TWP 1500 Series resists water absorption that causes warping, cracking and splitting. It also prevents freeze damage in colder climates. TWP 1500 is great for wood decks.
TWP 1500 Series is a low VOC preservative with special U.V. absorbing pigments. This prevents unsightly wood graying, darkening and fading. The selected mildewcides inhibit the growth of mold & mildew, which assist in preventing premature discoloration.
Product has a strong odor. But looks nice on the test boards. It was harder to apply because I had to brush extra. Did not look nearly as nice, or apply nearly as easily, as the TWP 100 series that we tested. 14 month weathering tests were also not nearly as good, with the 1500 series showing significant darkening, color loss and mildew growth, when compared to the 100 series.
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