It’s not a sealer. It’s a hormone that is part of the healing response. E.g. the plant is healing whether you add the hormone or not. Additional hormones (auxins, IBA, IAA) has been shown, experimentally, as a key component in that process. It could possibly improve the healing response. I don’t have access to explicit experiments that show this but it is entirely plausible just like other manipulations using hormones.
I don’t see anything wrong with trying this as long as the concentrations are sufficiently low … else it can have the opposite effect. Would be nice to do an experiment across a purposeful injury against a control.
You can get away with insults in the tank but that will not last long outside of there.