Rigid waterproof, flexible waterproof, what is the difference and how to choose?
Nov 22,2023
In the process of home waterproof, we often hear the two concepts of rigid waterproof and flexible waterproof, but for many consumers, the two concepts are still relatively vague. What is rigid waterproof, what is flexible waterproof? What is the difference between them? And how to choose?
In fact, rigid and flexible waterproof coatings, they are not good or bad, the so-called "soft" and "just" product performance effect is different, can not be used as a standard to judge the quality of materials.
rigid waterproof
01, what is rigid waterproof
Rigid waterproof material refers to the cement, sand and gravel as raw materials, in which a small amount of additives, polymer and other materials, by adjusting the mix ratio, inhibit or reduce the porosity, enhance the density of the interface between the raw materials, the preparation of cement mortar concrete waterproof material with certain penetration resistance. It mainly includes waterproof mortar, waterproof concrete, permeable crystal, etc.
02, what are the characteristics of rigid waterproof
Advantages:
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The construction environment is not strict, can be wet or rough base surface construction;
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Can be combined with the base surface into a whole, in the face of the water and back water can be constructed;
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After the construction is conducive to the construction of the next process, such as directly in the waterproof layer on the tile, putty, brush paint and other processes;
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Long durability, synchronized with the building life, is a permanent waterproof material.
Disadvantages:
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No ductility, not suitable for construction of parts with large structural changes;
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The uneven settlement of the foundation caused by the small deformation of the roof components, temperature deformation is more sensitive, prone to cracks and water leakage.
flexible waterproof
01, what is flexible waterproof
Flexible waterproof is a waterproof material form relative to rigid waterproof such as waterproof mortar and waterproof concrete. Flexible waterproof through flexible waterproof materials (such as membrane waterproof, coating waterproof) to block the passage of water, in order to achieve the purpose of building waterproof or increase the ability to resist leakage.
02, what are the characteristics of flexible waterproof
Advantages:
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It has good ductility and can resist the slight vibration of the building;
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Can be in a variety of complex shapes of the grass-roots surface construction, the formation of a complete seamless waterproof coating, construction is convenient;
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The flexible coating has strong anti-deformation ability, can adapt to certain deformation and expansion and contraction, and is not easy to crack.
Disadvantages:
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Construction of the grass-roots requirements are relatively strict.
In the home decoration waterproof construction, we usually recommend, for the need to pave tiles of the wall, the use of rigid waterproof; and for the base surface of the complex situation, should be based on flexible waterproof coating. The so-called "wall rigid soft", "rigid soft combination", need to choose the appropriate waterproof material according to the actual situation.
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