Of all the methods of lining and the adhesives available, not one is suitable for all paintings. The choice must be based on each painting's particular structural problems and on a knowledge of the effects of the method and material over a period of time. The advantage of wax-resin linings is that, when properly used, the adhesive penetrates and consolidates the structure. Furthermore, this process has been in use for a long time, and most paintings so treated have shown a good survival rate.