1. Different functions.
The main difference is that the
structural sealant is load-bearing and needs to transmit the external and internal forces of the bonded materials for bonding between glass, window frames, stone and other components.
The weather-resistant sealant does not bear the load and mainly plays the role of sealing. It is used for sealing between components to achieve the purpose of waterproofing.
Note: Weather resistant sealant has good adhesion, even if it is not structural, it can bear a certain load, and the transmission load cannot be considered.
2. Different prices.
The price of structural adhesive is higher than that of the same grade of weathering adhesive.
Structural adhesives not only have the properties of weathering adhesives, but also have stronger bonding properties than weathering adhesives.
3. Different uses
Structural silicone: mainly used for component reinforcement, anchoring, bonding, repairing, etc.; such as bonding steel bars, bonding carbon fibers, planting reinforcement reinforcement, crack reinforcement, sealing, hole filling, road stud sticking, surface protection, concrete bonding Wait.
Weather-resistant silicone: used for weather-resistant sealing of various glass curtain walls; used for weather-resistant sealing of metal (aluminum sheet) and enamel curtain walls and ceilings for roof construction joints.
4. Different properties
Structural silicone sealants are divided into two-component and one-component, while weather-resistant silicone sealants have only one component.
Structural adhesives have strong tear resistance, elongation at break, and tensile strength; while weather-resistant adhesives are resistant to UV rays, snow, and acid rain.
Weatherproof caulks are more resilient than structural caulks.
Structural adhesives can withstand alternating external forces, but will shift if subjected to external forces for a long time. Therefore, structural adhesives should not be exposed to harsh environments such as wind, sun, and rain for a long time.
Weather-resistant sealants cannot withstand alternating external forces for a long time, but can be exposed to harsh environments such as wind, sun, and rain for a long time. Most structural and weathering sealants are curtain wall sealants and insulating glass sealants. In the construction process, the appropriate construction silicone sealant should be selected according to the construction requirements and construction environment, so as not to affect the construction effect. Choosing the right silicone sealant and a professional manufacturer will do more with less.
