Main Products: Polyurethane ,Rigid Foam System ,Blend Polyol
Rigid foam system for spray insulation
Negotiable /Ton
Min.Order:10 Tons
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Shanghai Dongda Polyurethane Co., Ltd.
Business Type: Manufacturer,Trading Company
Shanghai ChinaMain Products: Polyurethane ,Rigid Foam System ,Blend PolyolProduct Details
Blend polyether polyol for spray insulation
Physical properties
| Appearance | Light yellow to brown yellow transparent liquid | |
| OH | (mgKOH/g) | 300-450 |
| Dynamic viscosity(25) | mPa.s | 100-250 |
| Density(20) | g/ml | 1.10-1.16 |
| Storage Temperature | 10--25 | |
| Storage stability | month | 6 |
Process and reaction characteristics
| Handed mix | For high pressure machine | ||
| Ratio POL/ISO | 1:1.0--1.1.10 | 1:1.0--1.10 | |
| Rise time | s | 20--40 | 15--35 |
| GT | s | 80-200 | 80-160 |
| TFT | s | ≥150 | ≥150 |
| Free Density | kg/m3 | 22-40 | 22-38 |
Foam Properties
| Molded Density | GB/ 6343 | 60-80kg/m3 |
| Obturator rate | GB/ 10799 | ≥90% |
| Thermal conductivity(15) | GB/ 3399 | ≤33mW/(m.K) |
| Compressive strength | GB/T 8813 | ≥300kPa |
| Absorption | GB/ 8810 | ≤3(v/v)% |
| Dimensional Stability(24h,100) | GB/ T8811 | ≤1.5% |
| (24h,-30) | ≤1.0% | |
| The long-term heat resistance | ≤150 |
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