Bronze is an alloy of copper with other metals that modify its hardness, color, and ability to be cast into a art deco bronze detailed mold. when bronze is cast it is usually a gold color. after the casting and finishing is completed, the surface is often treated with chemicals and heat which patinates deco the metal, coloring it green, brown, black, or a combination of the colors. foundries usually apply waxes or other coatings to the surface of a patinated outdoor bronze bronze to protect it from pollutants. this wax may wear off in time. we recommend annual maintenance by a professional art conservator. the surface of the sculpture may be washed to remove pollutants and dirt, and waxed. if done annually, the rate of corrosion will be retarded (though not totally eliminated), and disfiguring rain streaks will be minimized. i collect twentieth-century furniture. how can i best preserve it? some twentieth-century furniture was created from non-traditional materials, such as foam, plastic, and cardboard.

one thing after another explores the relationship of printmaking to the proliferation of serial imagery in the contemporary period. classic serial print projects from pop art and minimalism are juxtaposed with works from 1980s and 1990s. artists deco included range from andy warhol, roy lichtenstein, ellsworth kelly, and brice bronze marden to rosemarie trockel, john armleder, art yukinori yanagi, and anish kapoor. pop and after juxtaposes major works of the 1960s by american and european artists, which focus on mass media and the iconography of consumer culture, deco with works bronze by younger creators of the 1980s and 1990s that extend and twist the stylistic and social concerns of pop art. artists included range from andy warhol, claes oldenburg, and roy lichtenstein to jeff koons, david hammons, and damien hirst.

what is the cause of dark spots that sometimes appear on the paper of drawings and paintings? reddish-brown spots are known as "foxing", caused by mold or the deterioration of the metallic impurities art left in the paper from the manufacturing process. other colors of spots may be one of many types of mold damage. mold spores are everywhere in the environment, and mold thrives on cellulosic deco materials, especially in conditions of high humidity (above 65% of relative humidity). keeping artworks out of high humidity areas like bathrooms bronze or exterior walls, can help reduce the development of such stains. if i have a work of art on paper that appears to not be flat, should i be concerned? paper is hygroscopic, reacting to changes in climate by expanding when it is humid and contracting when it is dry. a gentle undulation in the paper called "cockling" occurs art under these conditions, especially with larger works. this may impair the work aesthetically as well deco as cause mediums such as gouache bronze to crack or flake as it is unable to expand and contract as the paper itself does.