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online clip arts Look here 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 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 materials, especially in conditions of high humidity (above 65% of relative humidity). Keeping artworks out of high humidity areas like bathrooms 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 under these conditions, especially with larger works. This may impair the work aesthetically as well as cause mediums such as gouache to crack or flake as it is unable to expand and contract as the paper itself does. Who am I? I am an Estonian too, my name is Jüri Ülesoo. On the photo you see me with my dog Josper. I''m not really the artist but I like art. Some years ago I made some oil paintings but not now. I''ll try to be the curator for some Estonian artists on the Internet and here you see my first step - Navitrolla''s Gallery (thanks to Lile Elam and Art on the Net). The problem is that few Estonian artists have computers, good communication connection and time to learn and use it. I want to show their works to the whole world and the Internet is the best tool for it. Until the artist has his (her) own Internet connection and e:mail address I will be mediator for him. So, you can e:mail your opinions to me and I will give them to the artists. During the "day" I work as a Marketing Manager in the Estonian, Latvian and Lithuanian area for Finnish concern VALMET (for Valmet Automation - producer of process automation systems). I am a member of Lions Clubs International. Bronze is an alloy of copper with other metals that modify its hardness, color, and ability to be cast into a 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 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 to protect it from pollutants. This wax may wear off in time. We recommend annual maintenance by a professional 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. |
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