I just do the interior decoration of this line, see people painted toilet waterproof material Dan Dan Guan porcelain porphyry porch corpses Han Jian said is used for the back of the water, I do not understand the back surface specifically refers to what surface, I know that direct In the plaster wall coated with waterproof material, and then coated with a layer of cement mortar, and then paste the wall is it? But why is it said that this layer of waterproof material called back water? That is what the surface of the river ah? More
May be your understanding of the error, the general waterproof, are in the water to do the water, whether it is the external walls, roof or bathroom are done from the water surface to do waterproof, waterproof from the back of the water, high cost, waterproof effect is not Stable, directly from the problem to solve not better?
Mainly because the surface of the leakage is easy to find, easier to identify the construction of missing points.
Now the interior decoration with the waterproof coating is generally waterproof, coated waterproof and is divided into acrylic waterproof and polyurethane waterproof, this waterproof are used to meet the water; kitchen bathroom tiles should be done before the waterproof Is to meet the water, not the back of the water.
Back to the surface is the plastic seal is not as good as the water surface of the good. Greeting the surface is directly done in the bathroom, the back of the water is generally done in the bedroom.
