Last Edited: 9/15/23
Mr. Handyman explains how to remove rust stains from sinks and tubs effectively.
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Rust stains are unsightly and can make an otherwise clean sink or tub appear dirty and neglected. If you've tried in the past to remove these stains and had no luck, with our two-tiered approach, rust stains can become a thing of the past. Read on for tips on how to get rust out of a sink using a variety of do-it-yourself and commercial cleaners.
How to Remove Rust Stains
Your success at removing rust stains will depend on factors such as the material your surface is made from (acrylic, porcelain, or enamel) and how long the rust stain has been there. In cases of chronic staining, the color may have permanently etched itself into the porcelain, making it impossible to remove.
Before attempting any of the methods listed below, be sure to wear personal protection, including eye and respiratory protection, gloves, and a long sleeve shirt. Test the method in an inconspicuous sink, tub, or toilet area to prevent damage. If you are uncomfortable with this, contact a professional service for assistance.
When removing rust stains in a toilet bowl, flush the toilet and turn off the water to prevent refilling. An empty toilet bowl makes cleaning the rust stain easier and prevents the dilution of your cleaning solution. Use these tips to remove a rust stain from your sink or tub:
Abrasive Scouring Pads
For light stains, scrub the rust with the rough side of a sponge or scouring pad that has been slightly dampened. If the scrubbing alone doesn't remove the rust stain from the sink, add one of the cleaning solutions below.
Pumice Stones
A pumice stone removes rust stains from porcelain, although it is not recommended for fiberglass. Wet the stone and scrub the stain. The dampened stone will create a paste that lifts and removes the rust stain. Once the stain disappears, rinse the area with clean water.
Baking Soda
Make a thick paste of baking soda and water and rub it into the rust stain. Leave the mixture to sit overnight, and then scrub the stain with a toothbrush or microfiber cloth. Rinse the sink with clean water. If you still need more firepower, distilled white vinegar will help.
Baking Soda and Vinegar
Baking soda and vinegar are a powerful rust stain cleaner combo that is safe on many surfaces, but please remember to test in an inconspicuous area first. Mix a ¼ cup of baking soda with enough vinegar to create a thick paste and scrub the stain. Leave the paste to dry for an hour, then rinse the residue with clean water.
Lemon and Salt
Use bottled or fresh lemon juice, add enough salt to form a wet paste, and apply it to the affected area(s). While this solution is ideally suited for flat surfaces, it can also work in the toilet bowl, although the application may be tricky. Let the mixture sit for several hours before scrubbing the stain, then rinse with clean water.
Hydrogen Peroxide and Cream of Tartar
Hydrogen peroxide is a safe, natural stain remover, and when mixed with tartar, it works well for rust stains. Mix two parts cream of tartar with one part hydrogen peroxide to create a paste. Rub the paste into the stain and let the solution work for about two hours. Use a damp scrubber to scrub the stain, then rinse the sink with water.
Oxalic Acid
Oxalic acid removes rust and other mineral stains from many surfaces, including sinks and tubs. Mix 1 cup of borax and 1/2 cup of lemon juice in a bowl and apply the paste to the stain. Allow the mixture to almost dry, then scrub the paste into the stain. Rinse the sink with water.
Commercial Rust Stain Removers
Several cleaning products on the market are formulated to remove stains, including rust. Avoid products that contain bleach, as those may only exacerbate the problem.
The above methods and stain cleaning solutions will remove rust from a sink or tub, but you can save time and effort by preventing more rust stains.
What Causes Rust Stains?
Rust stains can be challenging to remove and may become permanent over time. Even when you know how to remove rust in a sink, if you don't fix the cause, you'll continue to have rust problems. Possible causes of rust stains in a sink or tub include:
Plumbing System
A rusty or deteriorated water heater, fixtures, or pipes can cause rust particles in your water supply. In addition to the damage to your home, this is a health concern that should be addressed as quickly as possible by a professional, licensed plumber. A water softener or filter is recommended if an abundance of iron deposits is the problem.
Water Supply
If the water entering your home has a high iron content, the water may look and taste normal—but rust stains may appear in areas where there is often standing water, such as the toilet bowl. One option is to have your water tested or contact a professional, licensed plumber. A water softener or filter is recommended if an abundance of iron deposits is the problem.
Tips to Prevent Rust Stains
Without taking corrective action, there's no getting around rusty pipes and hard water. Besides replacing pipes and adding water filtration, you can take a few measures to prevent rust stains:
- Dry the sink or bathtub after each use.
- Avoid having shaving cream, hair spray, and other metal containers on the sink or tub.
- Replace or repair the hardware if you have a slow leak from your sink or tub faucet.
- Check the inside of your toilet tank and upgrade to non-corrosive components if you find rusted and corroded metal parts.
Time for a Bathroom Makeover?
Now that you know how to remove rust in your sink and tub, you may have noticed other issues with your bathroom. When it's time for bathroom repairs or a complete overhaul, Mr. Handyman’s service professionals are pros at home repair, maintenance, and improvement projects.
No matter what your home needs, we have a professional handyman ready to roll up those sleeves and get to work. We back all of our services with the Neighborly Done Right Promise® and make it quick and easy to request service. Contact your local Mr. Handyman to find a trusted partner for all your home improvement projects.
This article is intended for general guidance only and is not applicable to every situation. You are responsible for determining the proper course of action for your property and situation. Mr. Handyman is not responsible for any damages that occur as a result of advice and/or guidance derived from its blog content. Some Mr. Handyman services vary by location. Contact your local Mr. Handyman franchise for more information.
FAQs About Removing Rust From a Sink or Tub
For over 25 years, Mr. Handyman professionals have been helping homeowners and businesses repair, maintain, and enhance their space. We are a one-stop solution for everything on your to-do list. This includes answering your questions about home repairs, maintenance, and improvements. Here are answers to some of your most frequently asked questions on removing rust from a sink or tub.
What causes rust stains in sinks and tubs?
Rust stains often come from high iron levels in your water or corroded plumbing. Even if you know how to remove rust from sink or tub surfaces, stains will return if the root cause isn’t fixed.
Common sources of rust in the kitchen or bathroom include:
- Rusty pipes or water heaters: Rusted pipes can release iron particles into your water.
- High iron content in the water supply: Stains form in areas where high-iron content water tends to sit, like sinks or tubs.
If you’re dealing with constant rust stains, consider having a licensed plumber inspect your system and installing a water softener or filter to help prevent future stains.
How to remove rust from a sink without damaging the surface?
To safely remove rust from sink surfaces:
- Use a non-abrasive sponge.
- Apply a cleaner with oxalic acid (like Bar Keepers’ Friend).
- Rinse thoroughly and dry to prevent recurrence.
What not to do: Avoid steel wool or harsh scrubbers! They can scratch the surface, which can lead to worse staining.
How to remove rust from a tub safely?
To safely remove rust from a bathtub:
- Sprinkle baking soda over the stain.
- Add a few drops of white vinegar.
- Let it bubble for 5–10 minutes.
- Scrub gently and rinse.
Pro tip: For tougher stains, use a commercial rust remover made for bathtubs. Always test in a small area first!
How to remove rust stains from a porcelain sink?
To remove rust stains from porcelain, use a stain-specific cleaner formulated for delicate surfaces, such as Whink or CLR. Apply as directed, scrub lightly, and rinse completely. For deep-set stains, multiple applications may be needed.
To remove rust from porcelain sink finishes:
- Use a stain cleaner or use a combination of baking soda and hydrogen peroxide.
- Gently scrub with a soft cloth or non-scratch sponge.
- Rinse thoroughly and wipe dry.
What not to do: Avoid abrasive powders or anything that can chip the porcelain coating.
Can I use lemon juice or vinegar to remove rust from a sink or tub?
Yes—natural acids like lemon juice or vinegar can help dissolve light rust. Combine with baking soda for a bubbling lift. However, while effective on minor spots, this method may not work as well on older or deeper rust stains.
Will bleach remove rust stains from porcelain?
No—in fact, bleach can make rust stains worse by causing a chemical reaction that deepens the stain. If you're wondering how to remove rust from a porcelain sink or tub, stick with oxalic acid-based products or safe DIY alternatives like baking soda and vinegar.
Can I remove rust from an old cast iron tub?
Yes, but proceed carefully and only use a rust remover rated for cast iron. Avoid aggressive scrubbing, and consider refinishing if the stains are severe. For extensive damage, you may need a professional to assist with safe cast iron restoration.
How to prevent rust stains in sinks and tubs?
Preventing rust is about more than cleaning—it's about staying ahead of corrosion before it becomes a problem. Even if you’ve mastered how to remove rust from tubs and sinks, keeping stains away for good means addressing the root cause.
Simple ways to prevent rust stains include:
- Dry your sink or tub after each use. Standing water speeds up rust.
- Avoid metal cans. Shaving cream or hairspray cans may leave behind rust rings.
- Fix slow leaks. Leaks create constant moisture that facilitates rust buildup.
- Inspect toilet tanks. Replace corroded parts with non-metal alternatives.
- Install a water softener or filter. A water filter can reduce the high iron content.
Rust is natural, so it will occur eventually without active maintenance. Stay proactive, and you’ll keep your porcelain fixtures clean and clear for the long haul.
Should I try to remove deep rust stains myself?
If your sink or tub has light rust stains, you can probably remove them without much hassle. But if you’re dealing with deep, recurring rust or stained porcelain, a local professional can ensure the stain is removed without harming the finish.
Explore more home maintenance tips in our home improvement blog!
