Accelerated weathering test simulates atmosphere with incidence of UVA and UVB light, dew, thermal shock, and temperature on specimens, predicting damages on nonmetallic materials (deterioration, aging, erosion, mechanicals, and physics of changes, hue and gloss) and reduce losses. The results are reliable, fast and the tests match with the technical standards of ASTM G 154, ASTM G 151, ASTM G 53, SAE J 2020, ISO 4892, and others.
UVA and UVB irradiation combined with differing weather act as the main cause of both physical and chemical damage, all in relation to the intensity and wavelength of light in the solar spectrum. According to standard SAE J2412, the CIE 85 of the solar spectrum collected in natural weather in the graph below, shows UV irradiation between 250 to 400 nm, visible light from 400 to 780 nm and infrared above 780 nm.
EQNA – UV chamber accelerates the degradation and aging of some materials, causing loss and color, mechanical resistance, blisters, disintegration and oxidation. EQNA-UV chamber helps the development of new materials and improvement of current materials and they are regularly used by industries as:
|· Automotive Industries
|·Varnish and Paints
|· Plastic and Rubber
The use of Accelerated Weathering Test Chambers in the automotive industry is highlighted by their ability to check and validate the use of materials and identify their maximum wear. This process is done by using lamps that send UV light from 300nm to 400nm.