COAT FOR THE STOVEOlder homes still sometimes there are amazingly cozy and beautiful tiled stoves. Alas, today, like the furnace heating, the tiles are fading. And they can be found only as a piece of exhibits at exhibitions of ceramic artists. And whether it is, for lack of tiles to coat your kiln ceramic tiles? — often ask us readers. How to cook mastic to stick the tile to the furnace?

Forced to disappoint the authors of these letters: unfortunately, no adhesives or cements for this purpose and there are no secrets on the sticker tiles on the stove. This lining is impossible because when heated brick, tile and the layer of mastic will have a different extension, and the tiles will fall off soon.


But the tiles or the tiles kept on the old furnaces? Yes, but it wasn’t tile: the back side they are made in the form of the box and fastened with steel pins and soft wires, the ends of which were embedded in the joints between the bricks simultaneously with the conduct of an oven laying.


So we offer just to plaster the stove, using one of the following solutions. It is essential to remember that the weakest of them — clay, as he prepared without the addition of any other binder.

Before plastering the surface of the oven need to be well prepared, before applying the solution on the stove it should be protoplennoy that the solution was applied to the hot wall.
Surface preparation furnace. When laying is complete and the oven has stood for at least a month, you can begin the preparatory work. Oven clean from mud and do the same thing with stitches that are clear to a depth of 1 cm This is the simplest way to provide sufficiently strong adhesion of plaster to the masonry.
There is a more reliable preparation for plastering. It consists in the fact that after the pointing and removal of the solution here hammer in nails with length from 100 mm to 110 mm, preferably at some angle. To score they need to cap protrude above the surface by 5 mm and retreated from each other at a distance of 15-18 cm; vertical — 2-3 rows of masonry.
The nails of soft kiln wire is attached a woven mesh with a mesh size no larger than 20X20 mm. This creates increased roughness, providing more reliable fixation of the solution on the surface of the stove.
If the mesh is too soft and closely adjacent to the surface of the stove, under it, around the nails, lay the steel wire thickness 2.5—3 mm and also attach it to the nails.
Solutions for plastering use several compositions, measuring the raw materials volume parts and adding to the reinforcement solution the asbestos or finely chopped slag or glass wool. All the components of the solution should be thoroughly mixed.
Surface preparation furnace
Recipe 1. One part clay, one part lime paste, two parts sand, one part asbestos. All components lay at a time and mix, adding water and bringing the solution to desired thickness.
Recipe 2. One part clay, two parts sand, one part cement grade not lower than 300 and one tenth part of asbestos. First mix together the clay and sand and water added in such quantity to get a thick dough. Then enter the asbestos and cement and all mix again, add water to obtain a solution like thick cream. The solution should be used in the case within hours, counting from the date of preparation.
Recipe 3. One part of gypsum, two parts of the limy test, one part sand, two tenths of asbestos. Lime putty is mixed with sand and asbestos until homogeneous, obtaining a stiff dough. Take one part of plaster, shut it with water to density of liquid sour cream, add two parts lime mortar, carefully all mixing and getting the so-called charging. Density is regulated by water. This winding and is applied to the surface of the oven for 5-6 minutes after cooking, until the solution is seized. The winding should prepare no more than two liters for the specified period for novice plasterers that is enough. Stir the thickened starting with the addition of water is impossible, as it is then poorly grasped, dries, cracks and does not have the necessary strength.
Recipe 4. One part clay, two parts sand and one part asbestos. This solution is the weakest. It should be said that the thickness of the plaster is considered to be good in 10 mm, it is sometimes adjusted to 15-20 mm, but this is unnecessary.
Plastering is performed by the hot walls of the furnace. First, they moisten with water, then applied the creamy liquid solution that layer is called the scratch coat. Once it solidifies (a little stronger), and put the second layer of mortar — ground is more dense than the spray. Coatings recommended thickness of 5-7 mm. After drying of the soil surface is finally leveled — will be overwritten. If plaster thickness is 15-20 mm, then the solution is applied in three steps, each time levelling layer of mortar — so it is then easily erased. Cover the soil with a thin layer of pure plaster test impossible: later, when the grout is so thick the strength is.
Grout is made after shvatyvanija a solution, but still quite soft. Wooden or metal plastic grater is taken with the right hand; the left holding a brush, which, if necessary, moisten the plaster with water. Grout store so that the plaster was clean and smooth, with no missed spots and protein. If when dry, the plaster cracks, they expand (cut), moisten with water, cover with the same solution and again overwritten.
Painted plaster best lime wash, to which is added, stirring well, table salt diluted in a glass of water (100 g per 10 l of wash). Salt gives the plaster strength, and it is not otmelivaetsja. Apply the whitewash once or twice, but no more: a thick layer dries, can crack.
A. SHEPELEV, civil engineer

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