Stop in for a cup of coffee

WV64Signet said
There's some sort of hard top coat over the undercoating. I think that's the issue...

Going to try heat on the rear and see what happens. Replenished my propane bottle supply for the torch

1500 watt heat gun has been working for me, just need to be sure to hit the area for a good 10 seconds first then scrape. Slow but it works.