How to Remove Rust Stains From Your Bathtub

A nice hot soak can soothe what ails you, but unsightly rust stains may have you avoiding your bathtub and opting for a shower instead. While fresh stains are much easier to tackle, there are a few techniques and products you can use to rid of that gross rust lurking in your tub. Learn how to remove rust stains from the bathtub and prevent them from returning with these expert tips.

What Causes Rust Stains in a Bathtub?

Elizabeth Shields, cleaning expert and operations manager of Super Cleaning Service in Louisville, says that if water tends to pool in certain areas of the tub or around the drain, it can increase the chance of rust forming, especially if the water is high in iron.

“When iron-rich water comes into contact with the surface of your tub and gets exposed to air, it oxidizes and leaves behind those reddish-brown stains. This is especially common if you’re on well water or in areas with older water systems,” she explains.

She continues, “It can also seep into cracks, chips, or damaged spots, making it easier for rust to form. Metal fixtures or leaving objects like razors sitting on the tub’s edge is a big mistake, too. Those can rust and transfer onto the tub.”

Things to Consider Before You Begin

Don’t start scrubbing away just yet. Just like cleaning your fridge, countertops, and other areas of your home, there are some things you need to consider first. Alicia Sokolowski, cleaning expert, president, and co-CEO of AspenClean, says that these are the main things you need to know and consider before you try to remove rust stains from the bathtub:

• Severity of the stain: It’s important to evaluate how widespread or deep the rust stains are, as this will help you determine whether you need a stronger cleaning solution or multiple different treatments.
• Tub material: Different materials require different cleaning approaches. Some harsh cleaners can damage certain materials, so be sure to check the tub’s surface before proceeding. You can also call the manufacturer if you are unsure what type of material your bathtub is made of or want to ensure you don’t use a product that may damage it. 
• Type of cleaning product: Try to opt for effective, non-toxic, eco-friendly products. Make sure to check the ingredients of your cleaner to ensure that it will not harm your tub or your health.
• Ventilation: Ensure your bathroom is well-ventilated to avoid inhaling fumes from cleaning products.
• Wear protective gear: Anytime you work with chemicals or even natural cleaning products, you should wear protective gear such as goggles, eyewear, gloves, and a mask to prevent you from inhaling dangerous fumes. Some products may cause skin irritations, and the last thing you want is for something to splash in your eyes as you scrub your bathtub clean. Check manufacturer’s labels to ensure you protect yourself accordingly. 

How Often Should You Clean Your Bathtub 

Shields and Sokolowski both say you should clean your tub at least once a week. “For me, weekly is a solid plan. It keeps things under control, like soap scum, grime, and even rust stains if your tub’s prone to them,” says Shields.

She continues, “And if you do have rust issues, catching them early makes it way easier to manage. But of course, wiping down after each use should be a habit. Rust can spread and set in fast where water tends to pool.”

How to Remove Rust Stains From the Bathtub with White Vinegar and Baking Soda

Sokolowski encourages using natural methods and eco-friendly products, which is why this simple combination is one of her go-to methods. The great part is that you might already have everything you need for the task in your cabinets. Grab the following supplies and follow these simple steps to easily remove rust stains from your tub.

What You’ll Need

• White Vinegar
• Baking Soda
• Non-Abrasive Pad or Sponge
• Microfiber Cloth
• Gloves
• Safety Goggles

Step 1: Mix the Paste

Start by making a paste of three parts baking soda to one part white vinegar. You want it to be a thicker consistency so it will stay when you apply it to the rust stain. 

Step 2: Apply the Paste to Rust Stains

Once your paste is ready, put it directly onto the rust stains, focusing on severely affected areas, and let it sit for about 15/30 minutes. This will allow the acid in the mix to work and break down the rust. 

Step 3: Gently Scrub with a Sponge

After you allow the paste to sit, gently scrub the areas with a non-abrasive pad or sponge. 

Step 4: Rinse Rust Away and Wipe Dry

Finish up by rinsing the tub thoroughly with water. Make sure to wash off all of the paste, then wipe the tub dry with a microfiber cloth or soft towel.

How to Remove Rust Stains with Lemon Juice and Salt

Another natural method for tackling rust stains in the tub that both experts recommend is combining lemon juice and salt. You only need a few items and can complete this task in no time at all.

What You’ll Need:

• Lemon Juice
• Salt
• Sponge
• Microfiber Cloth or Soft Towel
• Gloves
• Safety Goggles

Step 1: Directly Apply Lemon Juice and Salt to Stains

Lemon contains citric acid which can help break down rust and make it easier to remove. “Squeeze the lemon juice over the rust stains and sprinkle salt on top of it. Salt will act as a mild abrasive,” Sokolowski advises. 

Step 2: Leave It To Soak Out Stains

Sokolwski says that you should let it all sit for about 10 to 15 minutes. This will allow enough time for the acid from the lemon juice to break down the rust.

Step 3: Scrub Gently

Once the lemon juice and salt have set in, scrub the area gently with a sponge or microfiber cloth. Remember that salt is a bit abrasive, so don’t scrub too hard.

Step 4: Rinse Thoroughly and Dry 

Finally, rinse the bathtub thoroughly with water. Make sure all the juice and salt are washed off the surface. Then, dry the area to prevent future rusting.

How to Remove Rust Stains with Bar Keepers Friend

Shields says that one easy option is using a product called Bar Keepers Friend. Using a rust remover product can get tough stains out of your tub’s surface. Here is what you will need and the basic steps to get the job done right:

What You’ll Need

• Bar Keepers Friend
• Fine Steel Wool
• Microfiber Cloth or Soft Drying Towel
• Gloves
• Safety Goggles

Step 1: Wet the Tub and Apply the Cleaner

Shields says that you will need to wet the tub, then sprinkle a generous layer of the cleaner over the rust stains. “Let it sit for anywhere from a few minutes to an hour, depending on how stubborn the rust is,” she instructs.

Step 2: Scrub Stains with Fine Steel Wool

“Once [the cleaner has] had time to work its magic, add a little muscle to the mix by gently scrubbing it with a fine steel wool,” Shields says. Remember to use fine steel wool because it is not as abrasive as other types.

Step 3: Rinse Rust Away and Dry Thoroughly

After a good scrubbing, rinse off the cleaner and the entire tub. Don’t forget to dry with a towel to prevent water from pooling in the bathtub. Sitting water makes the tub prone to rust.

More Methods for Removing Rust Stains From the Bathtub

There are a few other products the experts recommend for removing rust stains. Here are their top picks along with basic instructions on how to use them. 

Whink Rust and Stain Remover

“There is a product called Whink Rust and Stain Remover. This stuff comes in a goldish-brown bottle and works like a charm because of the acid-based formula,” says Shields.

She continues, “You simply spray it on, and the rust just slides down the drain. A quick wipe with a sponge afterward, and you’re good to go.” Don’t forget to dry your tub afterwards.

Lysol Lime & Rust Clinging Gel

Another go-to for rust and lime buildup that Shields uses is Lysol Lime & Rust Clinging Gel. “Make sure your tub is dry before applying the gel, as it works best on dry surfaces. The gel clings to the rust, breaking it down so you can scrub it off more easily,” she says.

“Just a small amount goes a long way, but be sure to wear gloves, eye protection, and maybe even a mask, as the smell can be pretty strong.”

Eco-Friendly Rust Removers

There are also more eco-friendly products to choose from, such as the AspenClean Bathroom Cleaning Kit. “Start by sprinkling SuperScrub directly onto the rusted areas. Next, spray the Bathroom Cleaner over the SuperScrub to activate its cleaning power and let it sit for about 10-15 minutes to break down the rust,” says Sokolowski.

She continues, “Then, gently scrub the stain using a non-abrasive pad or sponge. After scrubbing, rinse the area with water to remove any remaining product, and finally, dry the surface with microfiber cloth to prevent future rust buildup.”

Tips to Prevent Rust From Staining Your Bathtub

Once you have your bathtub sparkling like new, there are a few things you can do to prevent rust from returning. Here are a few tips from Sokolowski to keep your tub shiny and rust-free:

• Clean Regularly: The most essential tip is to frequently clean the bathtub. Regular cleaning prevents stains from settling in. Make it part of your weekly home cleaning schedule to keep stains at bay.
• Wipe Your Bathtub Dry After Each Use: After using the shower or bathtub wipe and dry it thoroughly. This prevents water from pooling, especially in areas prone to rust.
• Use a Water Softener: If you have hard water, a water softener could help prevent rusting. Consider investing in one if you’re struggling with bathtub stains. 
• Fix Leaky Faucets: If you have a leaky faucet, then get it fixed as soon as possible. The constant drips can eventually lead to rusting over time.