RE: Sealing Monokote edges
MonoKote Solvent only acts on the adhesive layer of the covering, which also happens to be the color layer. Yes, it softens the adhesive and "activates" it. As Matt says, too much and you won't be happy.
The stuff also makes a great MonoKote cleaner. After completing a MonoKote job, I put a little on a paper towel and wipe down the covering. Takes off all those left over Sharpie guide marks and any marks left from your iron getting too hot and bleeding the covering color. At the same time, it helps to seal the seam edges.
Dave