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Curtain Wall "Guardian": Genesis CSJ - 903 Silicone Weather - Resistant Sealant for Curtain Wall

2026-01-16

In winter, the temperature drops suddenly and the temperature difference is significant. The cold wind carries moisture and continuously attacks the curtain wall. As the "face" and protective barrier of the building, the sealing and bonding quality of the curtain wall directly determines the building's safety, energy - saving effect, and service life.



1

The temperature difference causes the glass and aluminum materials to expand and contract thermally. The strength of ordinary sealants is insufficient, and they are difficult to withstand periodic stress. Bonding looseness and displacement are prone to occur. In severe cases, it may cause the curtain wall panels to shake, posing a safety hazard.






2

Rainy weather makes it easy for moisture to penetrate into the interior of the curtain wall. Sealants with poor water resistance will age and deteriorate.Lose their sealing performance and may also corrode metal components, shortening the curtain wall's service life and increasing maintenance costs.




3

In autumn and winter, the ozone concentration is low and the ultraviolet rays are strong. Coupled with industrial pollutants,It will accelerate the oxidation and aging of ordinary sealants, leading to surface cracking and hardening, and completely losing the sealing and bonding functions.





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Three core application scenarios




New large - scale curtain wall projects


Suitable for large - scale new curtain wall projects such as office buildings and commercial centers. It is used for sealing and bonding between panels to ensure structural stability and waterproof performance, laying a foundation for building safety.


Maintenance and repair of existing curtain walls


For existing curtain walls with aging and cracked sealants, after cleaning the失效sealant, filling with Genesis CSJ - 903 silicone weather - resistant sealant for curtain walls can restore the sealing performance, solve the problems of air and water leakage, extend the curtain wall's service life, and reduce maintenance costs.


Special curtain wall design applications


Suitable for the design of curtain walls with special shapes and complex structures. With good fluidity, it can fill irregular gaps and form a high - strength sealing layer after curing, taking into account both design aesthetics and sealing reliability.





2


Four - step standardized construction method



  • Preparation before construction

Before construction, special cleaners should be used to remove impurities such as dust and oil stains on the bonding surface. After drying, ensure that the surface is dry and clean. The construction environment temperature should be controlled between 5℃ - 40℃, and the humidity should be moderate to ensure the normal curing of the sealant.


  • Key points of sealant application operation

Use a caulking gun to apply the sealant evenly at a 45° angle. Control the amount of sealant to ensure that the sealant joint is uniform, continuous, and full, avoiding problems such as air bubbles and broken sealant to ensure the sealing strength.


  • Sealant joint trimming

After applying the sealant, use special tools to trim the sealant joint in time to ensure that the surface is smooth and flat and closely attached to the curtain wall, improving the aesthetics and waterproof effect.


  • Precautions for curing and maintenance

During the curing period, the construction site should be kept ventilated and dry, and external force collision and rainwater scouring should be avoided. At normal temperature, the initial curing strength can be reached in 4 days, and the maximum strength can be reached in 21 days. In a low - temperature environment, the curing time needs to be extended, and stress testing is prohibited before curing.




3


Choose the right sealant to make the curtain wall "as good as new for ten years"



Genesis CSJ - 903 silicone weather - resistant sealant for curtain walls protects the curtain wall safety in all aspects with excellent weather resistance, strong sealing performance, and good bonding strength.Suitable forNew projects,Maintenance of existing curtain wallsandSpecial design scenarios, and it is a reliable choice to deal with the challenges in autumn and winter.Choosing Genesis CSJ - 903 silicone weather - resistant sealant for curtain wallsmeans strengthening the safety defense line of the curtain wall.Click to leave a message to obtain product test reports, construction cases, and technical parameters. Contact the customer service to customize exclusive solutions and jointly protect building quality.




Product recommendation this week





Genesis CSJ - 903 silicone weather - resistant sealant for curtain walls



Product display







Sealant strip display



Scope of application


Scope of application:


✅ Outdoor curtain wall joint filling and sealing;

✅ Sealing for the installation of various glass and aluminum doors and windows projects;

white_check_mark: Tile and roof sealing;

white_check_mark: Suitable for industrial and construction engineering applications;

white_check_mark: Gap filling and structural sealing for various materials.


Friendly reminder:

Before construction, ensure that the bonding surface is clean and dry, and the temperature of the construction environment meets the requirements; for different materials, it is recommended to conduct a compatibility test first to ensure the construction effect.


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