I am trying to refinish/repair a dining room table that had something spilled on it and ruined the finish (I have no idea what was spilled on it). I am trying to determine the type of finish currently on the table. The attached pictures are of the table and spill area. In an inconspicuous area of the finish I first rubbed some DNA and it really didn't do anything except maybe dull the area momentarily from my rubbing. I then started rubbing with a little lacquer thinner and the finish immediately began to dissolve and almost blister. That area became sticky and I had rub it out with the DNA and then water to get the area neutralized. Thoughts on the finish? Is this PreCat lacquer? I want to take down the finish on the whole top and refinish with a like product or finish.
Note: this is a veneered top.