Semi-transparent Stain ~ Aspen log on: Log on has 99% UV protection, the highest rating of any clear finish. Sign in to the best Mold Protection you have found anywhere. Log on is a semi-transparent wood finish that penetrates deeper than any other transparent stain. It really is Nutre and protects the wood. You will be able to use in high altitude environments where sun, wind, rain, snow, and are harder than wood log. Log on is perfect for homes and log wood frame properties that experience Fierce weather conditions. From the appalachians and the Ozarks, to Whistler and the Rockies, from the Tetons to the Wasatch, and to the record of the Blue Ridge Mountains and beyond, in. ~ ~ ~ ~ ~ penofin is not a high solid, common lay-on-the-surface Type of log and wood frame finish. No. Penetrating penofin is so amazing; The fibers are nourished and stabilizes deep within the wood. Penefin log in is available in three-tone transparent wooden frame that will enhance any log or structure.