1. Definition
RCB (Rigid Composite Board) flooring is a high-stability, eco-friendly hybrid flooring material that belongs to the Hybrid Flooring category. Its core layer is made from inorganic mineral powders (such as silicates and magnesium-aluminum compounds) combined with high-polymer composite materials. Compared to SPC (Stone Polymer Composite) flooring, RCB flooring offers better dimensional stability, higher environmental standards, and a more comfortable underfoot feel.
2. Composition and Structure of RCB Flooring
RCB flooring typically consists of a four-layer or five-layer structure:
1. Wear Layer
• Made of transparent PVC or polyurethane, providing scratch resistance and stain protection for durability.
2. Decor Layer
• Uses high-definition printing technology to replicate realistic wood, stone, or other design effects, ensuring an aesthetically pleasing look.
3. RCB Core Layer
• Primarily composed of inorganic mineral powder + high-polymer composite materials, making it more eco-friendly than SPC while offering excellent rigidity and stability.
• Provides high-density, water resistance, and dimensional stability.
4. Backing Layer
• Enhances structural support, prevents moisture damage, and increases durability.
5. Acoustic Underlayment (IXPE / EVA Foam) (Optional)
• Improves underfoot comfort and sound absorption, reducing impact noise.
3. RCB Flooring vs. SPC Flooring
| Comparison | RCB (Rigid Composite Board) | SPC (Stone Polymer Composite) |
| Core Material | Inorganic mineral powder + high-polymer resin | Calcium carbonate (limestone) + PVC |
| Density | 1.6 – 1.8 g/cm³ | 1.9 – 2.1 g/cm³ (heavier and harder) |
| Eco-Friendliness | No plasticizers, VOC-free, more eco-friendly | May contain trace plasticizers |
| Dimensional Stability | Lower thermal expansion, less prone to deformation | More affected by temperature changes |
| Water Resistance | 100% waterproof | 100% waterproof |
| Scratch Resistance | High | High |
| Underfoot Comfort | Slightly softer, more flexible | Harder, less forgiving |
| Installation | Click-lock system, easy installation | Click-lock system, easy installation |
| Best for | Homes, commercial spaces, areas with temperature fluctuations | High-traffic areas, offices, retail spaces |
4. Advantages of RCB Flooring
• ✅ Environmentally Friendly
• No plasticizers, formaldehyde-free, and compliant with international eco-certifications (such as FloorScore and Greenguard).
• ✅ High Dimensional Stability
• Less affected by temperature changes, making it ideal for regions with large seasonal fluctuations.
• ✅ 100% Waterproof
• Perfect for kitchens, bathrooms, and basements.
• ✅ Comfortable Underfoot Feel
• Slightly more flexible than SPC, reducing impact noise and improving walking comfort.
• ✅ Scratch and Wear Resistance
• Suitable for high-traffic areas like shopping malls, offices, and gyms.
• ✅ Easy Installation
• Utilizes a click-lock system (no glue or nails required), allowing for fast and efficient installation.
5. Best Applications for RCB Flooring
• Residential Spaces: Living rooms, bedrooms, kitchens, and bathrooms
• Commercial Areas: Hotels, offices, shopping malls, and showrooms
• High-Humidity Environments: Basements, balconies, and restaurants
• Compatible with Underfloor Heating: More stable than SPC, making it suitable for heated flooring systems.
6. Future Trends in RCB Flooring
Due to its eco-friendliness, stability, and comfort, RCB flooring is gaining popularity in markets with strict environmental regulations (such as North America and Europe). As smart manufacturing, nanomaterials, and 3D printing technologies advance, future developments may include:
• Further enhanced durability and environmental sustainability
• Automated installation systems
• Self-repairing flooring materials
7. Conclusion
RCB (Rigid Composite Board) flooring is a durable, eco-friendly, stable, and easy-to-install hybrid flooring option. Compared to SPC, it provides better environmental safety, improved dimensional stability, and a more comfortable feel underfoot. It is particularly well-suited for premium residential and commercial projects, as well as regions with significant temperature variations. With ongoing advancements in material science and manufacturing technology, RCB flooring is expected to become a mainstream choice in the hybrid flooring market.