Owing to the many kinds of cracked and peeled surfaces, as well as the innumerable causes from which they come, it is impossible to give definite directions for repainting under all of the varied conditions. Judgment must be exercised in studying the surface and treating the same according to its needs.
The following suggestions as to repainting a cracked or peeled surface will meet the most common of both found in the general run of painting.
The preparation of a surface before painting is one of the most important matters to be considered. Properly preparing the surface will often go a great way in assisting to make a successful job of painting over a very badly cracked or peeled surface.
To properly clean a surface, it should be scraped and carefully gone over with a wire brush. The kit should consist of a good scraper and two wire brushes, one stiff and coarse, the other fine and soft. On a surface where the cracks are small and fine, a soft brush will assist in cleaning the dirt from the cracks and leaving the surface in better condition than will a coarse brush. On a surface with large cracks or a peeled surface, a coarse, stiff brush will assist in forcing off the scales, also breaking the peeled edges that have begun to turn out and are sometimes very hard to break loose.