Linseed oil: metal acetylacetonate systems. II. Fungicidal studies on canvas supports

The effects of two organisms, Chaetomium globosum and Aureobasidium pullulans, on cotton and linen canvas supports, commonly used for paintings, coated with 16 metal acetylacetonates dispersed in three different media - linseed oil, egg yolk, and commercial polyacrylate (Acryloid B-72) in xylene - were observed. Surfaces were examined microscopically and visually for two weeks and recorded photographically. The order of observed resistance was: linseed oil U0 Acryloid B-72 U0 egg yolk; linen U0 cotton. The effect of the metal acetylacetonate depended on the organism. Copper consistently imparted the greatest resistance to fungal growth.