The Method of Marble Sealing

During the installation of the stone, it is necessary to ensure that the natural texture on the surface is not contaminated, and also to have certain waterproof measures. At present, there are three methods for stone sealing:


1. No sealant is added to the empty seams, air convection is formed on the back of the stone, and water vapor is discharged outside to prevent the temperature difference between the stone surface and the surface of the stone from condensing water.


2. Half-seal sealing is to keep the facade without sealant. The facade has a good three-dimensional effect. In fact, the glue layer is hidden inside the node. To ensure that the thickness of the sealant should be about 6mm, but can not exceed the width, its width should be determined according to the quality of the glue.

3. Use a neutral sealing silicone glue. It is a special glue for stone. It seals all the seams on the façade. The rainwater on the façade cannot enter the back of the stone. It keeps the stone in a dry state to ensure the bending strength and resistance of the stone. Shear strength does not change.

In addition, when sealing the stone, it should be noted that the stone also needs to be "breathable". Stone is composed of various crystals, and crystals are composed of various minerals. The crystal structure formed by these minerals determines the type of stone. The integrity of the crystal has a lot to do with the millions of bacteria inside it. The water in the stone also needs to evaporate to the outside through the gap.


First, we must ensure that these bacteria survive and reproduce. After lengthy research, it has been discovered that bacteria seem to play an important role in keeping stones intact.


Secondly, when sealing the stone, the sealant is filled in the pores or crystal spaces of the rock and will not flow out of the stone. The purpose of sealing is to prevent liquid penetration and staining.


Also, avoid using acrylic sealants or impregnants, as they will block the pores and kill bacteria, completely blocking the flow of water in the stone. If the inside of the stone becomes wet, the stone will crack. If the sealant is used in excess and is not properly removed to keep it wet, the stone covered by the sealant will fade and dim.

Reprinted from:https://www.stonesm.com