| Customization: | Available |
|---|---|
| CAS No.: | 9003-11-6 |
| Formula: | C5h10o2 |
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For further product manuals and in-depth insights into our offerings, please reach out to me. Our product line includes the innovative Blend Polyol Series, the versatile Flexible Foams Series, and the robust CASE applications, among many others.
Introduction
DonSpray 502 is a cutting-edge spray-blend polyol, engineered to react seamlessly with isocyanate. This reaction yields a foam boasting remarkable properties such as:
Finely structured and uniform cells that enhance performance
Exceptionally low thermal conductivity for superior insulation
Outstanding fire resistance for enhanced safety
Unmatched dimensional stability even in low-temperature environments
This product is perfect for a wide range of thermal insulation applications using spray techniques. Ideal uses include insulation for cold rooms, large vessels, extensive pipelines, as well as both exterior and interior walls of buildings.
Our products come with extensive specifications tailored to your needs. Please contact me for a 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 standardized at 20°C, though the actual value may vary based on pipe diameter and specific processing conditions. Tailor your approach for optimal results.
| 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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