About 2 years ago, I got a the hair-brained idea to line the tub floor with "Herculiner".

What a mistake. The only time I was happy with it was for the first 3 days. I soon realized that the rubber chunks were much too rough for what I had in mind. It always trapped dirt and dust. Not very easy to clean either unless you used a pressure washer. It gets pretty hot in the summer months. Oh, and try kneeling on that stuff , nasty on the knees. IMO, it is a good product, but not for this application.
Anyway, I researched ways of removing the liner, nothing looked very promising. I bought a gallon of paint stripper yesterday and poured a little on the liner in a small test area. Today it was bubbled up pretty good. My hopes were high.

After using the whole gallon, here is where I am with it. Looks like I'm going to need a few more gallons.