| Customization: | Available |
|---|---|
| CAS No.: | 9003-11-6 |
| Formula: | C5h10o2 |
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For an in-depth exploration of our leading-edge product manuals, please do not hesitate to reach out. Our offerings include the innovative Blend Polyol Series, the adaptable Flexible Foams Series, the versatile CASE solutions, and more. Each series is meticulously crafted to cater to diverse industrial needs.
Introduction
Meet DonSpray 502, an exceptional spray-blend polyol that ingeniously reacts with isocyanate to create foam with unparalleled attributes, such as:
Intricately fine and consistently uniform cells
Remarkably low thermal conductivity
Outstanding fire resistance capabilities
Exceptional stability in low-temperature environments
This product is the quintessential choice for a wide array of thermal insulation applications that utilize spray methods. It is perfect for cold rooms, large-scale vessels, extensive pipelines, and the walls of both interior and exterior building structures.
Our product range features numerous specifications to meet your specific needs. Please contact me, and I will gladly provide 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
At a component temperature of 20°C, actual values may vary according to the pipe diameter and processing conditions, ensuring optimal performance.
| 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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