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Effects of Moisture, Location, and Angle on Automotive Paint System Appearance During Natural Weathering

From Atlas Material Testing Technology LLC
 

 
Researchers know moisture plays a key role in weathering of many materials and often place moisture in a set of three primary weathering variables with sunlight and temperature. Researchers use southern Florida as a weathering reference environment because of its relative humidity, rain, condensation, and the important effect moisture plays in weathering. Researchers also make great efforts to include moisture variable control in artificial weathering tests for both simulation and acceleration of natural outdoor weathering degradation. Moisture represents an important focus for weathering studies, exposure standards, service life prediction methodology, and weathering device design. Several recent studies also show the important effect of moisture on material degradation rates and characteristics of automotive coating systems. Because of these historic and recent perspectives of moisture's role in degradation of automotive coatings, a research goal was identified to perform a simple weathering experiment designed to help quantify the role of the moisture variable compared to other weathering variables on auto coating degradation.
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Topics of Interest
This paper investigates the effects of weathering factors on moisture absorption of coatings and presents results from several projects including real-time and accelerated weathering studies of... (Read More)
This presentation broadly overviews several key aspects of coatings weathering and durability. Recent empirical data is included to introduce some fundamental variables and environmental... (Read More)
One may consider the recent history of the weathering discipline (the past 100 years or so) as an evolution of weathering experiments. This evolution trends from simpler, single variable experiments... (Read More)
8.1 Weathering 8.1.1 General Comment is made for each property on the trends seen during accelerated weathering, rather than attempting a detailed analysis of each compound property by... (Read More)
Ageing of Rubber: Accelerated Weathering and Ozone Test Results Detailing the results of accelerated heat ageing for a series of times and temperatures, artificial weathering and exposure to ozone... (Read More)