Spray Blend Polyol EX-7220 Used In Exterior Wall Integrated Insulation
EX-7220 is a blended spray polyol tailored for water-blown foaming systems. Commonly used in building exterior wall insulation, integrated insulation & waterproofing and cold storage insulation projects, it features excellent temperature adaptability and miscibility for use across various working environments and equipment. Foam produced with this material provides premium thermal insulation, strong crack resistance, high closed-cell content, great compressive strength and stable adhesion.
| Unit | EX-7220 |
|---|---|
| Appearance | Light yellow to brownish yellow transparent liquid |
| Viscosity (25℃) | 300-500 mPa*S |
| Specific Gravity (20℃) | 1.05-1.15 g/ml |
| Hydroxyl Value | 100-200 mgKOH/g |
| H₂O | 4-5 % |
| REACTION PROPERTY | |
| Material temperature | 18-22 ℃ |
| Mixing time | 2-3 s |
| Cream time | 3-5 s |
| Stringing time | 6-12 s |
| Free foam density | 30-34 Kg/m³ |
| High-Pressure Machine Mixing | |
| Cream time | 1-3 s |
| Stringing time | 3-5 s |
| Free foam density | 30-34 Kg/m³ |
| PRODUCT PROPERTY | |
| Overall density | 40-48 kg/m3 |
| Compressive strength | ≥150 kPa |
| Dimensional stability | ≤1 % |
| Thermal Conductivity | ≤0.027 |
| Closed-Cell Rate | ≥90 % |
| Water Absorption | ≤3 % |
| Flame Retardant Performance (Oxygen Index) | ≥28 |
200kg per steel drum
Store cool and dry at 15-25℃. Blanket residual product in drums with nitrogen if not fully consumed. Unopened shelf life: 6 months.
Perform all operations in adequate ventilation. Protect skin with appropriate gloves and apparel. Extended or frequent skin contact can lead to allergic responses. Proper eye protection is critical -- always use approved safety eyewear while handling.
- Skin: Immediately cleanse with soap and water. Discard or launder soiled clothing prior to reuse. Obtain medical care if an allergic reaction occurs.
- Eyes: Irrigate eyes with running water for no less than 15 minutes and visit a doctor.
- Ingestion: Call a physician immediately. Vomiting or gastric aspiration must be done only under medical supervision. Never give liquids or food to an unconscious individual.
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.