Tree Wound Sealants: Why You Should Skip Them

No sealant—tar, paint, or spray—is needed or recommended after limb removal. Trees heal by compartmentalizing wounds internally ("walling off" decay). Sealants trap moisture, hinder this natural process, and can harbor pests and pathogens. A proper cut just outside the branch collar allows the tree to close the wound effectively on its own within a few years.