Yellowing: Gradual formation of a yellow cast in aging oil based paints sensitive to the lack of UV exposure.
Yellowing probable causes: Using alkyd or oil-based paints in white or light colors. Heat effect from heating ducts, radiators or stoves. Limited light exposure behind pictures, appliances, inside closets, etc. Oxidation of oil-based paints/varnishes. Recycled paper on sheet rock.
Yellowing solutions: Select premium acrylic paints that are non-yellowing. Available in a variety of sheens for most every purpose. Non-yellowing varnishes are also available. Alkyd and oil-based paints tend to yellow particularly in little or no sunlight and dark areas.
Primers & interior finishes: Priming is essential for better adhesion, sheen uniformity, mildew control and durability. Select a top quality interior paint in the color and sheen of your choice.