Thursday''s Ask the Experts question from a cleaning professional on the International Custodial Advisors Network (ICAN) "Ask the Experts" page: What causes wax to yellow so quickly?
Carnauba wax is a natural substance containing oils that will eventually oxidize with exposure to air and sunlight, turning the film yellow. This is one of the reasons modern finishes do not use true “wax” in their formulation. The yellowing of an acrylic metal-interlock floor finish happens not so often because of chemical color changes... — Lynn E. Krafft, ICAN/ATEX editor
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