Canvas white pigment and calcium carbonate is rather brittle and susceptible to cracking. As lead-based paint is poisonous, care has to be taken in using it. Various alternative and more flexible canvas primers are commercially available, the most popular being a synthetic latex paint composed of titanium dioxide and calcium carbonate, bound with a thermo-plastic emulsion. Many artists have painted onto unprimed canvas, such as Jackson Pollock, Kenneth Noland, Francis Bacon, Helen Frankenthaler, Dan Christensen, Larry Zox, Ronnie Landfield, Color Field painters, Lyrical Abstractionists and others. Staining acrylic paint into the fabric of cotton duck canvas was more benign and less
Jack Coughlin (artist) Jack Coughlin (artist) Jack Coughlin (born 1932, Connecticut, USA) is an artist of Irish-American heritage who is best known for his portraits of literary figures and musicians. As a figurative artist and member of the National Academy of Design, Coughlin’s work is in many prominent collections including the Metropolitan Museum and the Museum of Modern Art in New York, the National Collection of Fine Arts in Washington D.C., the Norfolk Museum of Arts and Sciences in Virginia, the Worcester Art Museum in Massachusetts, the University of Colorado, the Philadelphia Free Public Library, Staedelsches Kunstinstitut, Frankfort, Germany, and the New University