壁画制作向导重点.doc

? The Wall 1998–Visitation School When starting a mural project a wall is often pre-selected by the sponsoring organization. Ideally, the artist will be consulted to help select an appropriate site for a mural. Artists also sometimes search independently for a location to create a self-sponsored project. The artist conceives of an idea, identifies a wall, secures permission, and paints the mural as a gift to the surrounding community. Another process that can work well is for an artist to have an inspiration about a possible project for a place and then to involve community members and organizations in sponsoring the mural.The Condition of the Wall You want a wall that is in good shape. If it is a masonry wall, this means that the brick and mortar is not crumbling, powdery, or too badly cracked or broken. It means that the wall does not have efflorescence—minerals that seep through the wall, leaving a build up of white salt-like stain. If the wall is only missing mortar in a few spots, tuckpointing can be handled by the artist or by a volunteer. A professional mason should tuck-point the wall if the job is extensive. This is for the benefit of the building and for the longevity of the mural. Before painting begins, a waiting period will be necessary after the completion of the tuck-pointing so that the mortar can cure. Consult your mason for the required waiting time. CPAG recommends waiting at least one week. The wall should not have any old layers of paint remaining, particularly if this paint is loosely attached. A thorough scrapping, wire brushing, and/or power washing will be necessary to clean the wall. If you powerwash, allow the wall to dry a couple of days before priming. A wall need not be perfect before a mural is applied. Minor cracks or uneven brick and concrete can be painted over. Standard procedures should include a washing of the wall to remove loose dirt and dust. This can be done with a large pail of water, brooms for scrubbing, and a mild