Structural Silicone Sealant 991

JR-Structural Silicone is a one-component neutral-curing silicone structural sealant with excellent adhesion and structural strength. It is designed for structural bonding of glass, stone, aluminum curtain walls and metal structures.

Product Type

Silicone Structural Sealant

Component

One-Component

Cure Type

Neutral Curing

Temperature Range

-50°C to 150°C

*Motor detailed config can be customized according to customer's requests, like voltage, speed, as well as shaft length and shape...

High-Performance Structural Silicone Sealant

JR-Structural Silicone is a premium one-component, neutral-curing structural sealant that delivers unmatched bonding strength for critical architectural applications. Developed for glass, stone, aluminum curtain walls, skylights, and metal structures, it adheres firmly to most building materials without primer. Its non-corrosive formula protects sensitive metal and coated glass surfaces, while its outstanding weather resistance ensures over 25 years of reliable service from -50°C to 150°C. With high movement capability and superior structural integrity, JR-Structural Silicone is the trusted choice for modern architectural glazing.

Why Choose Firestop Sealant?

High Structural Strength

Provides excellent adhesion and structural strength for demanding bonding applications.

Multi-Material Bonding Capability

Suitable for bonding glass, stone, aluminum curtain walls, glass roofs and metal structures.

Strong Weathering Resistance

Maintains reliable performance under long-term outdoor exposure with excellent weather resistance.

Long Service Life

Provides more than 25 years of service life under general environmental conditions.

Wide Temperature Performance

Maintains elasticity and strength across temperatures from -50°C to 150°C.

High Movement Capability

Allows structural movement while maintaining excellent sealing integrity and bonding reliability.

Applications

JR-Structural Silicone 991 is designed for structural bonding applications requiring high adhesion, durability and long-term performance across architectural and industrial structures.

Glass Curtain Wall Bonding:Used for structural bonding and glazing of glass curtain walls, providing strong adhesion and structural stability.
Semi-Hidden Frame Curtain Walls:Suitable for semi-hidden frame curtain wall engineering where structural integrity and durable sealing are essential.
Fully Hidden Frame Curtain Walls:Supports fully hidden frame curtain wall systems requiring reliable structural bonding and long-term weather resistance
Industrial Structural Bonding:Applied in industrial bonding projects and other curtain wall structures requiring strong and durable adhesive performance.

Need the Right Solution for Your Project?

Contact our technical team for product recommendations, samples, customization support and professional solutions tailored to your application requirements.

Property	JR-Structural Silicone
Chemistry	Silicone
Component	One-Component
Cure System	Neutral
Service Life	>25 Years
Temperature Range	-50°C to 150°C

Property

JR-Structural Silicone

Chemistry

Silicone