Tire question

[fiddlybits]

I have been helping a friend with his Model A and yesterday we were fixing the flat tires.
We were pleased to find that the wheels are clean of rust, both surface and inside the rim and that they run true. We decided to clean them and paint them shiny black and they are all set for the tires to go back on.

The question we have is: There are no "rubber bands" on any of the rims. Since the rims are clean and smooth are these needed?

Thanks
Scot