Low Modulus UV Resistant Sealant

Low Modulus UV Resistant Sealant

One-component neutral curing silicone sealant designed for high-movement façade systems, long-term UV exposure environments, and specification-driven building envelope engineering applications.
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Low Modulus UV Resistant Silicone Sealant

 

Façade Engineering-Grade Movement Accommodation & UV Stability Sealant
One-component neutral curing silicone sealant designed for high-movement façade systems, long-term UV exposure environments, and specification-driven building envelope engineering applications.

 

ENGINEERING PURPOSE

 

Modulus Compatibility
Sealant must match façade movement. This product keeps flexibility under thermal and wind load stress.
UV Resistance
Designed to resist UV aging and maintain performance in long-term outdoor exposure.
Adhesion Stability
Provides strong bonding when substrates are properly cleaned and prepared.
Movement Fatigue Resistance
Handles repeated expansion and contraction without cracking or failure.
Joint Design Dependence
Performance depends on correct joint design and proper engineering application.

 

VERIFIED FIELD APPLICATION EXPERIENCE

 

This product is engineered for real-world façade environments, including:

  • High-rise curtain wall systems in high UV regions (Middle East, South Asia)
  • Coastal building envelopes exposed to long-term salt-spray corrosion
  • Cold climate façade systems with repeated freeze–thaw cycling
  • Large-span structural glazing and aluminum composite façade systems
  • Infrastructure buildings requiring long service-life sealing performance

 

Performance Data

 

Property

Value

Chemical Type

Neut

Elastic Modulus

Low modulus elastomer

Density

1.30 – 1.40 g/ml

Skin Formation Time

10 – 25 min

Cure Rate

2 – 3 mm / 24h

Shore A Hardness

20 – 35

Elongation at Break

≥ 400%

Movement Capability

±25% to ±50%

Service Temperature

-50°C to +150°C

UV Resistance

No cracking / no yellowing after ≥3000–5000h UV aging

 

TESTING STANDARDS & CONDITIONS

 

Performance validated under internationally recognized standards:

  • ASTM C920 – Elastomeric Joint Sealants
  • ISO 11600 – Sealant Classification System
  • EN 15651 – Façade Sealant Performance Standard
  • ASTM G154 – UV accelerated weathering test

 

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Testing Condition Transparency

 

UV and aging performance is evaluated under controlled laboratory accelerated conditions equivalent to long-term outdoor exposure simulation.

 

THIRD-PARTY VERIFICATION

 

Independent testing and verification available upon request:

  • SGS laboratory performance testing
  • TÜV façade system certification
  • Intertek compatibility validation

Each project can be supported with pre-approval adhesion and compatibility testing reports for engineering submission.

 

PERFORMANCE ENGINEERING ADVANTAGES

 

High Movement Accommodation System
Designed to maintain elasticity under wind load, thermal expansion, and structural settlement. It helps prevent cracking and permanent deformation during long-term cyclic movement.
Extreme Climate Resistance System
Performs reliably in harsh environments such as strong UV, coastal salt exposure, freeze–thaw cycles, and high humidity. The sealant maintains stability without chalking, yellowing, or brittleness.
Façade Material Compatibility System
Suitable for bonding with glass, aluminum, coated panels, concrete, and natural stone. Primer use depends on substrate condition and ensures durable adhesion in façade applications.

 

APPLICATION

 

Curtain Wall Systems
Used for perimeter sealing and movement joints in aluminum–glass curtain wall systems. It ensures long-term weather resistance and flexibility under façade movement.
Structural Glazing Systems (Secondary Seal)
Provides durable weatherproof sealing in structural glazing assemblies. It maintains performance under continuous thermal and mechanical stress.
Expansion & Movement Joints
Suitable for sealing building envelope joints in concrete, steel, and composite structures. Designed to accommodate continuous structural movement without failure.
Infrastructure & Critical Buildings
Applied in airports, transport hubs, high-rise buildings, and coastal industrial facilities. Supports long-term durability in demanding infrastructure environments.

 

FAILURE PREVENTION ENGINEERING SYSTEM

 

Field-Identified Failure Modes in Façade Sealants
Common façade sealant failures include modulus mismatch, UV degradation, poor substrate preparation, incorrect joint design, and insufficient movement capacity. These issues typically lead to stress concentration, cracking, or adhesion loss over time.
Engineered Risk Mitigation Strategy
The system is designed to minimize failure risk through optimized low-modulus stress distribution and high elongation stability (≥400%). It also combines UV-resistant molecular structure, controlled deformation absorption, and balanced adhesion across different substrates.

 

QUALITY ASSURANCE & TRACEABILITY SYSTEM

 

01/

Batch-Level Quality Control System
Each production batch is tested for:
●Tensile strength and elongation performance
●Adhesion pull-off strength verification
●UV aging resistance (3000–5000h equivalent)
●Thermal cycling durability
●Movement capability consistency

02/

Full Traceability & Documentation System
●Batch number traceability per shipment
●Certificate of Analysis (COA) per production lot
●Raw material traceability system
●Quality consistency control system across production batches

03/

FACTORY & SUPPLY CHAIN RELIABILITY
Stable large-scale production capability for export markets
●Continuous batch manufacturing quality control system
●OEM / private label supply for global distributors
●Engineering technical support for façade system integration

04/

THIRD-PARTY VALIDATION & PROJECT APPROVAL SUPPORT
Available verification support includes:
●SGS laboratory test reports
●TÜV façade system performance certification
●Intertek compatibility validation reports

 

COMPETITIVE ENGINEERING POSITIONING

 

This product is positioned as a façade-grade engineering alternative to:
●Dow Corning structural silicone systems
●Sika façade sealant series
●Momentive construction silicone products

Engineering Positioning Advantages:
●Optimized low modulus stress control system
●High elongation recovery stability
●UV-resistant façade exposure performance
●OEM customization for global distribution networks
●Competitive cost-to-performance ratio

 

 

PACKAGING & GLOBAL SUPPLY SYSTEM

 

Designed to support industrial-scale projects and global distribution requirements. Packaging is optimized for ease of application, transport safety, and long-term storage stability.
Standard Packaging Options
Available in 300ml cartridges, 600ml sausage packs, and 200L industrial drums. These formats support both on-site application and large-volume engineering supply chains.

 

OEM / PRIVATE LABEL CAPABILITY

 

Brand Customization Support
We support private label branding, including logo and product naming. This helps distributors build their own brand identity.
Packaging Design Services
We offer flexible packaging options like cartridge, sausage, and drum. Design support is available for export and labeling needs.
Color Matching & Customization
Standard colors include black, white, and grey, with custom colors available. This ensures better match with project design requirements.
Formulation Adjustment for Project Needs
We can adjust product performance based on project requirements. This ensures better compatibility with different substrates and environments.

 

COMMERCIAL PROCUREMENT CONDITIONS

 

MOQ: Flexible (project-based support available)
Lead Time: 7–15 working days (standard production)
Shelf Life: 12–18 months under proper storage conditions
Export Documentation: TDS / MSDS / COA / Test reports available
Global logistics support available

WHY GLOBAL ENGINEERS AND BUYERS CHOOSE THIS SYSTEM

 

Engineered for façade failure prevention at system level
Verified compliance with international construction standards
Stable batch-to-batch manufacturing consistency
Suitable for extreme climate engineering environments
OEM-ready for global distribution networks
Pre-project technical validation support available

 

 

FAQ

Q: Is this suitable for structural glazing?

A: Yes, for secondary sealing applications depending on façade system engineering design.

Q: What is the service life?

A: Typically 10–20 years, depending on environmental exposure and installation quality.

Q: Can it be used in coastal environments?

A: Yes. Engineered for high humidity, UV exposure, and salt-spray conditions.

Q: Does it require primer?

A: Primer requirement depends on substrate type and must be validated via adhesion testing.

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