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 Henderson (artist) Jack Henderson (artist) Jack Henderson (born 2004) is a Scottish artist, known for raising £64,000+ by selling his artwork as a child, which he donated to the Edinburgh-based Sick Kids Friends Foundation. Henderson wanted to raise money for the Sick Kids Hospital in Edinburgh where his youngest brother Noah regularly attended with bronchiolitis. His idea was to draw 'anything' in exchange for donations to the Sick Kids Friends Foundation and he aimed to raise £100. After his idea (which he titled "Jack Draws Anything") and website went viral he gained a lot of attention and picture requests. His fundraising total