Stains in an enamel bath may be able to be soaked out. Bleach on a cloth applied to the stain can lessen the stain and may get rid of it. An abrasive cloth such as a "Magic Eraser" may do the trick as well.
Toothpaste!
Because one or more of the ingredients will react (badly) with the enamel.
Enamel.
Your teeth are full of enamel.
Shout removes stains from jam, grass stains, coffee stains, ink stains, blood stains, motor oil stains, etc.
Since an enamel bath tub may scratch, it's best to use gentle cleaning methods. To remove limescale and many types of other stains and deposits, soak the affected areas with vinegar, then wipe off with a sponge. Hydrogen peroxide will also help many kinds of stains.
Stainless steel is more resistant to stains,particularly rust stains,than white and enamel on the GE JP202.
Toothpaste!
Enamel bath.
How can I remove dye stain in the bath
Because one or more of the ingredients will react (badly) with the enamel.
Tea stains teeth with prolonged usage while sodas break down the enamel of the teeth.
For an enameled steel tub, use ZUD or Barkeeper's Friend according to the directions. It should clean up as good as new and get rid of any hard water stains.
Yes. Bleach, white vinegar and lemon juice are often suggested to remove such stains.
A mixture of bleach, bi carb soda and Coca Cola will remove anything. But for a tarnished bath - if it has gotten into the enamel it is sometimes better to buy new enamel paint and repaint the bath white.
Its a bacteria called Serratia marcescens
A marine enamel or an epoxy paint is your best bet. However I wouldn't expect any paint to last in a bath.