Product Description:
Hydroponic Square Cube made of phenolic foam have good chemical stability, non-toxic and non-polluting, is an important planting substrate for modern agricultural production. Especially suitable for factory production of vegetables, fruits and flowers, it is specially engineered for the hydroponics seedling production of vegetables and herbs as it is having lower density and higher drainage foam.
| Material | phenolic foam |
| Density | 11-20kg/m³ 40-50kg/m³ |
| Pore space | 90-98% |
| PH value | 6.5-7.4 |
| Electrical conductivity(ds/m, 20C degrees) | 0.55 |
| Shrinkage | < 0.01% |
| Compressive strength(kpa) | 20-31 |
| Fully available water(%vol) | 50-61% |
| Water retention time(h) | 72-144 |
| Water retention capacity(%vol) | 50-91% |
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