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Weathering Of Industrial Coatings: Correlation Between Three Years Outdoor Florida Exposure And Four Accelerated Weathering Methods

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Implementation of classification and certification programs for durable industrial and infrastructure maintenance coating systems is hindered by a lack of test protocols to reliably accelerate the aging process and estimate service lifetime. This gap in the industry also hurts development efforts to
reformulate or add new color choices to existing product lines. The first problem can be addressed by performing long-term weathering testing at outdoor exposure sites in places like south Florida and Arizona, but the need to wait 5 or 10 years or longer to confirm a classification or certify a product makes such schemes difficult to implement and ultimately reduces their value.

Product Number: 51323-18869-SG
Author: Sean Fowler, Kurt Wood, David Duecker
Publication Date: 2023
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$20.00
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In a study organized by the former SSPC C.1.8 subcommittee on fluoropolymer coatings, thirteen different coatings systems (some fluoropolymer-based, some in other common chemistries) in specified
white, blue, red, and gray colors were exposed up to 8000 hours in three accelerated weathering chamber tests according to ASTM G154 and D7869, on outdoor sunlight concentrators according to ASTM G90, and under natural conditions in south Florida. The chamber testing was completed during 2019 and the results informed development of SSPC Paint 47, published at the end of 2020. Ongoing outdoor testing continues, and three year exposure data is available. This paper will provide correlation data between the outdoor Florida exposures and the four accelerated tests conducted for the SSPC study.


In a study organized by the former SSPC C.1.8 subcommittee on fluoropolymer coatings, thirteen different coatings systems (some fluoropolymer-based, some in other common chemistries) in specified
white, blue, red, and gray colors were exposed up to 8000 hours in three accelerated weathering chamber tests according to ASTM G154 and D7869, on outdoor sunlight concentrators according to ASTM G90, and under natural conditions in south Florida. The chamber testing was completed during 2019 and the results informed development of SSPC Paint 47, published at the end of 2020. Ongoing outdoor testing continues, and three year exposure data is available. This paper will provide correlation data between the outdoor Florida exposures and the four accelerated tests conducted for the SSPC study.


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(Testing) Importance and Correlation of Accelerated Weathering Versus 10 years of South Florida Exposure

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The Paint and Coatings industry uses accelerated testing to extrapolate performance in real world situations and ensure coating formulations will withstand the forces of nature and provide long-term durability. This paper will compare the performance data of the three most common accelerated exposure test methods: QUV-A (ASTM D 4587), Xenon Arc (ASTM D 6695), and EMMAQUA (ASTM D 4141) and correlate this data to the same systems exposed for 10 years in South Florida and in North Kansas City, Missouri.
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Product Number: 51323-18813-SG
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Product Number: 51323-18886-SG
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