| Customization: | Available |
|---|---|
| CAS No.: | 9003-11-6 |
| Formula: | C5h10o2 |
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For those eager to explore our extensive range of product manuals, please feel free to reach out directly. Our offerings include the versatile Blend Polyol Series, the adaptable Flexible Foams Series, CASE solutions, and many more tailored options.
Introduction
Introducing DonSpray 502, a premium spray-blend polyol meticulously engineered to react with isocyanate, resulting in foam renowned for its exceptional qualities, such as:
Fine and uniform cells that ensure optimal performance and reliability.
Low thermal conductivity, enhancing energy efficiency and sustainability.
Excellent fire resistance, providing a higher level of safety and security.
Superior low-temperature dimensional stability, maintaining integrity under extreme conditions.
This innovative solution is perfectly suited for a wide array of thermal insulation applications using advanced spray methods. It is ideal for use in cold rooms, large vessels, extensive pipelines, and serves both exterior and interior walls of buildings, providing unparalleled insulation.
Discover even more product specifications by contacting 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
Maintain component temperature at 20°C. Note that the actual value may vary based on factors such as 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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