Stupid question, but why would you want to remove it? We usually leave it on until the would heals and it pops off.
Wound sealant seem to have different use and followers. There are also those who doesn't believe in it (even masters). Dan Robinson for one thinks it just holds moisture in and encourage wood decay inside.
In my understanding...
The thick clay or caulk like sealants are used to cover the wound and supposedly encourage the callus to roll over faster (under the clay and caulk). They should pop off.
The thin sealants like wood glue really act as wood sealant (gets absorbed by wood leaving a thin film finish). It minimizes; wood drying, cracking, and water entry to prevent rot so the callus have something to roll over to.
I make mine to just prevent (sap flow) drying from the wound and hope for it to work only for a few hours until the tree "compartmentalize" the cut. For large cuts, I use wood glue on the wood just to stabilize or "harden" it since it will take time before the wound heals.
Hope this helps and if I am mistaken...please feel free to correct me.