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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 FileConclusions From This Study The within-chamber uniformity of degradation for the Atlas rotating drum speci - men mounting systems tested varied from ±3% to ±13% - depending on the type of material and exposure conditions.The uniform...

Download FileSunlight, Weathering & Light Stability TestingSunlight is a major cause of damage to a number of materials, including plastics, textiles, coatings, and other organic materials. The type of damage, such as loss of physical properties,...

Download FileWeathering is an important cause of damage to plastics, textiles, coatings, and other organic materials. Accelerated weathering testers are used to simulate this damage for research and development, quality control, certification, and co...

A Q-SUN® Xenon Test Chamber equipped with the back-spray option can spray the bottom (back) surface of specimens during a DARK+SPRAY step, in addition to the standard top (front) spray. This allows testing to those specifications that require back-sp...