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Penetrates deeply into concrete to react with free lime and form insoluble calcium silicate hydrate (C-S-H) gel.
Enhances surface hardness and abrasion resistance without altering the concrete’s natural appearance or breathability.
Non-toxic, low-VOC formulation compliant with international health and safety standards for indoor use.
Fast-acting — achieves measurable strength gain within 24 hours of application under standard curing conditions.
Water-based, solvent-free chemistry suitable for environmentally sensitive construction projects.
Industrial warehouse floors requiring high wear resistance and dust suppression.
Commercial retail spaces and showrooms where aesthetic finish and long-term durability are critical.
Concrete parking structures and ramps exposed to heavy vehicular traffic.
Newly cast interior concrete slabs in residential and office buildings.
Pre-cast concrete elements requiring accelerated surface stabilization prior to handling or finishing.
| Chemical Type | Lithium silicate-based reactive densifier |
| Product Form | Clear, ready-to-use liquid |
| Appearance | Colorless to pale yellow, translucent liquid |
| Primary Applications | Internal and external concrete surfaces requiring hardening, dustproofing, and curing |
| Key Features | Reactive penetration, non-film-forming, breathable |
| Benefits | Improved compressive strength, reduced dusting, enhanced polishability |
| VOC Content | <50 g/L (compliant with EU Directive 2004/42/EC) |
| Storage Stability | 12 months in original unopened container at 5–30°C |
Q1: What is the primary function of Sika Curehard 24 in concrete applications?
A: Sika Curehard 24 is a reactive liquid curing agent designed to promote efficient hydration and surface hardening of freshly placed concrete. It forms a durable, abrasion-resistant layer that helps retain moisture during critical early-age curing, thereby supporting optimal strength development and surface durability.
Q2: Can Sika Curehard 24 be applied to vertical surfaces or overhead substrates?
A: Yes — its low-viscosity, solvent-free formulation allows for uniform application on vertical walls, columns, and other non-horizontal surfaces using conventional spray equipment or rollers. Proper surface preparation and application technique are essential to ensure consistent coverage and adhesion.
Q3: Is Sika Curehard 24 compatible with integral colorants or decorative concrete finishes?
A: Yes — it is generally compatible with most integral pigments and decorative topping systems when applied after initial set and before final finishing. However, compatibility testing under actual site conditions is recommended to confirm performance and aesthetic consistency.
Q4: How does Sika Curehard 24 differ from traditional membrane-forming curing compounds?
A: Unlike conventional acrylic or wax-based curing membranes, Sika Curehard 24 chemically reacts with free lime and moisture at the concrete surface, contributing to densification and long-term surface integrity. It leaves no peelable film and does not interfere with subsequent coatings or overlays.
Q5: What environmental or safety considerations should be observed during handling and application?
A: Sika Curehard 24 is formulated without solvents or hazardous air pollutants, and presents low volatility under standard conditions. Users should wear appropriate PPE — including gloves and eye protection — and ensure adequate ventilation during application. Always consult the current Safety Data Sheet for site-specific handling guidance.
Contact With Us:
E-mail: wangxingqiang@ericwchem.com
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Building A1, Jiete Industrial Park, Huangpu District, Guangzhou City, Guangdong Province, China
