Remove tar stains from stones

When a roof, such as a garage, a tool shed or a carport, is covered with roofing felt, tar is used for sealing and gluing. This tar is of course used in liquid form and so it can happen that a few Drops go wrong and ugly tar stains on brick, stone floors or other stones develop. In most cases, however, these tar stains can be removed.

Remove tar stains with special cleaners

The easiest way to remove tar stains from stones are special cleaning agents (such as special basic cleaners or stone cleaners) that loosen the tar. The application may vary depending on the cleaning agent, type of stone and manufacturer, instructions for use are usually included.

1. With most cleaners, the stones must be moistened beforehand. The cleaning agent is then diluted according to the manufacturer's instructions. Depending on whether the tar stains are particularly thick, the agent can also be used on its own.
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2. Then apply the detergent to the tar stains. After that, it should act for about 10-20 minutes so that the tar can be loosened. With many products, care must be taken to ensure that the areas remain moist during this time.
3. Then rub the tar stains soaked in detergent with a stiff brush or cleaning pad to remove them. Then rinse the areas with plenty of clean water (e.g. B. with a garden hose).


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4. If the tar stains have not completely disappeared after the first treatment, you should repeat this process again in the same way. At the end, depending on the type of stone, you can dry the stones and seal them with a protective agent.

Other remedies against tar

If you don't want to use detergents, you can try other methods.

• According to information, dry ice is said to have proven itself in removing tar stains. At temperatures from -20 C ° the tar becomes brittle and can normally be scraped off with a spatula.
• Even intense heat can help. The tar is softened with a hot air blower or Bunsen burner, for example, and can then also be removed with a spatula. With both options, however, you often need a cleaning agent at the end for the remaining residues.
• For some types of stone, you can also try the sandblasting technique. However, this is only suitable for rough stone surfaces, as it can damage smooth stone.

It is best to check with a professional which of the methods you can use in your case Remove the tar stains from the stones, because not every type of stone can be cleaned in the same way will. In addition, you should always read the manufacturer's information and not do without the specified protective clothing!