How to Clean Indian Sandstone Paving: A Comprehensive Guide

How to Clean Indian Sandstone Paving: A Comprehensive Guide

Indian sandstone is a popular choice for paving due to its rustic finish, earthy tones, and versatility. However, like all natural stone, it requires regular maintenance to keep it looking fresh and prevent deterioration. In this comprehensive guide, we will take you through the process of cleaning Indian sandstone in eight simple steps. Whether you are dealing with everyday grime or stubborn stains, moss, and algae, we have got you covered.

Table of Contents

1. Identifying the Problem
2. Choosing the Right Solution
3. Preparing the Cleaning Mixture
4. Applying the Mixture to the Sandstone
5. Scrubbing and Brushing the Stone
6. Rinsing and Removing the Dirt
7. Power Washing (Optional)
8. Preventative Measures for Future Maintenance
9. Enjoying Your Clean Sandstone Paving
10. Conclusion

1. Determine the Issue

Before you start the cleaning process, it's important to identify the specific issues with your sandstone paving. Different problems require different solutions. Here are some common problems and their causes:

• Everyday dirt and grime:

This is the result of regular use and can be easily rectified.

• Algae growth:

Green fuzz covering the entire slab is usually caused by algae.

• Moss:

Green borders between the slabs are a result of moss growth.

• Lichen:

Patches that get larger over time are caused by lichen, which is a combination of fungus and algae and/or cyanobacteria. Lichen can be the most challenging issue to deal with.

2. Selecting the Right Solution

To clean Indian sandstone, it's important to choose the right cleaning solution. Avoid using acid-based products or solutions that contain iron, as they can cause rust and discoloration. Harsh chemicals can also permanently damage the sandstone. Fortunately, you don't need fancy potions to clean Indian sandstone paving slabs. Here are the recommended solutions:

• Everyday grime:

Soapy water (washing-up liquid) is the simplest and safest remedy.

• Algae, moss, and lichens:

Use a patio cleaner (always read manufacturers application guideline prior to use).

3. Preparing the Cleaning Mixture

Once you have chosen the right solution, it's time to prepare the cleaning mixture. For soapy water, add enough soap to make the mixture frothy. For patio cleaners this will vary depending on the brand and the type of sandstone paving patio clear used. Make sure to wear protective gloves and goggles when handling liquid based patio cleaning solutions.

In order to give the chemicals ample time to dislodge surface dirt, let it sit for 20 to 30 minutes if using soap water (longer is better for more severe buildups) and if using a patio cleaner this will vary, therefore, it is important to read the manufactures technical data sheet.

4. Applying the Mixture to the Sandstone

Before applying the cleaning mixture, remove any nearby furniture and sweep the affected area. Then, pour the mixture onto the sandstone slabs, ensuring thorough coverage. Let it sit for 15-30 minutes, or longer for more depending on the manufacturers recommendation to remove stubborn stains and build-ups.

5. Scrubbing and Brushing the Stone

After the mixture has had enough time to loosen the dirt and stains, it's time to scrub and brush the sandstone paving stone. Use a stiff brush or broom to scrub the surface, paying special attention to corners, gaps, and borders. For lichen removal, a wire brush may be necessary. Be careful not to apply too much pressure, as it can damage the sandstone.

6. Rinsing and Removing the Dirt

Wash away the loosened dirt and cleaning mixture with clean water. You can use a bucket, watering can, or a hose with low pressure. In most cases, this step will complete the cleaning process. Though you might need to repeat the previous methods two to three times over a number of weeks if the stains and buildups are really difficult to remove.

7. Power Washing (Optional)

A power washer might be useful if you need to clean a sizable area of sandstone. Be careful though, as sandstone is relatively soft, and a strong torrent could erode the stone and the impurities as well. Instead of washing parallel to the joints, use a low pressure setting and wash diagonally across the slabs. If necessary, repeat the procedure to ensure thorough cleaning.

8. Preventative Measures for Future Maintenance

It's crucial to take preventive action to stop infections and buildups from occurring in the future. Here are some steps you can take to avoid problems:

• Brush your sandstone frequently to remove dirt, weeds, and germs before they get a foothold.
• To protect the jointing and stop moss, algae, and fungi from growing, use a high-quality sealer.
• Take into account shifting plants and removing surrounding water features that may cause moisture to accumulate.
• Perform the cleaning procedure once more every two to three months, even if there is no visible dirt, to identify any invisible hazards as soon as possible.

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9. Enjoying Your Clean Sandstone Paving Slabs

Congratulations! You have successfully cleaned your Indian sandstone paving. After the area is dry, you can reintroduce plants, garden furniture, and people to enjoy the beauty of your clean sandstone.

10. Conclusion

Cleaning Indian sandstone paving slabs and patio packs is a straightforward process that requires a little time and effort. By following these eight steps, you can keep your sandstone paving looking fresh and prevent deterioration. Regular maintenance and preventative measures will ensure the longevity and beauty of your Indian sandstone. Enjoy your clean and vibrant outdoor space!

Browse our wide selection of Indian sandstone paving for more details on selecting the best material for your patio or garden area.

Contact us

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Regarding any questions you may have about our range of Sandstone Paving Slab or other products, we would be happy to help!

Get in touch at or 01733 639004 for your natural sandstone paving renovation project.

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