I have tried numerous products over the years on this particular trim on the Wife`s Toyota. I have used Dlux, 303, Solution Finish and every product Duragloss makes with no success. I could get it black but usually for only a few days. Frustrated I eventually gave up. While sitting around I decided to try Collinite 920 which I purchased for the RV. I was amazed with the difference using it by hand and a terry cloth before loading a Yellow pad on the DA. I covered everything with Collinite 476. We shall see on longevity but it has lasted longer than the previous attempts.
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Dave
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