Roger I bet it is as he says - acyrlic on polyurethane. I had one once and soda blasted it. Resiblock suggested a belt sander.
Sounds like it, Belt sander nice idea Resiblock!!!!!!!! not.
There is a chem that will remove Resiblock, the acyrlic can/might be washed off, in fact did one yesterday with no more then a turbo lance. A "Travelers Job" from what I can gather, why people buy into these door knocking services then get ripped off I have no idea.
Would want to see photos really.