— Method number 1. First you need to stock up on special enamel, after which, with a brush, cover the whole bath with it. It is better to apply it to the surface from the top of the sides to the bottom. This method allows you to really minimize the smudges. Of course you can use a roller, but only in this case the material consumption will increase significantly. No need to try to fill the bath with enamel the first time, it is better to do it in stages, in several layers. At the end of work, in only 3 days, your cast -iron bath will be completely ready for operation.