X-100 Natural Seal Finishes are deep penetrating water repellents containing natural oxide pigments and U.V. inhibitors that protect cedar, redwood, cypress, fir, pine siding, dimensional lumber, T111 and logs from the ravages of nature. American Building Restoration Products put into practice formulations studied and established by nationally recognized forest industry organizations. X-100 Natural Seal finishes are available in transparent, semi-transparent and semi-solid formulas for the protection and beautification of your exterior and interior wood surfaces. X-100 Natural Seal is also available in a Waterborne Deck Stain formula for application to damp or dry surfaces.