What is the difference between structural silicone sealant and glass silicone sealant?

We often use various sealants in decoration or in our daily life, and the most commonly used ones are glass silicone sealants and structural silicone sealant.

1. Different name

Different sealants will be marked on the product packaging. For example, our most common glass silicone sealant will be marked "neutral glass silicone sealant" or "acid glass silicone sealant" on the package. Some will State "weatherproof siliconesealant" and so on. If it is a structural sealant, it will state "silicon weather-resistant structural sealant", etc., and any product name with the word "structure" is a structural sealant.

2. Different adhesion

The main function of glass silicone sealant is to seal the gap, so its cohesive force is not strong, but the structural sealant is different. Structural sealant requires it to have high cohesive force, including tensile strength not less than 30MPA , the compression resistance is not less than 65MPA, and the shear resistance is not less than 18MPA. glass silicone sealants do not have these requirements.

3. Different application

The difference between the parts used is the important difference between glass silicone sealant and structural sealant, because the functions of these two kinds of sealant are different, so when we choose, we should choose according to the application.

1. For the bonding of stressed parts, structural sealant should be used

The most common ones are glass curtain walls, bonding of certain buildings, fixing of dry-hanging stone on external walls, fixing of embedded parts, etc. These parts are either subjected to tension, shear or pressure, so the strength of the sealant is extremely demanding. High, a structural sealant must be used.

2. For parts that only play a sealing role, you can choose glass silicone sealant

Most of the glue used in home decoration is for sealing. For example, the gap between the washbasin and the tile wall, the seal between the toilet and the ground, the seal between the window and the window sill, the seal between the cabinet and the kitchen wall, etc., can use glass silicone sealant.

In short, glass silicone sealants and structural silicone sealant have different functions due to the difference in their physical properties. When we choose, we must distinguish the scope of use. For parts that need to be stressed, such as bonding tiles, structural sealant is required, and for sealing some gaps, glass silicone sealant is sufficient. Of course, structural sealant can also be used for the sealing part, but it is a bit wasteful.