Q: Can I use rubber back rugs on a hardwood floor?
A: I don’t think I would recommend that, but then, why would you? The rubber is, likely over time to stick to the floor and even “meld” into the finish.
Similar Q: Can you put an accent rug with a rubber backing on an oak wood floor or would that damage the floor?
A: I would be careful with rubber. The rubber can deteriorate and stick to the floor. Also, I don’t know what chemicals are in the rubber which might affect the floor finish, perhaps discoloring it. I think I would ask the manufacturer of the rug.