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Leca® Horticultural Grit
Leca® LWA 2-4mm Horticultural Grit - Lightweight Aggregate
Product Code: 7889

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Leca® LWA Horticultural Grit. The ultimate light weight moisture retaining granular soil improver


Pack size: 50 ltrs, Approximately 22kg

Particle size: Approx. 2-4mm.

Density: The dry bulk density of Leca® LWA horticultural grit is approximately 450kg/m3.
The saturated bulk density is approximately 800kg/m3

Description & Application:
Top quality genuine expanded lightweight aggregate manufactured by Leca(St Gobain) and distributed in the UK by Specialist Aggregates. The product contains a minimum of "fines "allowing for superior drainage and insulation when added to growing media.

The product contains both crushed and broken grains of "Leca" allowing for excellent moisture retention.

Expanded clay granules are made by pelletising and firing clay in a rotary kiln at a very high temperature. As it is fired, the organic compounds in the clay vaporise forcing the pellets to expand and become honeycombed while the outside surface of each granule melts giving a ceramic shell. The resulting granules are lightweight, porous, and have a good resistance to crushing.

Being a natural product expanded clay aggregate contains no harmful substances, it is inert with a neutral pH, The granules are resistant to frost and chemicals, and will not break down in water. They are also non-combustible and have excellent sound and thermal insulation properties.

Particle Size:
Typically:
Sieve Size mm % Passing
6.3 100%
4.75 94%
2.36 56%
1.18 6%
0.075 0.15%
Chemical Composition:
Principal components typically:
SiO2 60%
Al2O3 20%
Fe2O3 8%
K2O 3%
Mg3O 3%




This product is offered with no recommendation as to suitability for purpose. Being natural this product is subject to variation in colour and form.

Specialist Aggregates' Price Promise:
All prices shown include UK VAT and delivery to mainland locations in England, Wales and Southern Scotland - There are no hidden charges on checkout.

We export throughout Europe and Worldwide - please enquire for shipping rates

Rocks in a Box™ For protection and security your product will be shipped within a weatherproof pack within our easy-to-handle double walled cardboard box.

Boxes are delivered by national couriers. Please advise during checkout or contact our office if you have specific delivery requirements or concerns.

Both the inner plastic pack and the outer box can be recycled via normal household or industrial/commercial collections.

Specify: LECA® LWA Horticultural Grit - Supplied by Specialist Aggregates.

Product Code: 7889

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