I am remodeling a bathroom and putting in an antique copper-lined tub. The tub lining has a significant line of lead solder on it. I would not be so worried about it, but this will be the tub for my infant daughter and she is not old enough to understand the need to wash her hands after touching the lead. Is there a way to seal the solder and copper, maybe using epoxy or some other sealant? I really would like to avoid having to pay to re-line the tub interior if possible.