Stack Lead White Michael Harding Oil Colour Cold Pressed - Medium permanence and drying times are

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Stack Lead White Michael Harding Oil Colour Cold Pressed - Medium permanence and drying times areFor my stack Lead White process I take strips of lead and hand roll them into spirals and place them in small clay pots where they stay suspended above a small amount of vinegar. The pots then are buried beneath mounds of steaming, biologically active horse dung. The chemistry is simple: vapours of acetic acid from the vinegar first corrode the lead creating a coating of lead acetate, then carbonic acid from the warm horse dung converts the white

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