much does concrete hardener cost?
Request a quote for the selected product and pack size. A price per litre alone does not show the cost per square metre: coverage and, for concentrates, dilution also matter. Surface preparation, labour and any separate stain protection add to the project cost.
Send the floor area, concrete condition, existing coatings, intended use and delivery location. STOTRAS will confirm the suitable product, quantity, price and delivery options.
Request a product and delivery quote →Questions about concrete floor hardeners
What does a lithium silicate hardener do?
It penetrates absorbent concrete and reacts within the pores, helping densify the surface, reduce dusting and improve wear resistance. Read how the treatment works and which preparation steps are needed.
Can I treat an existing concrete floor?
Yes, suitable existing concrete can be treated. Product selection depends on the condition and absorbency of the floor. Remove contaminants and incompatible coatings as required by the product instructions, then test a small area.
How much concrete hardener do I need?
Consumption depends on the product, surface porosity and application method. Use the quantity calculator as an estimate and check the product TDS. Confirm actual consumption on a test area.
How do I find out the price and delivery time?
Send STOTRAS the floor area, location and selected product, or describe the concrete condition. We will discuss product selection, quantities, pricing and current delivery options.
Does a hardener protect against oil and stains?
Hardening and stain protection are different tasks. If oil, food or other spills are expected, select a compatible protection product separately. A hardener alone should not be treated as a complete stain-protection system.