The Toxic Ingredient
In an effort to lower costs and increase production, some Chinese manufacturers began adding ‘Fly Ash’ and other ingredients to their products.
Fly Ash has nothing to do with buzzing pests – it is a residue of coal combustion and has been used successfully in the US for decades as an admixture in concrete design as a supplement for cement. The ash is added into concrete as a replacement for some of the cement. This made the concrete more affordable, while still maintaining structural qualities. Once the Fly Ash is integrated with the mix, it hardens with the concrete and solidifies.
Coal contains a small percentage of sulfur and other minerals. When burned and consumed, these minerals remain in the ash. When used in concrete mixes, the minerals do not escape when solidified. However, in the production of drywall, the use of Fly Ash does not result in solid form and can escape in the form of gases. These gases can be toxic.