Aging Resistant UV Sealant

Neutral-Curing Structural Silicone Sealant for High UV Exposure Façade & Infrastructure Applications
Aging Resistant UV Sealant is a neutral-curing, high-performance structural silicone sealant developed for long-term sealing performance in building façades, curtain wall systems, and infrastructure expansion joints exposed to continuous ultraviolet radiation, thermal cycling, and environmental aging.
It is designed for use in high-rise curtain wall systems, structural glazing assemblies, solar installation sealing, and exterior joint protection systems where long-term elasticity retention and weather resistance are required.
This product is manufactured in accordance with international building sealant performance standards and is intended for professional construction and industrial use only.

Molecular Stability of Polysiloxane Backbone
The core performance comes from a polysiloxane (silicone) molecular structure with strong Si–O bonds, which are significantly more stable than carbon-based polymer chains. This structure helps the sealant maintain its physical properties over long service periods in outdoor environments.
Resistance to UV and Solar Radiation
Unlike organic sealants, silicone does not easily break down under UV exposure, preventing molecular chain scission. This ensures long-term elasticity and avoids embrittlement even in high-sunlight climates.
Oxidation and Weathering Durability
The material shows strong resistance to atmospheric oxygen and environmental pollutants, reducing aging caused by oxidation. As a result, it maintains stable sealing performance in urban, coastal, and industrial environments.
Thermal Cycling Stability
Silicone remains flexible under repeated temperature fluctuations, from high daytime heat to low nighttime temperatures. This prevents cracking or debonding in façade joints subjected to seasonal movement.
Surface Appearance Retention
The formulation resists surface chalking, yellowing, and discoloration over time. This helps maintain a clean façade appearance, supporting both functional sealing and architectural aesthetics.

UV & Weathering Resistance System
Formulated for long-term exposure in high solar radiation environments, including desert and tropical climates, with minimal degradation in mechanical properties.
High Movement Accommodation
Capable of accommodating ±25% to ±50% joint movement, suitable for dynamic structural façade systems and expansion joints.
Long-Term Elastic Stability
Maintains elastic recovery under repeated thermal expansion and contraction cycles without cracking or embrittlement.
Substrate Compatibility
Adheres effectively to common construction substrates including:

• Glass
• Anodized and coated aluminum
• Ceramic façade panels
• Concrete and cementitious materials
• Natural stone (with proper surface preparation)

Primer may be required depending on substrate porosity and surface condition.

Curtain Wall & Structural Glazing Systems
Used for perimeter sealing and joint sealing in high-rise façade systems where long-term weather tightness is required.
Solar Energy & Photovoltaic Systems
Applied in sealing aluminum frame joints and peripheral sealing of PV installation systems exposed to continuous UV radiation.
Building Envelope Systems
Suitable for exterior window and door sealing in high UV and temperature variation regions.
Infrastructure & Industrial Applications
Used in non-traffic structural joints, equipment enclosures, and exterior protection sealing systems.

Manufactured under ISO 9001:2015 certified quality management system.
The product is evaluated according to the following internationally recognized standards:

• ASTM C920 – Elastomeric Joint Sealants
• ASTM C719 – Joint Movement Capability
• ASTM G154 – UV Accelerated Aging Test
• ISO 11600 – Building Construction Sealants
• EN 15651 (F EXT-INT) – European façade sealant classification (reference level)

Each production batch undergoes:

• Viscosity and rheology stability testing
• Extrusion rate consistency control
• Adhesion performance verification
• Accelerated aging sample retention

Third-party testing reports (SGS / TÜV / Intertek) are available upon request for project qualification.

Non-Structural Load-Bearing Use
This product is not designed for structural bonding and should only be used for joint sealing and movement accommodation.
Not Suitable for Permanent Water Immersion
It is not recommended for continuous underwater or long-term submerged conditions, as performance may be affected.
Substrate Cleanliness Requirement
Surfaces contaminated with oil, bitumen, or other pollutants must be thoroughly cleaned before application to ensure proper adhesion.
Pre-Application Testing Recommended
Compatibility and adhesion testing is recommended before large-scale use to ensure suitable field performance.
Compliance with Engineering Standards
Joint design should follow ASTM or EN standards to ensure long-term durability and reliable system performance.

OEM & Private Label Service
We offer OEM and private label services for global distributors and construction chemical brands.
Custom Packaging & Branding
Cartridges and sausage packs can be customized with private labels and multilingual printing to support brand development.
Product Customization
Color, curing speed, and flow properties can be adjusted based on regional market requirements.
Stable Manufacturing Capacity
Automated production lines ensure consistent quality and reliable large-scale export supply.
Quality Traceability
Each production batch is fully traceable to ensure stable quality and supply chain reliability.

To support engineering procurement and project approval, we provide:

• UV aging laboratory test reports (ASTM G154 / QUV data)
• Adhesion compatibility test reports for major substrates
• MSDS / SDS safety documentation
• CE / ISO compliance certificates
• Third-party testing reports (SGS / TÜV / Intertek upon request)

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