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To determine how colors change during weathering, ten non-leaded polyurethane colors were exposed to QUV accelerated weathering, Chicago outdoor exposure and Florida outdoor exposure. Color change, percent gloss retention and Aesthetic Ratings were made every 1000 hours in QUV up to 8000 hours, yearly in Chicago exposure for four years and yearly in Florida exposure for three years.
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The evaluation of clear waterborne acrylic coatings as topcoats in field-applied protective coating systems will be described. Clear coatings were evaluated over both waterborne and solventborne systems. The results of the effects of waterborne systems on properties such as corrosion resistance, gloss, and accelerated weathering will be discussed.