Please help with odor cover
We bought an old home built in 1863. We want to save the base moldings we just removed to do some demolition because they would be too expensive to replace. I doubt anyone still makes them. The problem is that the prior owner was a true crazy cat lady who let the little felines spray wherever they wanted. One molding still smells of cat urine after four coats of Kilz stain blocker.
Is there something out there that will seal this? Are we using the wrong Kilz? Thanks in advance to all who answer.