Silicone Structural Sealant 500ml Black

SS521 Silicone Structural Sealant

SS521 silicone structural sealant is primarily used for structural bonding and sealing in glass curtain walls, aluminum panel curtain walls, glass skylights, and metal structural projects. It is also suitable for secondary sealing of insulating glass and has a wide range of applications in both construction and industrial fields.

This is a single-component, neutral-curing silicone structural sealant that offers excellent structural bonding performance, weather resistance, high and low temperature resistance, and good adhesion to most building materials.

Main Applications

• Curtain Wall Projects: Designed for structural bonding and sealing of glass curtain walls, aluminum panel curtain walls, and glass skylights.

• Metal Structural Engineering: Used for structural bonding and sealing of metal structural components.

• Insulating Glass: Suitable for secondary sealing of insulating glass.

• Other Construction and Industrial Uses: Applicable for various structural bonding and sealing requirements in construction and industry.

Key Features

• Structural Bonding Performance: Provides excellent structural bonding strength to effectively withstand structural loads.

• Weather Resistance: Outstanding resistance to UV, ozone, and water, ensuring long-term durability.

• High & Low Temperature Resistance: Maintains strength and elasticity under extreme temperatures (from -50°C to 150°C).

• Neutral Curing: Neutral cure formulation that is non-corrosive to metals, coated glass, and other building materials.

• Good Adhesion: Excellent adhesion to most common building materials.