Performance Coatings Inc. Mill Creek Washington Review

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I built a large deck in May of 2013 with brand new 5/4″ cedar. After allowing the wood to dry for several days

I applied Penofin blue label finish to it according to the directions on the back of the can. It looked fine for the first couple of months

then I started to notice black vertical streaks on some of the vertical surfaces and a large amount of mildew and mold growth. It was as if this Penofin finish accelerated the mold and mildew growth! I had to let it go through the winter due to running out of dry weather. In May of 2014

I tried power washing a small spot

the streaks lightened slightly but did not come off. I could also tell that the power washing was raising the grain of the cedar

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By Ronald

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