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Download FileThere are three general categories of filters that can be used in Q-SUN® xenon arc test chambers. The choice of filter depends upon the material tested and its end-use application. Within each general category, there may be several diffe...

Download FileAbstract For decades, automotive coatings have experienced degradation in the form of etching on coatings exposed to acid rain. As a result, procedures were developed to simulate and accelerate this type of degradation. These proced...

Download FileAbstractMany attempts have been made in the past to develop a test that can predict the acid etch resistance of automotive clearcoats. Methods such as the Gradient Bar and Acid Spot are just two examples of the numerous laboratory method...

Download FileHow two different hardware configurations can be used to simulate the same test environment AbstractIn recent years, almost all major weathering test procedures have been modified from hardware-based to performance-based. These newe...

Download FileYour exposure application determines which type of UV lamps should be used. The QUV accelerated weathering tester's lamps typically emit mainly ultraviolet (UV) light rather than visible or infrared (IR) light. All lamps are electrically...