| Customization: | Available |
|---|---|
| CAS No.: | 9003-11-6 |
| Formula: | C5h10o2 |
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For an in-depth understanding of our innovative product offerings, please reach out. We provide extensive product manuals covering the Blend Polyol Series, Flexible Foams Series, CASE, and more!
Introduction
Introducing DonSpray 502-a revolutionary spray-blend polyol that, when combined with isocyanate, creates foam with unparalleled characteristics, such as:
Remarkably fine and uniformly distributed cells
Exceptional low thermal conductivity for optimal insulation
Outstanding fire resistance for enhanced safety
Superior dimensional stability even at low temperatures
DonSpray 502 is the ideal choice for a wide array of thermal insulation applications utilizing spray techniques. Perfect for areas including cold rooms, large vessels, extensive pipelines, and both exterior and interior building walls.
Discover a world of specifications! Contact us to receive the complete 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
Optimal component temperature is maintained at 20°C, though actual values may vary depending on pipe diameter 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 |
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