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SAMPLE - Vermont Natural Coatings, Exterior, Penetrating Water Proofer Q&A
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I have cedar railings on my deck. About 8 years ago (when my contractor was dying) he sent a workman to put a sealant on the railings. It looked great for about a month and then grew black mold. If I sand the railings lightly, will your penetrating water proofer / sealer do the job without growing another crop of black mold? Or do I need a fungicidal wash to start? View answer
Asked 6 ´years ago
