Water-blown Spray Blend Polyol EX-7025 for Thermal Insulation and High Crack Resistance in Building Exterior Walls
EX-7025 is a spray blend polyol specifically designed for water-blown foaming systems. This advanced formulation is widely used in building exterior wall insulation, integrated insulation and waterproofing, cold storage, and various thermal insulation projects.
The system features excellent temperature adaptability and mixability, making it suitable for construction under diverse environmental conditions and with different equipment types. The resulting foam delivers outstanding thermal insulation, high crack resistance, high closed-cell content, high compressive strength, and excellent adhesion properties.
| Parameter | Unit | EX-7025 |
|---|---|---|
| Appearance | Light yellow to brownish yellow transparent liquid | |
| Viscosity (25℃) | mPa*S | 300-500 |
| Specific Gravity (20℃) | g/ml | 1.05-1.15 |
| Hydroxyl Value | mgKOH/g | 100-200 |
| H₂O | % | 4-5 |
| REACTION PROPERTY | ||
| Material temperature | ℃ | 18-22 |
| Mixing time | s | 2-3 |
| Cream time | s | 3-5 |
| Stringing time | s | 6-12 |
| Free foam density | Kg/m³ | 27-32 |
| High-Pressure Machine Mixing | ||
| Cream time | s | 1-3 |
| Stringing time | s | 3-5 |
| Free foam density | Kg/m³ | 27-32 |
| PRODUCT PROPERTY | ||
| Overall density | kg/m3 | 35-45 |
| Compressive strength | kPa | ≥150 |
| Dimensional stability | % | ≤1 |
| Thermal Conductivity | ≤0.027 | |
| Closed-Cell Rate | % | ≥90 |
| Water Absorption | % | ≤3 |
| Flame Retardant Performance (Oxygen Index) | ≥26 | |
200kg per steel drum
Store in a cool, dry place with recommended storage temperature of 15-25℃. If you cannot use one drum completely at a time, please inject N₂ gas to preserve product integrity.
The storage time in original packaging is 6 months.
Use in well-ventilated areas. Avoid skin contact by using protective gloves and clothing. Repeated or prolonged skin contact may cause allergic reactions.
Eye protection is critical - always use approved safety glasses or goggles when handling this product.
- Skin Contact: Immediately wash with soap and water. Remove contaminated clothing and launder before reuse. Seek medical attention if allergic reactions occur.
- Eye Contact: Immediately flush with water for at least 15 minutes and contact a physician.
- Ingestion: If swallowed, contact a physician immediately. Remove stomach contents by gastric suction or induce vomiting only as directed by medical personnel. Never give anything by mouth to an unconscious person.
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