Oil Paint
Oil paint is a painting medium consisting of pigments dispersed in a drying oil as the binder.... View more
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Darkening of Lead?
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Darkening of Lead?
I just read Lead combined with cadmiums or ultramarine could darken eventually?
This does matter to me as I’m working on great pieces. One currently I am using Black Oil which I really love, with a multitude of pigments including glazes of cadmiums and ultramarine as well as Lead white. I assume it should mostly be okay except based on environmental factors or similar as some of the artists I love have used these pigments together and I don’t think there was significant damage. I would like to know so I can be intentional when using lead. For example should I use lead in paintings without these pigments or simply know which environment it will be, thank you!
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Cadmium sulfide pigments darkened when used with lead white upon first introduction to art, due to free-sulfur impurities in early forms of the pigment. This is not the case today because cadmium pigments contain only trace amounts of free sulfur. This may also have been true of early forms of synthetic ultramarine when it was first introduced in 1820, but is not the case today.
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