Rbyrd33, good for you for posting that link for that particular type of neoprene roof cement. We had a flat roof covered with rubber roofing, and that was the only roof cement product I could find that was compatible with rubber roof material. I had great results patching and repairing the roof with this particular product. I think it would be just the ticket for putting in a gash in a tractor tire. As I was reading this thread I started thinking about it and was surprised when I clicked on the link in that post.
I have a loaded rear tire that got a ragged puncture from a stub of a metal T fence post. The tire shop put a couple of those puncture filling strips in the hole, patched it and put a tube in, and the repair is fine, but it still looks ragged on the outside. Now that you reminded me about that neoprene roof cement, I'm going to fill it in to make it look better and to keep dirt out of it.
I generally prefer Home Depot to Lowes, but I only found that product at Lowes and HD didn't have a similar product, which was unusual.