Ferrous sulphate

With the help of ferrous sulphate (iron sulphate) we can give wood an aged (grey) color. Normally, untreated wood will also get this on its own, but this takes a while. Do You want to go straight for the gray look of the wood? Then we can use ferrous sulphate to coat Your facade cladding. This method is only suitable for Siberian Larch.

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