The good news is that you can remove rust from your bathroom quickly and easily with WD-40 Multi-Use Product. Yes, the same one you've probably used to lubricate the hinges on the bathroom door. Just spray a little on the rust stain, wait a few minutes and start scrubbing with a mild abrasive.
Provided you're only dealing with surface rust or a rust stain, you can simply spray some WD-40 directly onto the stain, leave for around ten minutes and wipe away with a cloth or old toothbrush. You may need to use something like an abrasive sponge if the rust is a little more stubborn.
Borax and Warm Water
You cannot ask for better natural and all-purpose cleaner than Borax. You can use it to clean various surfaces, like your porcelain sink. All you need to do is prepare a paste using the Borax and warm water. Then apply the paste over the stains and leave it for a few hours.
To remove light rust, leave parts in the solution for 1-3 hours. To remove heavy rust, leave parts in the rust removal solution overnight.
If you're not sure where to start with your stainless steel sink, try some WD-40 Multi Use Product. That's right, the same can you use for fixing squeaky doors can also clean a stainless steel sink.
THE FIX: Hydrogen peroxide
Apply it with a soft sponge to the offending stain. Let the paste dwell on the ceramic or porcelain surface for one or two hours. Scrub down the stain with a stiff-bristle brush.
INSTRUCTIONS: TO CLEAN TUBS, TOILET BOWLS, SINKS, PORCELAIN, CEMENT, STUCCO and BRICK: Mix equal amounts of CLR and warm water. Apply directly to calcium, lime or rust with brush, cloth or sponge. Rinse promptly with cold clean water. If stain does not disappear, use CLR full strength, wipe and rinse promptly.
Hydrogen peroxide, the active component of oxygen bleach, gives baking soda an added punch to clear any yellow stains. For antique or colored porcelain, hydrogen peroxide and oxygen bleach are the most effective household cleaners for tough stains.
The stains appear most often in homes located in hard-water areas, where the combination of minerals and iron bacteria in the water can cause rust particles to cling to the porcelain or enamel surfaces of bathroom fixtures.
Use on most bathroom surfaces including: porcelain, ceramic tile, shower doors, sinks, bathtubs, white grout and caulk, toilet bowls, and fiberglass. Will not remove rust. Do not use on vinyl, natural stones, mirrors, plastic laminates, wood, fabrics, painted, coated or sealed surfaces, colored grout or wall coverings.
Our cooktop cleaner easily restores glossy induction surfaces, and does double duty on other tough cleaning problems from sinks to cookware to countertops. Bar Keepers Friend even removes food buildup and knife marks from porcelain, ceramic, glass dishes, and serving ware.
WD-40 Specialist ® Rust Remover Soak
To remove light rust, leave parts in the solution for 1-3 hours. To remove heavy rust, leave parts in the rust removal solution overnight. Do not use on parts that have bluing, browning or protective oxide paints, as those protective coatings would be removed.
-WD-40, JB-80 and similar products are penetrating oils. They're lightweight petroleum products designed to wick into the threads of fasteners and provide lubrication. The don't necessarily "cut" rust, but can lubricate light- to moderately rusted nuts and bolts enough to ease their removal.
Cover Object in Vinegar
Submerge the rusted object in undiluted distilled white vinegar. If the object is large or has electrical components, liberally spray vinegar on the rusty area or place a cloth saturated with vinegar over the rusted area.
The brown stain is from a large amount of iron in your water. It is closely related to simple rust that you see on metal, which is iron oxide. Your water probably comes from groundwater that filtered through rocks containing iron-rich minerals on its way to the well.
Use Distilled White Vinegar
While food-grade distilled white vinegar can be used, cleaning vinegar with a higher acidity is better for tough rust stains. For weekly cleaning of sinks, tubs, and shower walls, spray the vinegar on the rust stains. Use a scrub brush to clean the area and then rinse well.
For cleaning and sanitizing, the CDC recommends a dilution of one cup of bleach to five gallons of water. Diluting bleach decreases the alkalinity and is safe for regular use on all types of porcelain and ceramic tile surfaces.
For white porcelain only, bleach can be used to remove stains; never use chlorine bleach in colored or vintage porcelain, as it can damage the finish. For both white and colored porcelain, liquid oxygen bleach (such as hydrogen peroxide) is a good alternative.
For colored porcelain or vintage porcelain, hydrogen peroxide is an effective stain remover. Line the sink with paper towels and saturate them with hydrogen peroxide. Leave the towels in place for at least 30 minutes. Then, remove the towels and rinse the sink.
The bathroom sink, especially a porcelain one, can tend to get quite nasty over time. You see a lot of discoloration around the drain and the overflow hole. Just apply the concentrate solution to both areas, let it sit for a few minutes, then scrub it with a cleaning toothbrush.
WD-40 helps you remove mold, rust, and rancid odors from your refrigerator.
Since it can be stored without freezing or overheating between -81.4 degrees and 120 degrees Fahrenheit, you can certainly store your WD40 in the refrigerator.