Use a rag or soft sponge to scrub the porcelain and then rinse well with water.
Clean old stained porcelain tub.
Kerr suggests using a pumice scouring stick to scrub away stains noting that they also work well on stained porcelain toilets.
Pour warm water into a bucket and mix cup of baking soda and cup of ammonia while baking soda is slightly abrasive.
One example is shawspads.
If your tub has a tough stain you can break out some cleaning screens which are similar to lightweight sandpaper.
You can also use cleaning screens like lightweight sandpaper for your tub.
Sponge wipe the tub with a solution of warm water and one fourth cup each of baking soda and ammonia.
Soak a non abrasive sponge in the baking soda ammonia solution and scrub the surface of your porcelain bathtub or sink.
Let the cleaner sit for two to three hours to give it time to draw out the stains.
A dull or streaked tub might shine up to presentable status with a little elbow grease.
Dip the sponge in the solution scrub and repeat.
Wipe down your tub.
Use a sponge and soak it in the white.
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.
Cleaning a porcelain enamel tub 1.
Get an old towel shirt or rag and dampen it.
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 1 gallon 3 8 l of water and 2 tablespoons 30 ml of dishwashing.
You can soak the area with hydrogen peroxide for 5.
Rinse your bathtub thoroughly and dry with a soft cloth.
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.
Using this give the inside of the tub a really good wipe down.
Get yourself a nice large bucket 5 gallons and mix in it 2 gallons of water and cups of white vinegar.
Combine hot water with dishwashing soap.
Treat stains with hydrogen peroxide or baking soda and ammonia.