How to Remove Rust Stains from Concrete

Is your garden patio, driveway or other exterior concrete surface suffering from unsightly rust stains?

We understand how frustrating rust stains can be, and as we’re heading into summer months we want to help you transform your outdoor space and keep it looking fresh and clean.

Rust stains can be stubborn and difficult to get rid of, because the stains can penetrate deep into the pores of the concrete. In this guide we’ll be looking at how to remove rust stains from concrete and other surfaces with GK's Stinky Pinky rust remover and alternative methods.

What is making my concrete go rusty?

Rust forms when the concrete comes into contact with metal that has been exposed to the elements. The most common metal to cause rust stains is iron, but other metals can cause staining too. The stains can originate from metal patio furniture, railings, gates, fence posts, rusty garden tools, and even some garden fertilisers that contain various metals and minerals.

Sometimes it is the concrete itself that begins to rust if any wire mesh or steel embedded inside the concrete is exposed to moisture and air. If the concrete gets damaged and the metal rusts then this will make its way to the surface.

Lastly, if there is any trace of iron in the aggregate within the concrete, this may also be exposed if the concrete begins to wear down.

If you want to prevent stains from returning then it's best to find out what is causing your problem and put measures into place to combat it.

How do I clean rust stains from my concrete?

There are a few different ways you can tackle rust stains on your concrete, from easy home remedies to specialist cleaning products that each come with advantages and disadvantages.

You cannot use common detergents to remove rust stains from concrete, and methods such as power washing are also useless in this instance. Many products that remove rust stains are acid based, either oxalic acid or trisodium phosphate. Similarly, household products with an acidic pH can be used.

Acid-based products can be damaging to the substrate which is why we have developed a unique formula that effectively removes rust stains without acid, ensuring the surface is neither harmed nor discoloured, but we will explore various methods so you can find the one that works for you.

When choosing a method you need to take into account how old the stain is, how severe it is, and how porous the concrete surface is. It is always best to act quickly and remove the stain as soon as possible.

Removing rust stains from concrete with GK Stinky Pinky Rust Remover

Stink Pinky rust remover is a powerful, non-acid rust remover that transforms rust compounds into a water-soluble solution, dissolving the stains without harming the underlying surface material.

Stinky Pinky is specially formulated to address rust stains on delicate surfaces as it contains no caustic acid. This means it is safe for a huge variety of surfaces, including concrete, natural stone, brick, masonry, render, terracotta, porcelain, granite, marble and most other mineral based substrates. This particular product can be used both inside and outside the home.

Due to its virtually neutral pH, the formula is less dangerous to the user and the environment than other acid-based alternative cleaners, and will not harm your surface. Any discolouration is temporary and will fade after 48 hours.

Always make sure to read the proper safety and application methods for every cleaning product you use for optimal performance and wellbeing.

Can I use lemon juice to clean rust stains from concrete?

Lemon juice can be used to treat rust stains, as long as they are not very old or severe. Due to its acidic nature this can be an effective method. The same steps apply to white vinegar so scroll down for the method.

Can I use vinegar to clean rust stains from concrete?

White vinegar can be used to remove rust stains from concrete and due to its higher acid content, this method can be more effective than lemon juice for slightly harsher staining.

How to remove rust stains from concrete with lemon juice and white vinegar

Step 1: Make sure the surface is clean from any dirt and debris so the acid can work on the stain properly.

Step 2: Do not dilute the liquid, pour it straight onto the rust stain.

step 3: Leave the liquid to work for 10 minutes.

Step 4: Scrub the stain and the liquid with a stiff bristle brush.

Step 5: Use warm, soapy water to rinse the acid away.

Other cleaning methods for rust stains

There are many other rust remover products available on the market. Just remember that these are usually acid-based so may have a harmful effect on the concrete, as well as other surfaces.

Summary

In summary, if you need an effective cleaner for your rust stains then you can use GK’s Stinky Pinky Rust Remover. This specially designed formula is tough on rust stains, without causing damage to the surface material.