Seal tiles properly

Tiles, like other building materials, such as wooden floors, can also be sealed. Often acquaintances have supposedly insider tips - even car polishes are recommended. Effective sealing requires good knowledge of the tiles to be sealed as well as the sealings themselves. Some tile types even need to be impregnated before they can be sealed. Below we explain how to treat the different tiles.

Tile is not the same tile

For tiles, most people think of ceramic tiles, which usually have a glaze. But in addition to new manufacturing techniques, the range of tile materials offered is also influenced by current trends. Conventional ceramic tiles are to be divided into stoneware and stoneware tiles. There are also clinker and porcelain stoneware tiles and terracotta (cotto).

When tiling, note: some tiles must first be impregnated

In addition to the manufacturing process, the aftertreatments are crucial, as you proceed in tile sealing, because depending on the subsequent treatment, the different tiles have completely opposite properties. Some tiles are only fired and delivered, others glazed in turn. Others are polished.

earthenware tiles

Stoneware tiles are the "simplest" tiles. They are porous and take up to 10 percent of water. Therefore non-frost resistant tiles are always stoneware tiles. Today, they are mainly used only as wall tiles in the interior. In addition to untreated stoneware tiles you will also find glazed tiles. The glazed tiles can be treated with a corresponding tile polish. Non-glazed tiles may need to be pre-impregnated.

Stoneware tiles

These are today mainly used as floor tiles in outdoor and indoor ceramic tiles. They only absorb a maximum of three percent water. Like stoneware tiles, they are glazed and unglazed. In particular, if non-slip tiles are needed, you can assume that they are not glazed tiles. When impregnating and sealing, proceed as in the earthenware tile.

Porcelain tile

Porcelain stoneware tiles appeared in the 1980s. It is very high pressure and dry-pressed tiles. Due to the high firing temperatures, the pores of the extremely break-resistant stoneware tiles are normally closed. However, many porcelain stoneware tiles are offered for optical reasons polished. However, polishing is nothing more than grinding. So the surface is sanded, which opens the pores. Although polished porcelain stoneware tiles generally absorb hardly any water due to the high density, dirt can penetrate deep into the tiles due to the now open kappilar system of the tiles.

To prevent this, it is a must to impregnate polished porcelain stoneware tiles and then seal them. But beware! In particular, cheap goods from the Far East is often treated (and Italian tile dealers buy there!). Although it is polished porcelain stoneware tiles, but in addition, the tiles are impregnated in a special process. However, especially in very bright light, this industrial impregnation is often perceived as an unpleasant gray haze on the tiles. Otherwise you can use special hard oils and hard wax oils for porcelain stoneware tiles for impregnation. Only then can you seal the tiles. Otherwise, unwanted and irregular discoloration may occur.

Cotto (terracotta)

Terracotta tiles are also open-pored tiles. Also, they must be impregnated before sealing. Again, you can use hard oils and hard oil waxes.

The impregnation of tiles

Depending on your tiles, you may need to impregnate them before sealing. In the specialized trade you can select the most different products. Depending on the tiles, chemical impregnating agents such as silanes are also available.

The sealing of tiles

There are several ways to seal tiles. Latest products from the nano technology form a protective film that is completely repellent to oils, water, dirt particles, etc. However, when choosing nano products you must pay close attention to the product composition, as the term is not really protected and the proportion of real nano ingredients can be very limited.

In addition, most tile sealants are currently hydrophilic in their properties. That is, they do not repel water, but appealing. This has the advantage that there is no drop formation. Otherwise, these drops leave limescale on drying. Water-attracting also means that the water is thereby relaxed and dries out better. In addition, good tile seals have photocatalytic attributes - exposed to UV radiation from the sun, a chemical process is initiated that also protects the tiles. Hydrophobic (water-attracting) sealants are only found indoors because they degrade very quickly under the usual weather conditions.

Tips & Tricks

Consider the tile's new properties when tile sealing. Sealers significantly reduce slip resistance. Especially on much committed tiles a greater risk of accidents is given.

If you do not know which type of tile you have laid, ask a tile specialist before you buy impregnations and sealants. The wrong means can quickly create unsightly stains on tiles that you can not remove.

In addition to tile sealers, the specialist trade also offers special tile joint seals. High-quality nano-sealants are equally suitable for tiles and joints. The joint seals are also available as a pin.

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