Donol ED 28 is a kind of polyether polyol,with a functionality of 2 and molecular of 4000,
this high-activity polyether polyol can be used for the preparation of footwear material,
which can increased the product's elongation while curing speed increases and stripping time gets shorter.
| Property | Parameter |
| Appearance | colorless transparent Liquid |
| Water content(%) | ≤0.05 |
| Hydroxyl value(mgKOH/g) | 26.5-29.5 |
| Unsaturation value(mol/kg) | / |
| Acid value(mg KOH/g) | ≤0.05 |
| K+ (ppm) | ≤5 |
| pH | 5-7 |
| Chroma(APHA) | ≤50 |