State economy

Tile grouts – what are they?

The last operation in laying tiles is the application of grouting. Grout performs several functions. In addition to a decorative function (grout – as a frame for a picture), the grout can also slightly fix and disguise the errors of tile laying (the difference in the thickness of the seams) and, of course, the grout protects the seams from dirt and moisture.

Like most building and finishing materials, grouts for tiles differ in composition, consistency, and for its intended purpose, but, as a rule, not many are wondering – how to choose the right grout?

For most, the selection of grouting comes down to the selection of the tint, and this is not a very correct approach. The choice of grout depends not only on the color of the tile, but also on the thickness of the seam, area and place of use. Grouting materials differ, first of all, in composition. There are grouting mixtures based on cement and based on epoxy resin.

Cement mixtures, in turn, are divided into cement (based on Portland cement) and cement-sand (based on Portland cement and sand). Cement grouts are sold in dry form and are divorced before use with water or liquid latex. A simple cement mixture is wiped on large seams from 3 to 5 mm.

Cement-sand mixtures have greater strength and are used for the width of the seams of more than 5 mm. However, the color scheme of such mixtures is small and basically mixtures of gray and white are found. The cement-sand mixture should not be used to grout materials that are easy to scratch.

To dilute dry mixtures, it is possible to use a latex supplement, which increases moisture resistance, increases elasticity and allows the grout to maintain your color longer.

Epoxy grouts are two -component compositions containing resin, coloring pigments and hardeners. Epoxy grouts have increased viscosity, working with them is much more complicated, are used for grouting of more than 6 mm (it simply will not penetrate into narrow seams). Epoxy grouts are moisture resistant, are resistant to many chemicals.

Furanic resin -based grouts are considered resistant to all chemicals, even strong acids. A feature of the application of furana grout is that the grout is applied to the surface covered to protect wax. To remove the remains of the grout, steam is used, so it is even more difficult to work with furan grouts than with epoxy.

Before using epoxy and furanable grouts, it is recommended to test them on resistance to chemicals that will affect them.

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