VIDEO: Properly caring for stone window sills

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Stone that is processed into window sills often belongs to the natural stones, for example marble, Slate or granite and is very often used outdoors and indoors, while concrete and metal rather only be processed outdoors.

Marble or granite window sills need maintenance

  • Usually is a stoneWhether marble or granite, very easy to care for, as long as you don't use harsh detergent additives. Cleaning agents, such as washing-up liquids or abrasives, clog the pores of a stone and should never be used for maintenance!
  • The widespread household tip, stone window sills, such as B. Marble, to be cleaned with lemon peel and salt, should be treated with extreme caution, because not all types of marble can be cleaned with it, because their surfaces could be attacked.
  • Basically, it is completely sufficient if you wipe the inner window sills with a damp cloth and polish them with a soft cotton cloth.
  • If the marble or granite window sills have become unsightly matt, you can restore the shine with a little cooking oil.
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  • Of course, the smooth surfaces of the inner window sills are easier to wipe and care for than the roughly ground stone of an outer window sill.
  • Slate window sills, which are usually only used outdoors, are extremely robust. They even withstand the chemical influences of cleaning agents. Nevertheless, you should also only clean your slate window sills gently with warm water.
  • Window sills made of granite or marble on the outside require a bit more complex maintenance, because the weather conditions can cause algae and moss to form. Nevertheless, the following always applies: no sharp ones Cleaning products use. First scrub off the coarse dirt with clear water and a natural hairbrush. Then wipe the window sills with clean water.

The advice from the specialist stone trade will help

  • You can add a little stone soap made from natural oils, which is commercially available, to the washing up water, which will impregnate and protect the window sills for a few weeks. Especially when stains have formed on the stone of the window sills, such as B. by adding blood, fat or flower water, it can make sense to first work with a natural hairbrush and then with stone soap.
  • Tip: Ask your specialist retailer about wax-based care products for stone outdoors. Depending on how old and used your window sills are, the question may well arise as to whether it makes sense to have a professional refinement carried out. There are specialists who grind, polish and seal very old, porous and damaged outer window sills so that normal house cleaning is sufficient for maintenance later on.
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