Fast fine art: 19th century painting tricks revealed

Fast fine art: 19th century painting tricks revealed: To paint quickly while creating exceptional texture and volume effects, J. M. W. Turner and other English artists of his generation relied on the development of innovative gels. All the rage in the 19th century -- and still in use today--these compounds alter the properties of the oil paints they are combined with. Now, researchers have finally learned the chemical secrets behind these mixtures. Lead -- in its acetate form -- is essential for the formation of the gels.

Peindre vite et bien:  les secrets des innovations du 19e siècle
(Communiqué de Presse, CNRS; Paris, 9 janvier 2017)
http://www2.cnrs.fr/presse/communique/4845.htm