In winter, the temperature drops sharply and the temperature difference varies greatly, with cold winds carrying moisture continuously invading the curtain wall. As the "face" and protective barrier of buildings, the quality of curtain wall sealing and bonding directly determines the safety, energy-saving effect, and service life of buildings.
The temperature difference causes thermal expansion and contraction of glass and aluminum materials, and ordinary sealant has insufficient strength to withstand periodic stress, which can easily lead to adhesive loosening and displacement. In severe cases, it can cause the curtain wall panel to shake, posing a safety hazard.
Rainy and rainy weather can easily cause moisture to seep into the interior of the curtain wall. Seals with poor water resistance will age and deteriorate, lose their sealing performance, and may corrode metal components, shorten the lifespan of curtain walls, and increase maintenance costs.
Low ozone concentration and strong ultraviolet radiation in autumn and winter, combined with industrial pollutants, can accelerate the oxidation and aging of ordinary sealants, leading to surface cracking, hardening, and complete loss of sealing and bonding functions.
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Three core application scenarios
1 New large-scale curtain wall project
Suitable for large-scale new curtain wall projects such as office buildings and commercial centers, used for sealing and bonding between panels, ensuring structural stability and waterproof performance, laying the foundation for building safety.
Maintenance and repair of existing curtain walls
For existing curtain walls with aging and cracking sealant, cleaning the failed sealant and filling it with Genesis CSJ-903 curtain wall matching silicone weather resistant sealant can restore the sealing performance, solve the problem of air and water leakage, extend the life of the curtain wall, and reduce maintenance costs.
2 Application of Special Curtain Wall Design
Adapting to the design of irregular and complex structural curtain walls, it fills irregular gaps with good fluidity and forms a high-strength sealing layer after curing, balancing design aesthetics and sealing reliability.
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Four step standardized construction method
Standardized construction is the key to leveraging the performance of silicone weather resistant adhesive for the Genesis 903 curtain wall. The core consists of the following four steps:
1 Pre-construction preparation
Before construction, specialized cleaning agents should be used to remove dust, oil stains, and other impurities from the bonding surface. After drying, the surface should be ensured to be dry and clean. The construction environment temperature should be controlled between 5 ℃ -40 ℃, with moderate humidity to ensure the normal curing of the sealant.
2 Key points of glue application operation
Use a glue gun to apply glue at a constant speed at a 45 ° angle, control the amount of glue to ensure that the glue seam is uniform, continuous, and full, avoid problems such as bubbles and broken glue, and ensure sealing strength.
After repairing and applying glue to the joint, use specialized tools to promptly repair the joint to ensure a smooth and even surface, a tight fit with the curtain wall, and improved aesthetics and waterproof effect.
3 Precautions for curing and maintenance
During the curing period, the construction site should be kept ventilated and dry to avoid external collisions and rainwater erosion. At room temperature, the initial curing strength is reached in 4 days, and the optimal strength is reached in 21 days. The curing time needs to be extended in low-temperature environments, and force testing is prohibited before curing.
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Choose the right sealant to make the curtain wall "as new as new for ten years"
CSJ-903 curtain wall is equipped with silicone weather resistant adhesive, which provides excellent weather resistance, strong sealing, and good bonding strength to comprehensively protect the safety of the curtain wall. Adapting to new construction projects, existing curtain wall repairs, and special designs is a reliable choice for addressing the challenges of autumn and winter.
Choosing CSJ-903 curtain wall with silicone weather resistant adhesive will strengthen the safety defense line of the curtain wall. Click on the message to obtain product testing reports, construction cases, and technical parameters. Contact customer service to customize exclusive solutions and jointly safeguard building quality.
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