Crackle Size is an extremely effective and efficient crackle promoter. Crackle Size will crackle many products outside the Perfetto line of products such as many latex paints. Crackle Size should be applied first on a primed substraight, and then one of the Perfetto Crackle Plasters should be applied over the top. Crackle Size should be allowed to dry for at least four hours prior to placing crackle material on top and overnight is recommended in most situations. The Crackle Size may also be thinned with water and placed on more as a wash, which will provide smaller cracks.