YELLOWING AND BLEACHING OF PAINT FILMS
Henry W. Levison
ABSTRACT—Experiments are described, demonstrating that exposure to daylight will bleach out dark-induced yellowing from drying oils in paint films, and that the degree of darkening and its susceptibility to bleaching is not a function of the age of the paint film or previous darkening and bleaching cycles. Three different drying oils and also acrylic emulsion mediums were tested.
1. PREPARATION OF TEST SPECIMENS