| Customization: | Available |
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| CAS No.: | 9003-11-6 |
| Formula: | C5h10o2 |
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For comprehensive product manuals that dive deeper into our cutting-edge solutions, please don't hesitate to reach out. Uncover the full potential with our Blend Polyol Series, explore the versatility of our Flexible Foams Series, and harness the innovation behind CASE and more.
Introduction
DonSpray 502 is a revolutionary spray-blend polyol expertly formulated to react with isocyanate, yielding foam that exemplifies remarkable properties, including:
Impressively fine and uniformly structured cells
Exceptionally low thermal conductivity for enhanced efficiency
Unparalleled fire resistance for superior safety
Outstanding low-temperature dimensional stability, ensuring reliability under cold conditions
An optimal choice for a wide range of thermal insulation applications using advanced spray methods. Perfectly suited for cold rooms, large vessels, extensive pipelines, as well as the exterior and interior walls of buildings.
For a deeper dive into our extensive specifications, please contact me. I would be delighted to send you our comprehensive 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 maintained at 20°C. Please note that actual values may vary depending on pipe diameter and specific 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 |
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