When some of you say that cut past is not really necessary I partially agree, there are many instances that I go without myself. While most cuts can be done with the absence of wound sealant, its application is still preferred due to the fact that it will help that same wound heal quicker and more aesthetically. If concerning large cuts or trunk chops, especially on softwood species like Maples I recommend to always use cut paste fore the above mentioned as well as for the obvious reason that large wounds leave the tree to transpire moisture, nasty scarring, leave a open door to pests and diseases, etc...