Originally Posted by Fixer-Upper
What do you mean by the "carrier" in the old finish? The finish on the top of the wood paneling?
In relation to finishes the term carrier refers to the solvent or base that carrys the finish, or solid materials.
A finish is basically a blend of solid materials suspended in liquid form usually by some type of solvent. when exposed to an open environment, open can, or rolled on wall, the solvents escape the solution and leave the solids behind. hence the varying toxic stench when you paint or finish, hope this helps.
if you desire more info on this, I'll go into detail or explain further. Their is a great deal of science involved in finishing, that's why most people end up with poor refinshes and don't know why.