In polyurethane systems, polyester polyols play a crucial role in determining foam properties. One of the most effective ways to enhance these polyols is by incorporating SAN (Styrene Acrylonitrile) fillers. Pluskim manufactures SAN-filled polyester polyols to improve mechanical strength, cell stability, and viscosity control—all without compromising reactivity.
Benefits of SAN in Polyester Polyols
Finely dispersed SAN particles in the polyol matrix:
- Increase mechanical strength (tensile, hardness)
- Improve foam cell stability
- Reduce shrinkage and collapse risks
- Enhance surface quality
- Maintain reactivity while offering viscosity control
These characteristics are ideal for high-resilience and structure-demanding foam applications.
Technical Specs – Pluskim SAN-Filled Polyester Polyols
| Property | Typical Range |
| SAN Content (solids) | 10% – 30% |
| Hydroxyl Value | 25–60 mgKOH/g |
| Viscosity @25°C | 3,000 – 6,000 mPa·s |
| Acid Value | < 2 mgKOH/g |
| Compatibility | Flexible, semi-rigid, and HR PU systems |
Application Areas
- Furniture foams – Seating and cushions
- Automotive foams – Seats, headrests
- Construction – Acoustic and impact-absorbing foam
- Mattress industry – High-resilience foam blocks
- Packaging – Form-retaining cushioning foams
Particularly suited for open-cell PU systems requiring dimensional stability and soft touch.
Why Choose Pluskim?
- Advanced production ensures uniform SAN dispersion
- Fast delivery from stock
- Tailor-made viscosity and reactivity adjustments
- REACH-compliant, eco-conscious production
Pluskim’s SAN-filled polyester polyols enhance polyurethane foam systems by delivering improved mechanical strength and superior process control. Ideal for manufacturers seeking durable yet flexible foams with optimized performance.
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