DIMONDS® PP1831/B1 Blend Polyols for PU Foam Pipeline Supports
Description
DIMONDS® PP1831/B1 is a two-components closed-cell polyurethane foam system. It is an thermal insulation foam for pipeline supports ,with high fir resistance reaching DIN 4102 B1. This is 100% water-blown product ,with zero ODP and low GWP.
Physical Properties
| Description | Units | DIMONDS® PP1831/B1 | DIMONDS® ISO1800 |
| Appearance | By visual | Light yellow transparent liquid | Brown liquid |
| Viscosity Specific | mPa.s/25℃ | 800-1200 | 200-250 |
| Gravity | g/ml (20℃(68℉)） | 1.15-1.25 | 1.20-1.25 |
Reaction Performance（by hands)
| Item | Unit | Specification |
| DIMONDS® PP1831/B1 | g | 100 |
| DIMOND® ISO1800 | g | 150-200 |
| Cream time | sec | 20-30 |
| Gel time | sec | 80-120 |
| Free rising density | Kg/m3 | 100, 200, 300, 500 |
Processing information
| Item | Unit | Specification |
| Mold temperature | ℃ | 60-70 |
| Material temperature | ℃ | 20-25 |
| Demold time | min | ≥30 |
Foam Performances
| Items | Units | Specification | Method |
| Density | kg/m3 | ≥160/300/500 | ASTM D1622-08 |
| Thermal Conductivity, 20℃ | W/(m.k) | ≤0.035/0.055/0.070 | ASTM C518-10 |
| Compressive Strength | MPa | ≥2.0/5.0/18.0 | ASTM D1621-10 |
| Closed cell content | % | ≥93 | ASTM D6226 |
| Oxygen index | % | ≥30 | GB/T 2406.2 |
| Flammability | B1 | DIN 4102-1 |
The above testing data have been generated in lab or field conditions which are typical for this application. They are believed to be correct but data variations due to varying processing or ambient conditions can not be excluded. The customer remains responsible for making his own interpretation of data and suitability of the chemicals to his particular operation.
Handling and Storage
DIMONDS® PP1831/B1 should be protected from moisture by keeping containers sealed when not in use. Drums have to be stored indoors to protect the material from water ingress, frost and direct heat from the sun. Under temperature conditions and in properly sealed containers ,the storage life of the polyol is 6 months.
The optimum storage temperature should be 10-30℃.
