LECA®
Leca® is a Lightweight Expanded Clay, formed by the baking of clay in a rotary kiln, at temperatures of up to 1150°C. The process transforms the clay into various lightweight ceramic granules, which have a hard ceramic shell and a porous core.
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Leca® is the world leader in horticultural, agricultural & hydroponic substrates and your first choice in lightweight building aggregates.
Benefits of leca®
Durable
Expanded clay is durable, has long lifetime and requires no maintenance
Adds Strength
Expanded clay can reduce the weight of concrete by almost 50% without compromising strength
Strong
It can be used as loose fill and insulation in road and rail embankments and can sustain dynamic loads from heavy high-speed trains
Recyclable
Expanded clay is 100% recyclable or reusable. There are no problems with disposing of demolition waste and no use of new materials, new resources or new energy
Lightweight
It is 4-5 times lighter than loose gravel or loose fill crushed stone
Resistant To Fire
It is classified as a fully non-combustible material. It has no reaction to fire, does not emit gases or smoke and retains its mechanical resistance and all other thermal and physical characteristics. It is an excellent protection against fire
Types of leca® we offer
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Round Granules
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Higher insulation (more closed pores)
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Better drainage (bigger gaps between granules)
Fragmented Granules
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Better moisture retention (more open pores)
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Better soil aeration (promotes healthy bacterias)
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Increases root biomass (sharp edges split and induce exponential root development)
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Size of Granules
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2-4mm Round
4-10mm Round
4-10mm Broken
10-20mm Round
Bag Sizes:
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10 Litre
50 Litre
1000 Litre (1m3)
3000 Litre (3m3)
uses of leca®
Top layer
Drainage Media
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Soil conditioner (moisture trap)
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Vermiculite/Perlite Replacement
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Hydroponic Media
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Aquaponic Media
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Orchid Media
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Propogation/Cuttings
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Values, Mission & vision
LECA® Values
They are dedicated to environmental protection and sustainability. LECA® LWA, offers numerous environmental benefits throughout its life cycle, from production to reuse. With their expertise, innovation, and commitment to customers, they ensure lasting solutions. LECA® prioritises transparency, collaboration, and continuous improvement to advance sustainability goals and build a greener future
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LECA® Mission
Their mission is to minimise carbon footprint by enhancing industrial processes, recognising the value products bring to housing, infrastructure, and water management projects. Through innovative solutions, they aim to address the challenges of climate change, ultimately improving future living conditions. They are committed to benefiting the environment and communities worldwide.
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LECA® Vision
They are committed to environmental stewardship, crafting and delivering resource-efficient products with a strong emphasis on sustainability. Their offerings not only alleviate the effects of climate change but also purify future water sources. Their aim is to achieve net-zero carbon emissions by 2050, aligning with Saint-Gobain's commitments and ensuring a cleaner, healthier planet for all.