Outlast Q8 Log Oil is an EPA registered wood preservative specifically designed to control decay causing organisms (and mold, termites, powder post beetles) in log homes – even pressure treated. It provides unsurpassed water repellency and sheer trans-oxide color with one coat coverage. Outlast Q8 Log Oil is a totally non-film forming exterior treatment that will never crack or peel. Unlike traditional surface coatings, Q8 penetrates deep into the log to provide guarantees protection and guaranteed no peeling or cracking.