iron vitriol

Iron vitriol gives patina and a certain level of protection. The iron vitriol powder is dissolved in hot water. The solution is applied to the wood with a brush. After a few months, the wood gradually changes color and takes on a gray hue; the stronger the concentration, the darker the wood becomes. Iron vitriol is an outdoor product and should not be used indoors. The treatment does not need to be repeated. One can add a bag (water-soluble silver stain), solely to see where it has been applied. The iron vitriol itself is colorless, and the gray will come later, but with the silver stain, the surface turns gray immediately, and the "fake graying" disappears on its own. Sold as 1kg, 5kg, and 15kg.

Recipe

• 1 kg of iron vitriol
• Dissolves in 20 L of hot water
• Covers approximately 40 square meters