1. Definitions
Structural adhesivesIt is a high-strength, high-elasticity adhesive used for building structure bonding. It is usually made of materials such as silicone, polyurethane, epoxy, etc., and can withstand the heavy loads required by building structures.
Glass glue, also known as silicone sealant, is mainly used for building decoration and sealing. Its main component is silane compound, which has good elasticity and weather resistance, and is suitable for non-structural bonding.
2. Physical properties
Structural adhesives have excellent weather resistance, water resistance, and high and low temperature resistance. It retains high bond strength and stable elasticity over a long period of time, making it suitable for carrying important structural loads.
Glass glue is relatively soft, has a certain stretch and compression capacity, and can resist a certain degree of thermal expansion and cold contraction, but its bearing capacity is not as good as that of structural glue.
Third, the field of application
Structural adhesives are mainly used for curtain walls, structural bonding of large glass components, skylights and other building structures.
Glass glue is widely used in non-load-bearing parts such as door and window decoration, caulking between glass, and waterproof sealing.
Fourth, performance requirements
Structural adhesives have high requirements for bond strength, durability and anti-aging properties, and need to undergo rigorous performance testing and certification.
The performance requirements of glass adhesives are relatively low, and the main focus is on sealing and weather resistance, while strength is not the main consideration.
5. Safety performance
The application of structural adhesives in key structures such as curtain walls is crucial to the safety of personnel. Therefore, structural adhesives must ensure their long-term safety performance.
Although glass adhesive is also important, it does not directly bear the structural load, so the safety performance requirements are relatively low.
Sixth, the cost of use
Because structural adhesives typically require higher performance, their costs are also relatively high. In the selection, a cost-benefit analysis is carried out on a case-by-case basis.
Glass adhesives are cost-effective and suitable for common sealing needs, providing a cost-effective solution.
7. Construction technology
The construction of structural adhesives is usually more stringent, requiring professionals to operate according to the exact proportions and requirements of the construction environment.
The glass glue is relatively simple to operate, and can be extruded and used at room temperature, which is convenient and fast.
Summary:
There are obvious differences between structural adhesives and glass adhesives in terms of composition, performance, application range, performance requirements, safety, economy and construction technology. In practical applications, it is necessary to select the right product according to the specific engineering needs and requirements.