Contacting the supplier may be helpful.
Removing a water stain from sheet metal.
Make sure not to scrub too hard to avoid scratching the metal especially if it is part of an appliance or some other item you would not want to ruin the look of.
Fill a small container with water and add a drop of mild dish soap into the water.
Repeat as needed until the water stains have been removed completely.
Then dry well with a towel.
Take a pot that you can dispose of and fill it halfway with water.
Mix vinegar and water and apply on the stain.
Mix the ammonia cleaner and the water into a bucket and use the solution to clean your galvanized steel.
When you pull the metal out of the pot you will see that peeling the paint off is effortless.
Step 2 put on your rubber gloves and begin to remove the paper towels from the vinegar and lay them on the surface of the stains on your anodized aluminum product.
If water is already in contact with the metal remove it.
Apply a light coat of paste wax or metal polish to the rinsed and dried surface to help protect the metallic finish.
Club soda club soda works well to remove water stains from metal surfaces and is a mild inexpensive ingredient that can be purchased from any grocery store.
Unfortuantely there is no easy way to remove the water.
Step 3 scrub the stains with superfine steel wool.
Use another lint free cloth to buff the galvanized steel to a high sheen.
The dish soap and water act as a lubricant to ensure a smoother sanding job.
Pour enough baking soda into the pot with to fully cover the bottom of the pot.
Fill a basin with white vinegar and soak several paper towels in it.
Place your hardware in the pot and allow it to simmer in the water for half an hour.
Check the condition of the metal every few hours to make sure no water has condensed on the surface.
If the stain is not a persistent one you might have managed to remove it in the previous step.
Soak the edge of a cloth or sponge in the club soda and wipe over the metal surface.
However there are times when the formation of wet storage stain cannot be prevented and must be removed.
Properly storing newly galvanized steel does both.
Steps should be taken to remove this water before it stains the aluminum.
Removing standing water from newly galvanized surfaces.
Wear gloves or the ammonia can cause irritation and chemical burns on exposed skin.
Do not use coarse steel wool as it will damage the aluminum surface.
Soak 1000 grit wet dry sandpaper in the solution for a minute.