| Customization: | Available |
|---|---|
| CAS No.: | 9003-11-6 |
| Formula: | C5h10o2 |
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For comprehensive product manuals and to explore our extensive range, please do not hesitate to get in touch. Our offerings include the Blend Polyol Series, Flexible Foams Series, CASE applications, and more. Your satisfaction and understanding of our products are our top priorities.
Introduction
DonSpray 502 is an innovative spray-blend polyol that seamlessly interacts with isocyanate to craft foam with remarkable qualities, such as:
Fine and uniform cells, ensuring a consistent and robust structure.
Low thermal conductivity, offering superior insulation performance.
Excellent fire resistance, providing safety and peace of mind.
Superior low-temperature dimensional stability, maintaining integrity under extreme conditions.
Perfectly suited for diverse thermal insulation applications utilizing spray methods. Ideal for cold storage facilities, large-scale vessels, extensive piping systems, and both exterior and interior walls of buildings. Experience enhanced efficiency and protection across various settings.
For additional specifications and detailed insights into our product offerings, please contact us to receive a comprehensive catalogue that aligns with your specific needs.
| 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 set at 20°C. Note that actual values may fluctuate based on the diameter of the piping and specific processing conditions, ensuring adaptability and optimization for each unique application.
| 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 |
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