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Protect Limestone against Acid Attack

The best way to protect your limestone against acid attack is to seal and clean spills immediately.

Limestone being soft and porous is sensitive to acidic attack and can be easily damaged upon contact with acidic products. Therefore, limestone must be sealed to provide protection against damage and improve its longevity.

Because limestone is composed of calcium carbonate it is sensitive to acid. Limestone is immediately 'etched' (eaten/corroded) by any acidic material on contact - includes lemon juice, cola, wine and champagne. On 'polished' or fine-honed surfaces this acid attack will leave unsightly etching marks on the surface.

The high porosity of limestone makes sealing a must in order to provide protection against future acid attack and liquid spillage.

In any case, acidic substances coming into contact with your limestone should be cleaned away as quickly as possible.

  • As limestone is acid sensitive it is important to clean up spills immediately to avoid permanent staining and etching.
  • Minimise the use of water when cleaning.
A common misunderstanding

It is important to remember that by its nature an impregnating sealer will not fully protect the surface of a limestone tile from acid, which can etch the surface. A red wine spillage would be a good example. While an impregnating sealer will give immediate contact protection, if the spill is left for a period of time the acid in the wine will etch into the surface. Cleaning spills away quickly is extremely important!

  shining limestone after sealing

How can I protect my limestone against acid attack?

Any acidic substance is harmful for your limestone tiles, they can be etched (eaten/corroded) easily and sealing against acid attack is very difficult.

The best way to protect your limestone tiles from acid attack is to seal and clean spills immediately. The high porosity of limestone makes sealing a must in order to provide protection against future acid attack and liquid spillage.

  Protecting Limestone from Acid Etching

How can I get my limestone sealed?

Choose an experienced company with specialised equipment and expertise to correctly seal and maintain your limestone once installed.

It is also important to keep your sealed limestone clean, wipe up spills quickly and clean periodically.

Professional cleaning will not only remove surface dirt but draws out dirt deep embedded within the pores of limestone.

Get in contact with a professional stone floor maintenance company with the equipment and knowledge to ensure you're valuable surfaces look just how you want them.

Tile Cleaners and StoneMaster are members of the network of independent Accredited Applicators who have been fully trained in the proper application of limestone care products, offering a full service by thoroughly cleaning the limestone area to be treated, product application and providing after sales care.

  shining sealed limestone tile floor
  • Tile Cleaners Australia is Australia's leading tile care provider of all tile & grout cleaning, tile sealing, tile stripping & sealing, tile regrouting, grout colour sealing, and minor tile repairs. If you require any limestone cleaning, restoration or have any questions regarding your limestone their friendly customer service are very helpful.
  • StoneMaster provide a diagnostic approach to each unique situation, including a full analysis, selection of the best-required method of restoration and follow up maintenance procedures always ensuring outstanding results.

Ensuring your limestone is thoroughly cleaned before sealing is important as you may seal in old stains or dust and debris embedded in the stone, resulting in the sealer needing to be stripped and resealed.

Applying a sealer that is not suitable or of sufficient quality will result in limestone surfaces you aren't completely satisfied with.

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