As your porcelain tub loses it's shine the seal or Glaze is being removed. This allows lead to leech into the bath water which is especially damaging to children that use bath time as play time! When children bathe they love usually stay in the tub for extended periods of time and have toys to occupy them. As any of us parents know those toys inevitably end up in the child's mouth! There are documented cases of children suffering from lead poisoning caused by lead leeching into the bath water. This can be fixed by professional refinishing! It literally takes a few hours. The tub is back in service the next day and the extra benefit is the bathtub will look great again and be much easier to keep clean!
This bathtub I Refinished yesterday was not in very bad condition. The picture here is after I refinished it and the main issue with this tub was the worn tub floor which gave the tub a ''dirty'' look even though it had been cleaned very well. This was allowing lead to leech into the bathwater so I etched the bathtub, applied 2 coats of fusion lock then finished with 5 - 7 coats of synthetic porcelain. This not only sealed the lead off but also made the bathtub look new again! Bathtub Refinishing | Rowlett