You can soak the area with hydrogen peroxide for 5.
Clean old stained porcelain tub.
Materials required baking soda dry abrasive cleaner hydrogen peroxide white vinegar.
Dishwashing liquid works well as a regular cleaner for a porcelain bathtub as does a diy scum fighting remover of vinegar dish soap and cornstarch.
Get yourself a nice large bucket 5 gallons and mix in it 2 gallons of water and cups of white vinegar.
Kerr suggests using a pumice scouring stick to scrub away stains noting that they also work well on stained porcelain toilets.
Get an old towel shirt or rag and dampen it.
The reader s digest version website suggests spraying the stained sections of your porcelain tub with a commercial oven cleaner.
Wipe down your tub.
Treat stains with hydrogen peroxide or baking soda and ammonia.
Dip the sponge in the solution scrub and repeat.
Use a rag or soft sponge to scrub the porcelain and then rinse well with water.
Combine 1 gallon 3 8 l of water and 2 tablespoons 30 ml of dishwashing.
Using this give the inside of the tub a really good wipe down.
Use a sponge and soak it in the white.
Soak a non abrasive sponge in the baking soda ammonia solution and scrub the surface of your porcelain bathtub or sink.
One example is shawspads.
Reader s digest also noted that you can use oven cleaner but only on white porcelain tubs as it can cause other colors to fade.
Combine hot water with dishwashing soap.
Rinse your bathtub thoroughly and dry with a soft cloth.
Treat stubborn stains with oven cleaner.
If your tub has a tough stain you can break out some cleaning screens which are similar to lightweight sandpaper.
Sponge wipe the tub with a solution of warm water and one fourth cup each of baking soda and ammonia.
You can also use cleaning screens like lightweight sandpaper for your tub.
Cleaning a porcelain enamel tub 1.
For gentle weekly cleaning look for store bought cleansers that are marked safe for porcelain enamel or make your own by mixing a few tablespoons of dishwashing soap with about a gallon of hot water.