The Abydos reliefs, from the small temple of Rameses I, have had a difficult history since they were unearthed in 1910. Due to a high soluble salt concentration the reliefs have exhibited severe flaking and powdering over the following decades. Wax and oil treatments failed to prevent further deterioration and darkened the light-colored limestone considerably. The present study discusses the problem of cleaning and consolidating reliefs in such delicate condition and the approach taken of consolidating first with silane before removing the wax of previous treatments. See also AATA 21-898.