Pruning seal is not really ever a good idea unless needed to protect new large grafts, etc. It traps in too much bacteria, and interferes with natural callusing of the wound.
Several years ago a guy apparently fell asleep while driving on the highway near my place and drove off the highway and down the 15' embankment. Seemingly, when he awoke he put his foot on the gas instead of the break. He traveled across my neighbor's place for about 200', grazed a large redwood tree, bounced off a 15" diameter pole laying on the ground at my neighbor's property edge and thereby sheering his drive line, then he traveled another 500 feet and ran over one of my chestnut trees, a pollinator. His insurance company ponied up $1,500 for that tree! The guy was shook up and didn't talk English so the falling asleep is only a guess.