Silicone structural sealants can withstand a certain amount of force, and silicone weather-resistant adhesives are mainly used for waterproof sealing. Silicone structural adhesive can be used for sub-frames and can withstand certain tension and gravity. Silicone weather-resistant adhesive is only used for caulking and cannot be used for structural sealing.
Silicone Building Sealant is a neutral curing high quality building silicone weatherproof sealant. Excellent weathering resistance, high and low temperature resistance -50°C+150°C, good adhesion, it can be extruded and used in a wide range of climate conditions, and quickly reacts with moisture in the air, curing into a durable , High performance and elastic silicone sealant, can resist natural erosion such as oxygen and odor, ultraviolet rays and rain. Mainly used for caulking and sealing of doors, windows and architectural decoration.
Among the main technical indicators of silicone weather-resistant sealants, the sag, extrudability, and surface drying time characterize the construction performance. The performance of the cured weather-resistant sealant is mainly the displacement capacity and the mass loss rate. The mass loss rate of weather-resistant adhesives is equivalent to the thermal weight loss of structural adhesives. It is mainly to investigate the performance changes of weather-resistant adhesives after long-term use. The higher the mass loss rate, the more serious the performance decline after long-term use.
The main function of the silicone weather-resistant sealant is to seal the joints between the plates. Since the plates are often affected by temperature changes and deformation of the main structure, the joint width will also change. This requires the weather-resistant adhesive to have a good ability to withstand joint displacement, and will not crack under the condition of long-term changes in the joint width. different.
Silicone Structural Sealant is a one component, neutral curing, specially designed for the bonding assembly of glass structures in building curtain walls. It can be easily extruded and used in a wide range of temperature conditions. Rely on moisture in the air to cure into excellent, durable high modulus, high elasticity silicone rubber. The product does not need a primer to the glass, and can produce excellent adhesion.
Structural adhesive refers to high strength (compressive strength> 65MPa, steel-steel positive tensile bonding strength> 30MPa, shear strength> 18MPa), can withstand large loads, and is resistant to aging, fatigue, corrosion, and performance within the expected life. Stable, suitable for strong structural bonding. Non-structural adhesives have low strength and poor durability, and can only be used for bonding, sealing and fixing of ordinary and temporary properties, and cannot be used for structural bonding.
Post time: Sep-29-2022