Maybe it's not a proper cast iron bath then - steel? It isn't a proper roll top so well done on the detective work
and to me.I've now finished the painting but did have to resort to using a grinder/prep wheel to remove the previous coating. This was on the advice of tubbyuk who were very helpful throughout the process. I'd sent them pics of what I thought was a sufficient sanding job.
I'm usually confident in getting a good paint finish but struggled a little bit with the curved ends of the bath 'floor' finding it difficult to avoid lines from the roller whilst continuing to work quickly.
Very pleased with outcome although time will tell once the bath has been in use.
