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Rigid Foam Polyether R2490
Rigid Foam Polyether R2490
R2490 is a sorbitol based polyether polyol, it is suitable to produce all kind of rigid foams, especially for fridge, building panels, pipe in pipe etc., it has high functionality and the foams prepared from it has good dimensional stability.
Typical Physical Properties
| Property | R2490 | Standard |
| Appearance | Light yellow liquid | Q/WHRW 02-2019 |
| Viscosity (25℃), mPa·s | 9200~11800 | GB/T 12008.7-2010 |
| Water content, % | ≤0.15 | GB/T 22313-2008 |
| Density, g/cm3 | 1.10±0.10 | GB/T 15223-2008 |
| PH | 9~12 | GB/T 12008.2-2010 |
| OHV, mg KOH/g | 500±15 | GB/T 12008.3-2009 |
Package(s)
Iron drums, IBC tanks, tank wagons and other suitable packages, if necessary.
Storage
R2490 should be kept in properly sealed, moisture-tight containers and stored indoors at ambient temperature (15-35℃) in a dry and well-ventilated area. Storage at low temperature (below5℃) may lead to viscosity increases markedly, and this may cause difficulties in processing. Extended storage at temperatures above 60℃ is not recommended to prevent from deterioration of the product quality.
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