Ytong, pronounced “ee-tong”is a brand name for a white variant of Autoclaved Aerated Concrete (AAC). It is also known by other brand names such as Thermalite, Celcon and Aircrete, most of which are a grey colour and based on a potash composition. The nature of standard grey AAC blocks is such that it can potentially leech out potentially harmful sulphurous compounds towards ants, hence we do not use grey AAC. Ytong is made with natural raw materials meaning that it is non-toxic and has a more pleasant white appearance.

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