Abstract
This chapter discusses the results of weathering exposure of polyvinyl fluoride (PVF). PVF has outstanding weathering properties. Pigmented Tedlar®, when properly laminated to a variety of substrates, imparts a long service life. DuPont Tedlar® PVF film has excellent resistance to sunlight degradation, stands up well to atmospheric pollutants, and is resistant to acid rain attack and mildew. Most airborne dirt does not adhere to Tedlar® film. It is found that unsupported transparent Tedlar retains at least 50% of its tensile strength after ten years of exposure in Florida at an angle of 45◦ facing south. Most colors exhibit no more than five NBS units (modified Adams color coordinates) of color change after twenty years of vertical, US outdoor exposure. Tedlar® SP films match or exceed the resistance of high-quality plastic surfacing materials to color fade and loss of gloss. Color retention of Tedlar® SP films is dependent upon the color being tested.
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