planting walls and home gardening etc
Rock wool is a mineral wool made from molten basalt and limestone rock that is spun into fibres and then compressed into cubes,blocks or slabs.
Care should be taken when handling rock wool by wearing gloves and mask. The rock wool fibres can cause irritation to the skin, and if breathed in they can also irritate the lungs.
1. Don't squeeze the Rock wool especially when it's wet.
2. Always pre-condition Rock wool in pH 5.5 water before using to disolve lime.
3. Pre-soak from 30 seconds to 30 minutes, depending on size of Rock wool.
4. Water only when there's light - never water in the dark.
5. Optimum room temperature for growing environment is 18.5- 28 for most species. Temperatures above 26.7o C inside the growing media leads to depleted oxygen levels, encouraging root disease.
6. With low light, water with more volume with fewer cycles - and visa versa.
7. Do NOT keep Rock wool sopping wet. lots of algae is a sign of over watering. Minimize watering while plant is young. Too much water prevents root setting which is essential for growing a healthy plant.
Water holding rate | 700% |
Permeability coefficient | 1.25cm/s |
Volume water absorption | 800% |
Total porosity | 92% |
PH | 7.4 |
Average fiber diameter | 4.96μm |









1.Are you factory or trading company?
We are factory ,our factory founded in 2010 located in Dacheng,Langfang City, Hebei Province,near to our capital Beijing City .Our factory occupy 40000 square meter ,welcome your visit any time.
2.Is free sample available ?
Sample is available and small piece sample is free ,for big piece sample we will collect some surcharge which will be return to you when you order mass quantity .
3.what is your delivery time?Generally the delivery will be within 2 weeks ,and some stock products can delivery any time as you need.
4.Is OEM or ODM service availableYes,we can provide OEM and ODM service