The sand that does not get wet, even under water!
Each tin contains 4 bags x 30 grams of hydrophobic sand of different colors: orange, blue, green and purple.
Age: +3 years.
Recommended Age: +6 years.
Watch the video at the bottom of the page.
Warning: Last items in stock!
This sand has been trated with silicon vapour.
In the desert has been experimented its properties placing 10 cm. of hydrophobic sand below the soil. This has prevented the sandy soil seeping rain water, allowing it to retain the necessary moisture for plant growth.
Watch the video: