Hardening
C² Cure
Combined curing agent and lithium hardener for newly placed concrete.
Why choose C²? →Depends on surface porosity and finish. Confirm consumption on a test area.
Stock availability
Contact us for availability
When to choose this product
For newly placed, smooth, steel-trowelled concrete. Combines a temporary curing film with a lithium silicate hardener to support hydration and improve surface abrasion resistance.
Concrete already cured? Compare C² hardeners →Product advantages
- All-in-one curing agent and lithium hardener.
- Improves abrasion-resistance, reduces surface dusting.
- Reduces staining and color variations common to other curing methods.
More advantages
- Reduces project timeline.
- Easy to apply and fast drying. Slows water loss from fresh concrete; the TDS states compliance with ASTM C309 moisture-retention requirements.
- Supports the performance and surface hardness of floors subsequently treated with C² Hard, C² Super Hard or C² Hard Blend. After the temporary film is removed, further Crete Colors protection can be applied.
- Low odor and non-flammable according to the TDS. Follow the SDS for handling and personal protection.
For smooth, steel-trowelled concrete. This is a temporary curing treatment, not the final protective finish.
Technical information
Typical technical data
| Appearance | White, opaque liquid |
|---|---|
| Specific gravity | 1.07 |
| pH | 11.4 |
| Active content | 13% |
| Total solids | 13% |
| Shelf life in a tightly sealed, unopened container | 1 year |
| Flash point | >100 °C (ASTM D3278) |
Typical values from the manufacturer’s TDS; application details are in the full instructions.
Preparation and working conditions
Surface and air temperature4–38 °C
Use on freshly placed, smooth steel-trowelled concrete at 4–38°C. Remove standing water. Apply after finishing, preferably before cutting control joints; if already cut, remove all cutting dust.
Equipment
Use a low-pressure sprayer. Distribute evenly without puddles; avoid forming a fine mist.
Practical advice
Test a representative area with the equipment and preparation planned for the job. Let it dry before assessing the result and coverage.
Protect from water and foot traffic for 4–12 hours and limit traffic for 7 days. Keep the slab clean during construction; remove spills promptly and use breathable temporary covers when needed.
After 28 days, remove the temporary film with an auto-scrubber and black stripping pad using C² Degrease diluted 1:4 with water, or C² Maintenance at its recommended dilution. Then proceed with final hardening/protection.
Clean tools with fresh water before the product dries. Immediately wash splashes off glass, aluminium and other adjacent surfaces.
Storage and handling
Storage temperature15–32 °C
Store upright in sealed original containers in a cool, dry place. Close after dispensing. Follow local rules for unused product and packaging.
Product at work
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