
The advantages of molded foam
1. Superior Comfort & Ergonomics
- Molded foam adapts to body contours, providing tailored support and pressure relief, which reduces fatigue during prolonged sitting.
- Its high density (up to 65kg/m³) ensures better resilience and longevity compared to ordinary sponge (25-40kg/m³).
2. Durability & Shape Retention
- Resists deformation over time due to advanced polyurethane formulation and molded manufacturing.
- Maintains structural integrity longer than ordinary sponge, which sags easily.
3. Health & Safety
- Free from recycled industrial waste (unlike some low-cost sponges), reducing odor and harmful substance risks.
- Supports proper posture, mitigating spinal strain.
4. Design Flexibility
- Can be precision-molded into complex ergonomic shapes for optimal aesthetics and functionality.
- Often paired with steel frames (e.g., Guoshen Furniture’s designs) for enhanced stability and durability.
5. Economic Value
- Longer lifespan offsets higher initial cost compared to ordinary sponge.
Key Differences Between Molded Foam and Ordinary Sponge
Feature | Molded Foam | Ordinary Sponge |
Density | 45–65kg/m³ (higher support) | 25–40kg/m³ (softer, less durable) |
Material | High-grade polyurethane, molded | Basic polyurethane/ether |
Manufacturing | Liquid injection molding | Simple foaming process |
Longevity | Retains shape for years | Prone to sagging |

The molded foam chairs produced by Guoshen Furniture feature an ergonomically designed solid steel frame inside, which provides better support, a more streamlined shape and greater durability.