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http://dx.doi.org/10.7473/EC.2013.48.2.167

A Study on Weatherability with Particle Size and Orientation of Aluminum in Pre-painted Basecoat for Automotive  

Lee, Jae Woo (School of Energy.Materials.Chemical Engineering, Korea University of Technology and Education)
Cho, Ur Ryong (School of Energy.Materials.Chemical Engineering, Korea University of Technology and Education)
Publication Information
Elastomers and Composites / v.48, no.2, 2013 , pp. 167-171 More about this Journal
Abstract
Weatherability was examined according to aluminum particle size and its orientation used in PCM(Paint Coated Metal). Substrate delamination was checked by different UV transmission rate with QUV$^{(R)}$ (Q-LAB) equipment that can make accelerated UV irradiation. Film was prepared using three different types of conflake aluminum pastes under a PCM coating process and clearcoat was sprayed. UV transmission test results showed low transmission rate when EKART #790 having the smallest particle size and horizontal orientation was used. From the gloss retention results, gloss retention was highest in EKART #790 and followed by #770, #750.
Keywords
aluminum; particle size; orientation; weatherability; gloss retention;
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