How do I repair a sheer vinyl floor in an RV?

Hi Mike, here are are couple of items for you to check out, hope they help you

https://www.dummies.com/home-garden/flooring/how-to-fix-gouged-cut-or-scratched-sheet-vinyl/

https://www.youtube.com/watch?v=YYr_5R9rvwQ

Sheet vinyl is never as good once it has been gouged. Usually an RV is small enough square footage that you can get a bolt end piece of new vinyl extremely inexpensively. Check any flooring store and ask for remnants.

1. Cut a repair patch from a flooring remnant. Make it at least four inches wider and longer than the damaged section of flooring.

2. Set the patch over the damaged section, making sure the pattern is aligned.

3. Secure the patch to the floor with painter's tape.

4. Use trowel as a straightedge guide and cut through both the patch and the flooring below with a utility knife fitted with a brand-new blade.

5. Peel up the patch and then use a 6-in-1 painter's tool to pry up the damaged section.

6. Scrape the subfloor clean of all dirt, grit and old adhesive.

7. Spread resilient-flooring adhesive onto the subfloor with a notched trowel.

8. Press the patch into place, then roll it down with a hand roller.

9. Apply a ⅛-inch bead of liquid seam sealer to the joints around the perimeter of the patch. Make a V out of cardboard and put over but not touching the wet sealer.

10. Allow the repair to dry for 24 hours.

Here are some methods:

https://www.dummies.com/home-garden/flooring/how-to-fix-gouged-cut-or-scratched-sheet-vinyl/