How to Remove Rust Stains from a Stone Patio?

Rust removal from porous natural stone surfaces isn’t the easiest of tasks to deal with, rust can be one of the most stubborn stains to remove and if not can ruin the look of a stone patio. Traditionally the only way to successfully remove the stain is to use harsh acid based cleaners. Sometimes this would end up causing more damage than the rust stain itself to your precious patio!

And who really wants to spend hours scrubbing their patio stones ready for summer? Not only could this damage the stone if you use abrasive tools and chemicals, but it can also be time consuming and backbreaking work.

Removing rust stains from a stone patio can be very tricky, but thankfully Universeal Sealants have got you covered with a very effective, safe non-acid product.

Below is our tried and tested method on how to remove rust stains from a stone patio. It’s not only effective and simple to use, but will not cause any damage to the stone paving slabs.

If you want a painless patio rust removal method that works within minutes read on (and make sure to watch the video at the end with the results shown).

How to remove rust stains from a stone patio in 4 easy steps

Removing rust stains from your patio is both easy and affordable with Universeal’s Rust-Off non-acid formula. By following the manufacturer’s guidelines, your patio will look as good as new after you’re done with it.

Here’s how you do it.

What you will need:

Before you start, make sure you have the following applicators to hand:

  • Universeal Rust-Off (click for prices)
  • Paintbrush
  • Measuring jug or bucket
  • Deck brush or broom
  • Scrubbing brush
  • Sponge
  • Squeegee
  • Fresh water or a running hose

This formula is undiluted, so you just need to apply it directly to the affected area.

You must complete a small area to understand exactly how the product works and reacts on the surface of your particular stone.

1: Apply the Rust-Off product

Ensure the area you’re working with is completely dry. Dry, meaning uncontaminated with no previous cleaners on the area, and not affected by any surface water or possible moisture. This will allow the product to target the rust more effectively.

Apply the Rust-Off formula to the stain, as generous as you need to be, to ensure all areas are covered.

The best way to apply, is either pouring the formula straight on or by using a paintbrush. Because it’s non-acidic, you can even distribute amounts into a bucket/measuring jug and apply it as you go. A paintbrush is also ideal for those hard-to-get areas.

For larger areas, you can pour the product directly on the stain and distribute using a deck brush or broom.

If you feel a stain is particularly stubborn, work the product in more thoroughly after it has been applied.

This can be done with a sponge, squeegee or even an old toothbrush.

Soon after it is applied, you will notice a reaction taking place, which turns the solution a dark purple, this dark purple reaction will only occur if the stain is iron oxide rust. If this doesn’t happen within 1-2 minutes then this will confirm the stain is definitely not rust and will need to be reassessed and need for an alternative cleaning solution.

2: Let the Rust-Off settle for 5 to 10 minutes, Do not leave for an extended period of time

Allow the product to work for approximately 5 minutes, once all of the orange rust stain has turned a dark purple colour then you can start to slowly rinse with clean water.

It is recommended you do not exceed 10 minutes.

3: Rinse the stone patio off with a hose

The best and easiest method to rinse off, is by using a hose. Another source of clean water is also fine.

Simply rinse away the product and watch as the results come to light. For stubborn areas, it may be necessary for a second application. Allow the product sufficient drying time for a final finish. Weather permitting, this shouldn’t take too long, depending on the type of stone you have used.

4: Repeat the process if some rust stains are harder to shift

If the rust stain or purple staining is still slightly present, repeat steps 1 to 3. For stubborn areas, no more than 3 applications should be required.

For whatever reason more than 3 applications are needed, it should be noted that possible discolouration may occur. For more technical support contact our technical helpline 01300 345898 ext2

remove rust stains from patio

About the Universeal Rust-Off Non-Acid Formula

You wouldn’t want to put any harsh chemicals on your stone patio, and now you don’t have to. Universeal Rust-Off is a non-acid formula, with the latest research and technology backing it through its production methods. In fact, it’s actually the UK’s most effective specialist rust stain remover for natural stone material.

Stronger cleaners may harm your stone surface by etching or bleaching the natural properties and also cause damage and discolouring. Universeal prides itself in getting the best results, without causing concern and damage to your patio areas.

The formula is designed using a unique combination to ensure the PH levels are balanced, giving it a neutral finish. This makes it more suitable for both internal and external use.

Rust-Off only targets and attacks areas of rust, so oxide patches, which turns the solution purple once it’s administered. This only fixes upon these areas, without adversely affecting the stone itself.

What’s even better is that it’s really simple to use, it only takes 10 minutes maximum to work and the job is done. Not only is it easy to use, but a small amount goes a long way. This gives the product longevity for summers (and winters) to come.

Universeal is known for the quality of its products at an affordable rate. This gives you peace of mind, knowing you can get the best products but at a price you like.

The bottom line is; that over time you will inevitably get rust stains on your patio. Particularly when using lawn feed and weed products and have metal garden furniture or a leaking heating system. With our products, you can be reassured that you will achieve the perfect result each and every time.

Watch Rust-Off in action

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Want more patio maintenance tips?

If you’re looking to find out how to remove rust stains from a stone patio you obviously want a stunning-looking area and are prepared to work at it. Here are some other guides you might also be interested in to keep your paving slabs in tip-top condition.