NATURAL STONE STICKING Here, the technical experts at full tiling solutions specialist BAL offe
Natural stone has a timeless beauty and comes in a wide range of colours, sizes and textures. Combined with its practical qualities, such as providing a durable surface that will look good for years to come, it continues to be a favoured choice by flooring professionals for both commercial and domestic installations.
Natural stone comes in a number of different forms such as granite, limestone, marble, travertine, sandstone and slate, which all have very different physical properties. This makes the correct selection of tile adhesive extremely important.
Some carbonate-based stones, such as marble, travertine and limestone, may be susceptible to drawing in residual moisture from the tile adhesive or grout, which has the potential to cause problems. If this happens, there is a strong risk of the stone becoming stained or water- marked. Furthermore, excessive residual moisture has the potential to react with certain minerals (such as iron
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oxides) and organic deposits in the stone, which could discolour the face or edges of the tile.
For certain types of stone use, it is therefore recommended to use a suitable rapid-setting cementitious tile adhesive, such as BAL Pourable One or BAL Rapid- Flex One, to limit the potential moisture under the stone during installation.
When using large-format un-calibrated stone, to achieve a flat tiled surface, it is advisable to use a thick- bed, pourable, rapid setting and drying cementitious tile adhesive, such as BAL Pourable One. This trusted pourable product can offer bed thickness up to 25mm, and can be grouted after three hours due to its fast-setting properties. The cement chemistry in this product uses up more of the water during hydration, thereby reducing the potential risk of staining caused by transfer via water- soluble salts or water staining.
www.tomorrowstileandstone.co.uk
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