Excuss me...may I cut in on this dance?
I don’t think anyone here is espousing that tree paint is going to wash away injury or mistreatment to a tree.
I do.
I’m not going to rule out a particular treatment because it was determined it did not work in the past.
Determined by flawless scientific research? I am. (Chief Scientist, US Dept of Forestry and a researcher for 50 years).
I have actually been thinking about doing some independent research on tree wound sealants myself. I have available a perfect test plot where a highway district butchered about fifty lindens. Multiple large ripping cuts, stubs, flush cuts, etc. The trees are over a hundred years old. My challenge is I do not have the time.
Oh, no, another amateur scientist. Only thing worse is having the manufacturer do it's own research (think cigarette/cancer research....or tree paint manufacturers)
The theory is if we can seal the wound so that oxygen cannot get to the cells, can we slow or stop decay. Yes, the trees have the ability to compartmentalize decay (CODIT), but do we have other options? Not all trees are good at compartmentalizing. Not all trees have the energy reserve to perform this function. I have actually been thinking how trees would respond to covering a wound or large pruning cut with Elmer’s Glue.
The fault in your thinking is oxygen is already in there and what's more so is infection. The glue will likely also inhibit closure.
People think they can control everything. Guy's wound he admires because of bark tracing and tree paint has got to offend the tree as it did this itself.....DESPITE what he did in the name of "tree care".
There are "dressings" with fungistatic qualities but who is gonna pay the dummy standing next to the tree with unlidded can and paint brush in hand all day and night......to repaint/replenish the dressing the moment it degrades and is no longer functional? He will likely fall asleep on duty at THE opportune moment and miss the impasse.
PS....Compartmentalizing decay is not CODIT.....CODIT is just a model.