Currently, concrete or other cement-based wear-resistant aggregate garage flooring often faces quality issues such as surface dusting and sand formation. These problems arise from cement solidification and strength loss, which ultimately reduce the flooring’s wear resistance.
To address these challenges, a new material called concrete sealing and curing agent has been developed. This agent boasts high permeability and strong water solubility. It penetrates deeply into the concrete, reacts chemically with its components, and forms a gel that shrinks the pores and cracks. This process consolidates the concrete into a dense, unified structure, significantly enhancing its resistance to permeability, wear, freeze-thaw cycles, and surface hardness. As a result, concrete sealing and curing agents provide a long-lasting, durable, wear-resistant, and dust-free finish for concrete floors.
1. Construction Process
Cleaning the base surface → Polishing → Repairing defects → Spraying concrete sealing and curing agent → Moisturizing the floor → Preliminary polishing → Spraying polishing solution → Final comprehensive polishing.
(1) Cleaning the base surface: Use a professional floor scrubber to thoroughly clean the floor, removing debris, dust, and floating slurry. This exposes a fresh concrete surface and opens capillary pores, allowing better penetration of the sealing and curing agent.
(2) Attach 150-mesh epoxy resin grinding discs to a stone polishing machine and polish the floor twice. Use a water-absorbing machine to remove the resulting slurry.
(3) Switch to 300-mesh epoxy resin grinding discs for a comprehensive polish. You may moisten the floor with clean water before polishing or grind directly with water to fully expose the cement’s capillary pores.
(4) Evenly spray the concrete sealing and curing agent over the polished surface. After 40–60 minutes, when the surface becomes tacky, rinse with clean water. For prefabricated buildings, remove all visible water and allow the floor to dry naturally for more than 24 hours to maximize agent penetration and chemical reaction, producing a greater amount of hardening substances.
(5) After 24 hours, soak the floor with clean water to enhance permeability, allowing the agent to penetrate deeper and washing away any accumulated residue.
(6) Use a professional polishing machine fitted with 500-mesh epoxy resin grinding discs to polish the floor 2–3 times. This can be done wet or dry with water, serving as a preliminary polish for the entire base surface.
(7) Spray a polishing solution, let the floor dry, then use 1000-mesh epoxy resin grinding discs to polish the surface 2–3 times until it feels smooth with a slight gloss.
2. Technical Benefits
(1) Hardening and Wear Resistance: The sealing and curing agent chemically reacts with concrete components to form hard substances that block voids, enhancing surface hardening and wear resistance. This creates a durable protective layer similar to marble.
(2) Sealing: Increasing concrete density effectively prevents external contaminants from penetrating, extending the floor’s lifespan.
(3) Chemical Resistance: The gel-like chemical structure resists erosion from most chemicals.
(4) Dust Prevention: Effectively eliminates dust generated by concrete surfaces.
(5) Aging Resistance: Resistant to yellowing and whitening, maintaining appearance despite long-term use and wear.
(6) Breathability: Prevents most solid and liquid impurities from entering the concrete while allowing moisture to escape, avoiding issues such as bulging, peeling, and micro-cracks.
(7) Ease of Construction and Environmental Benefits: The process is simple, environmentally friendly, and produces a waxing-like luster that improves over time. The surface becomes easier to clean, reducing maintenance costs. The agent is colorless, odorless, solvent-free, and aligns with current environmental and safety standards.
3. Construction Precautions
(1) Surface Preparation: Remove any existing coatings (such as wax layers, curing agents, or resin coatings) and oil stains. Floors with heavy oil contamination require special treatment.
(2) Temperature Control: Maintain floor temperature between 2°C and 50°C during application.
(3) Storage and Packaging: Store at temperatures above 0°C with no expiration date. Shake well if turbidity occurs before use.
(4) Transportation: Ensure packaging is intact and sealed. In case of leakage, rinse thoroughly with water.
(5) Safety: The product is non-corrosive, non-toxic, and odorless. Avoid prolonged contact with the agent and keep it out of reach of children.
4. Technical and Economic Analysis
(1) Technical Specifications: After 28 days, compressive strength reaches C80, flexural strength 10 MPa or higher, Mohs hardness 6 or above. The material offers strong dust resistance, high corrosion resistance, and withstands weak acids, weak bases, and other chemicals.
(2) Cost Efficiency: Usage is 0.3–0.6 kg per square meter, with a comprehensive cost of 12–18 RMB per square meter. This saves approximately 5 RMB per square meter compared to other wear-resistant flooring materials.
The key to successful curing agent flooring lies in selecting the right materials and controlling grinding and penetration times. Each polishing step must be followed by thorough cleaning to avoid dust and stains after sealing.
Source: Architectural Technology Magazine
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