Leca consists of small, lightweight, bloated particles of burnt clay.The thousands of small, air-filled cavities give Leca its strength and thermal insulation properties.

The base material is plastic clay which is extensively pretreated and then heated and expanded in a rotary kiln. Finally, the product is burned at 1100 °C to form the finished Leca product. 

Chemical Properties: 

Physical Properties:

Expanded Clay Balls are made from 100% natural clay. They are clean, pH stable and offer great aeration and drainage in hydroponics, especially in flood and drain, deep water culture and drip feed systems. Due to their unique structure and ability to cover a large surface area, they offer the ideal environment to foster beneficial bacterial growth around the root zone, leading to naturally healthier plants. Expanded clay can be directly used as horticulture growing media after washing clear.

• Growing media in cutflower and vegetable production
• Hydroponics substrate for interior landscaping
• Constituent for substrates for green roofs
• Hydroponics system vertical hydroponics tower gardern growing system.
• Plant flower balls decorated decorative gravel garden
• Horticulture Grade Expanded Clay Pebbles 

Tricia chai

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 What is Expanded Clay ?

Expanded clay, also known as LECA (lightweight expanded clay aggregate), are formed from small round balls of clay which are heat treated, causing them to expand and become porous and are among the most popular grow media today. They are completely sterile and inert with a neutral pH. They can be sterilized, flushed and re-used and provide good root support, great drainage and aeration.

How to use Expanded Clay into Hydroponics / Aquaponics ?

Expanded Clay Balls are made from 100% natural clay. They are clean, pH stable and offer great aeration and drainage in hydroponics, especially in flood and drain, deep water culture and drip feed systems. Due to their unique structure and ability to cover a large surface area, they offer the ideal environment to foster beneficial bacterial growth around the root zone, leading to naturally healthier plants. Expanded clay can be directly used as horticulture growing media after washing clear.

Why do we choose your company?

We have more than 5 years' experience in Expanded Clay produced, well-noted market knowledge, strict control system, high Company reputation, in time delivery, and stable quality make our old and new customers always choose us!