High Performance Silicone Structural Sealant from China Suppliers - Durable Factory Solution for Structural Glazing
1
⚡ Fast Curing
Fast curing, which can greatly reduce the adverse effects of bad weather on the surface of the sealant during curing (such as surface deformation).
Fast curing, which can greatly reduce the adverse effects of bad weather on the surface of the sealant during curing (such as surface deformation).
2
🛡 Neutral Curing
Neutral curing, non-corrosive to metal, coated glass and other building materials.
Neutral curing, non-corrosive to metal, coated glass and other building materials.
3
🌦 Excellent Weathering Resistance
For the normal expansion and shear deformation of the curtain wall, this product can keep the performance unchanged. Excellent weathering resistance, heat and cold resistance, UV resistance, ozone resistance and water resistance.
For the normal expansion and shear deformation of the curtain wall, this product can keep the performance unchanged. Excellent weathering resistance, heat and cold resistance, UV resistance, ozone resistance and water resistance.
4
🌡 High & Low Temperature Resistance
Excellent high and low temperature resistance. After curing, it will not be brittle, hardened or cracked at -50°C, and will not soften or degrade at 150°C, and maintain good elasticity.
Excellent high and low temperature resistance. After curing, it will not be brittle, hardened or cracked at -50°C, and will not soften or degrade at 150°C, and maintain good elasticity.
5
🔗 Superior Adhesion
Excellent adhesion to most building materials.
Excellent adhesion to most building materials.
❓ Frequently Asked Questions
Q
How fast does JF-303 sealant cure, and why does curing speed matter?
A
JF-303 features a fast curing formulation, which significantly reduces the window of exposure to adverse weather conditions during the curing process. This minimizes the risk of surface deformation and ensures a consistent, high-quality finish even in challenging environments.
Q
Is JF-303 safe to use with coated glass and metal substrates?
A
Yes. JF-303 uses a neutral curing system, which means it does not release acidic or alkaline by-products during curing. This makes it completely non-corrosive to metal frames, coated glass, and other sensitive building materials commonly used in curtain wall construction.
Q
What temperature range can JF-303 withstand after curing?
A
Once fully cured, JF-303 maintains excellent performance across an extreme temperature range. It remains flexible and crack-free at temperatures as low as -50°C, and does not soften or degrade at temperatures up to 150°C, ensuring long-term durability in both cold and hot climates.
Q
Can JF-303 handle the movement and deformation of curtain wall systems?
A
Absolutely. JF-303 is specifically engineered to accommodate the normal expansion and shear deformation that occurs in curtain wall systems due to thermal changes and structural movement. Its high elasticity ensures the sealant maintains full performance without cracking or losing adhesion over time.
Q
How does JF-303 perform against UV exposure, ozone, and weathering?
A
JF-303 offers outstanding resistance to UV radiation, ozone, and general weathering. This makes it an ideal choice for exterior applications where the sealant is continuously exposed to sunlight, rain, and environmental pollutants, ensuring a long service life without significant degradation.
Q
What types of building materials is JF-303 compatible with?
A
JF-303 provides excellent adhesion to a wide range of building materials, including glass, aluminum, steel, stone, concrete, and most coated surfaces. Its broad compatibility makes it a versatile solution for various construction and glazing applications without the need for extensive surface primers in most cases.








