Product Description:
Tenlead Hydroponic Square Substrate is made of perfect materials, which are phenolic foam. The shape and firmness of the cubes are of a quality that makes processing significantly easier, whether that processing is mechanical or manual. Every cube has a uniform density, firmness and structure. It is 100% environmentally friendly and it is mainly used to grow and maintain the moisture in roots of plants.
| 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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Different Sizes of Phenolic Foam to Meet your Demand:
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