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Iron Sulfate 65200

By Waxine inc. in Chemicals and Mordants

Iron Sulfate is a mordant also known as green vitriol. Sold in water-soluble crystal form, it is used to give an aged look to resinous wood and to accentuate the color of wood surfaces before using plant-based stain. Iron sulfate reacts with tannins and targets the tender veins present in wood.

On wood with high tannin levels such as oak, walnut, mahogany and cherry, iron sulfate will give results ranging from silver gray to steel blue. Other wood such as maple, beech, birch or cedar with lower tannin levels will take on a more subdued coloration.


Wear gloves and protective glasses.
Dissolve 60 to 80g of crystals for each litre of cold water used. The water will turn slightly green.
Wood surface must be clean and dry. Apply with a brush, rag or sponge. If using plant-based stain, apply iron sulfate first. If not using stain, proceed to finishing.

Apply buffing wax, oil or varnish to protect the surface.

Size: 250 or 500 grams

Corrosive product – use with caution. Work in a well ventilated space and wear protective gloves, glasses and face mask. Keep out of reach of children. Toxic if inhaled, ingested and by coming into contact with skin. In case of contact with skin, rinse immediately with water.

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