I recently finished a wine cabinet with 3 coats of polyurethane, and after it was all said and done, I noticed a mark on the top, in the finish.  It looks like it was a drip from my spray gun that has landed and spread out over an area about the size of an inch and a half.  it’s noticeable to the eye but you can’t feel it at all, it is totally smooth.

Is there any quick (or labour intensive!) fix that will hide this mark?

thanks,

Romer