Sealing a crack in a birch bowl with pitch to make it water tight Sealing a crack in a birch bowl with pitch to make it water tight. Rock boiling next. #fulltanglifestyle Tim Smith Sep 23, 2016 Photos Previous: Carving a coal-burned spoon with a newly made crooked knife Next: Two weeks stuck in camp with no truck Featured In: Private Community & Online Learning Platform Western Colorado UniversityAcademic Partner Maine Wilderness Guides Organization Quality Endorsement Award Life Member – Maine Professional Guides Association Life Member – Maine Wilderness Guides Organization