posterart12
Joined: 08 Jul 2013 Posts: 5
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Posted: Mon Jul 08, 2013 3:41 pm Post subject: picture framing glass |
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The picture frame may contain a pane of picture framing glass or an acrylic glass substitute such as acrylite or plexiglas to protect the picture. In some instances where the art in the frame is dispensable or durable, no protection may be necessary. Glass is common over watercolors and other artwork on paper, but rare over oil paintings, except very valuable ones in some museums. Picture framing glass may be treated with anti-reflective coatings to make the glass virtually invisible under certain lighting conditions. When a picture frame is expected to be exposed to direct sunlight, or harsh lighting conditions such as fluorescent lights, UV filtering may be added to slow down the photocatalytic degradation of organic materials behind picture framing glass. _________________ art canvas prints |
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