How to choose stone protective agent

   Stone protective agent main function is effective to avoid man-made or the influence of natural environment is polluted, thus affecting the appearance of stone, texture stone less than its value, and can effectively ensure the nature of stone, reached a long time such as the new effect, prolong the service life of the stone.

       The influence factors of the surface condition of the choice stone protective agent is not only to consider the stone door effect and the beautiful. First of all, we should also consider to stone, stone, the stone required of the decorative effect and the climate and environment. The first is to determine the granite, marble, stone, terrazzo, synthetic slate in which. After the determination of species, and then determine which of them is one of the sub species, and then determine which species, because even the same species, its varieties, structure, performance, especially the water absorption is also different.

      Secondly: the same stone for decoration different places to use the stone protective agent is not the same, stone for the hall, kitchen, living room, bathroom, digging wall, a cylindrical waterproof antifouling effect effect and exposure to environmental requirements. Generally speaking, the stone can absorb water and oil, thus forming oil. Water absorption refers to the degree of stone absorption of liquid, usually with water absorption rate of Wa (%) to represent and calculate.

        Wa = (m1-m0 ) / m0 * 100%

   In M0: quality of dry sample in air, g;

   M1: water saturated samples in air quality, G.

  To determine the varieties of stone of water absorption on the selection of protective agent is critical.

   Last stone protective agent selection can also refer to the following 7 points to choose:

1) smooth stone (especially smooth marble) can be used to increase the glossiness of stone protective agent.

2) decorative effect requires the use of stone colors to deepen the use of occasions should be selected by Yan type of protective agent.

3) to maintain the original appearance of the stone should be used where the primary protective agent, such as stone water repellant.

4) the wet paste to install, at the bottom of the stone surface should be used without affecting the stone and cement mortar bonding fastness of the protective agent (i.e. not available hydrophobic protective agent) as far as possible.

5) consider the environmental protection requirements (especially in the confined space construction), should be as far as possible the use of water-based protective agent or do not contain volatile organic solvents.

6) the stone surface (without and with cement mortar, the contact surface of the stone) or the dry hanging construction stone, both available waterproof protective agent, also available hydrophobic protective agent.

7) often exposed to the oil pollution, should choose the oil type of protective agent.

8) ambient air temperature is too low, the water based protective agent because of freezing and can not be constructed, then it should be the use of stone oil protective agent (oily protective agent should pay attention to the construction of fire protection).

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