French painter and restorer Jacues Maroger, spent a good portion of his life finding the "lost secrets" of Old Masters. His book The Secret Mediums and Techniques of the Masters was published in English in 1948. The medium is as close to what the masters used as can be had. Paintings completed by many Baltimore, Maryland realist have much of the same paint quality of the 17th century masters.
SIX FORMULAS OF MAROGER
Note of Caution: These formulas are made from lead and are very toxic to make.
First Lead Medium (attributed to Antonello da Messina)
One part litharge (yellow lead oxide) or lead white, combined by cooking with three to four parts linseed.
Second Lead Medium (attributed to Leonardo da Vinci)
One part litharge or lead white, combined by cooking with three to four parts rawlinseed oil, and three to four parts water.
Third Lead Medium (attributed to the Venetian painters Giorgione, Titian and Tintoretto)
One or two parts litharge or lead white, combined by cooking with 20 parts raw linseed or walnut oil.
Fourth Lead Medium (attributed to Peter Paul Rubens)
This medium was allegedly based on the black oil of Giorgione with an addition of mastic resin, Venice turpentine and beeswax. One or two parts litharge or lead white, combines by cooking with 20 parts raw linseed. A little more that one spoonful of "black oil" combined with even one spoonful of mastic varnish resulted in the "jelly" medium thought to be Megilp (another name of Maroger mediums).
Fifth Lead Medium (attributed to the "Little Dutch Masters")
This medium was supposedly the same as the one used by Rubens, but did not include beeswax.
Sixth Lead Medium (attributed to Velázquez)
One part verdigris (derived from copper - this material is substituted for the lead-based metallic driers), combined by cooking with 20 parts raw linseed or walnut oil.
Already prepared medium can be found at:
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