This is “The Finest Stuff” 100% Organic: Authentic Pine Tar also referred as Stockholm tar is a pure, natural wood preservative made in Sweden. Pine Tar has been used since ancient times for creating a water repellent vapor barrier on wood and rope and for its gentle antiseptic effect. Pine Tar is used for wood preservation on utility and fence poles, cottages, splint roofs, boats et cetera. Pine Tar is an excellent wood preservative and substitute for pressure treated wood. Works well for preserving wood used underground.