| Customization: | Available |
|---|---|
| CAS No.: | 9003-11-6 |
| Formula: | C5h10o2 |
Suppliers with verified business licenses
Audited Supplier Audited by an independent third-party inspection agency
To delve deeper into our product offerings, feel free to reach out for comprehensive manuals. Our collection includes the versatile Blend Polyol Series, the adaptable Flexible Foams Series, impressive CASE applications, and much more.
Introduction
DonSpray 502, a pioneering spray-blend polyol, harmonizes perfectly with isocyanate to create foam distinguished by its remarkable features, such as:
Exceptionally fine and consistently uniform cell structure
Remarkably low thermal conductivity for efficient energy conservation
Outstanding fire resistance, ensuring a safer environment
Exceptional dimensional stability, even in low temperatures
This product is the perfect solution for a variety of thermal insulation needs when employing spray methods. It is especially suited for cold room insulation, large-scale vessels, extensive pipeline coverage, and the external and internal walls of buildings.
Our product line offers more diverse specifications. For a complete overview, please contact us to receive our extensive catalogue.
| Appearance | Pale yellow to brown viscous liquid |
|---|---|
| Hydroxyl Value | 200-300 mgKOH/g |
| Dynamic Viscosity (25°C) | 100-200 mpa.s |
| Specific Gravity (20°C) | 1.12-1.20 g/ml |
| Storage Temperature | 10-25°C |
| Storage Stability | 6 months |
Recommended Ratio
| Component | Ratio (pbw) |
|---|---|
| Spray 502 | 100 |
| Isocyanate | 100-105 |
Reactivity Characteristics
Component temperature is optimally set at 20°C. However, the actual temperature may vary based on specific pipe diameters and processing conditions.
| Item | Time (s) |
|---|---|
| Cream Time | 3-5 |
| Gel Time | 6-10 |
Foam Performances
| Items | Test Method | Index |
|---|---|---|
| Spray Density | GB 6343 | ≥35kg/m³ |
| Closed-cell Rate | GB 10799 | ≥90% |
| Initial Thermal Conductivity (15°C) | GB 3399 | ≤24mW/(m·K) |
| Compressive Strength | GB/T8813 | ≥150kPa |
| Adhesive Strength | GB/T16777 | ≥120kPa |
| Elongation at break | GB/T9641 | ≥120kPa |
| Dimensional Stability (24h -20°C) | GB/T8811 | ≥10% |
| Dimensional Stability (24h 70°C) | GB/T8811 | ≤1% |
| Water Absorption | GB 8810 | ≤1.5% |
| Oxygen Index | GB 8624 | ≥26 |
){kind=link}