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High Performance Silicone Structural Sealant from China Factory - Durable, Weather Resistant Sealant for Suppliers
Product Features
1
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, non-corrosive to metal, coated glass and other building materials.
3
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
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
Excellent adhesion to most building materials.
Frequently Asked Questions
Q
What does "fast curing" mean for a silicone sealant like JF-303?
Fast curing means the sealant reaches its initial set quickly after application, minimizing the window during which environmental factors — such as rain, dust, or temperature fluctuations — can distort or contaminate the sealant surface before it fully sets.
Q
Why is neutral curing important for curtain wall applications?
Neutral curing sealants do not release acetic acid or other corrosive by-products during curing. This makes JF-303 safe for use with sensitive substrates such as coated glass, anodized aluminum, and various metals commonly used in curtain wall systems.
Q
Can JF-303 handle the movement and deformation of curtain walls?
Yes. JF-303 is specifically engineered to accommodate the normal expansion, contraction, and shear deformation that curtain wall systems experience due to thermal cycling, wind loads, and structural movement — all without compromising its sealing performance.
Q
What temperature range can JF-303 withstand after curing?
After curing, JF-303 maintains its flexibility and integrity across an extreme temperature range — remaining elastic and crack-free at temperatures as low as -50°C and resisting softening or degradation at temperatures up to 150°C.
Q
Is JF-303 resistant to UV light and outdoor weathering?
Yes. JF-303 offers excellent weathering resistance, including strong resistance to UV radiation, ozone exposure, and water — making it well-suited for long-term outdoor applications such as curtain walls and structural glazing.
Q
What building materials is JF-303 compatible with?
JF-303 provides excellent adhesion to most common building materials, including glass, aluminum, stainless steel, coated metals, concrete, and various architectural substrates — making it a versatile choice for a wide range of construction and facade sealing projects.