Why Are More Projects Choosing Calcium Silicate Boards?
As a professional calcium silicate board manufacturer, we provide a detailed analysis of the fundamental differences between these two common building materials:
Key Differences at a Glance:
| Comparison Item | Calcium Silicate Board | Gypsum Board |
|---|---|---|
| Main Composition | Siliceous + Calcareous Materials | Gypsum + Facing Paper |
| Fire Rating | Class A1 Non-combustible | Class B1 Flame-retardant |
| Moisture Resistance | Water Absorption ≤10% | Prone to Water Damage |
| Service Life | 30+ Years | 8-10 Years |
| Reference Price | ¥60-100/m² | ¥30-50/m² |
Five Key Differences Explained
1. Material and Structural Differences
- Gypsum Board: Gypsum core + paper facing
- Calcium Silicate Board: Homogeneous silicon-calcium material
2. Fire Performance Comparison
- Gypsum board chars when exposed to fire
- Calcium silicate board withstands 1000℃ without burning
- No toxic gas emission during fires
3. Moisture Resistance and Durability
- Gypsum board easily molds and warps when damp
- Calcium silicate board suitable for wet areas like bathrooms
- Passes 50 freeze-thaw cycles without damage
4. Installation Characteristics
- Gypsum board easier to cut and process
- Calcium silicate board requires special tools
- Similar installation methods for both
5. Economic Analysis
- Calcium silicate board 30-50% higher initial cost
- But lower lifecycle costs
- Maintenance-free features reduce long-term expenses
Purchasing Recommendations
Recommended uses for calcium silicate board:
- Wet areas like kitchens and bathrooms
- Public spaces with high fire safety requirements
- Projects requiring long-term durability
- Special environments (basements/labs etc.)
Suitable uses for gypsum board:
- Dry areas in residential buildings
- Temporary partitions
- Budget-constrained projects
- Complex design requirements
Calcium Silicate Board Technical Specifications
| Test Item | Standard Value | Actual Data |
|---|---|---|
| Density | 1.0-1.5g/cm³ | 1.2g/cm³ |
| Flexural Strength | ≥8MPa | 10-12MPa |
| Water Absorption | ≤20% | 8-10% |
| Fire Rating | Class A | Class A1 |
FAQ
Q: Which is better for home decoration?
A: Calcium silicate for wet areas, gypsum board for dry areas
Q: Is calcium silicate board difficult to install?
A: Requires professional tools – we provide technical guidance
Q: How to identify quality calcium silicate board?
A: Choose reputable manufacturers and check test reports