100% silicone formulation delivering exceptional UV resistance and long-term durability in exterior structural glazing applications.
Optically clear, non-yellowing transparency that maintains aesthetic integrity over decades of service exposure.
High modulus and excellent adhesion to common architectural substrates—including glass, anodized aluminum, and powder-coated metals—without primers.
Meets ASTM C1184 and ISO 11600 Class S25HM performance requirements for structural silicone sealants.
Low volatile organic compound (VOC) content, compliant with stringent global environmental and indoor air quality standards.
Structural glazing systems for curtain walls and façades in commercial high-rise buildings.
Bonding of insulating glass units (IGUs) in load-bearing spandrel and vision areas.
Point-supported glass assemblies including spider fittings and cable-net facades.
Seismic and wind-load resistant perimeter anchorage of architectural glazing.
| Chemical Type | Acetoxy-cure silicone polymer |
| Product Form | Single-component, ready-to-use paste |
| Appearance | Transparent, homogeneous gel |
| Primary Applications | Structural glazing, façade bonding, IGU edge sealing |
| Key Features | UV-stable, primerless adhesion, non-yellowing, high-modulus |
| Benefits | Long service life (>30 years), design flexibility, reduced installation labor |
| Storage Life (unopened) | 12 months at ≤25°C in original sealed packaging |
| Curing Mechanism | Moisture-curing at ambient temperature |
Q1: What substrates is DOWSIL TSSA adhesive compatible with?
A: DOWSIL TSSA bonds well to a broad range of common architectural substrates including anodized aluminum, stainless steel, coated metals, glass (including low-iron and laminated), and many rigid plastics—without requiring primers in most standard applications.
Q2: Is DOWSIL TSSA suitable for structural glazing applications?
A: Yes—DOWSIL TSSA is specifically formulated as a transparent silicone structural sealant meeting key performance requirements for structural glazing, including high tensile strength, excellent elongation, and long-term durability under UV exposure and thermal cycling.
Q3: How does DOWSIL TSSA perform in weathering and UV resistance tests?
A: As a neutral-cure, addition-cure silicone, DOWSIL TSSA exhibits exceptional resistance to UV radiation, ozone, and extreme temperature fluctuations—maintaining transparency, adhesion, and elasticity over extended service life without chalking or yellowing.
Q4: Can DOWSIL TSSA be painted or overcoated after curing?
A: DOWSIL TSSA is not recommended for painting or overcoating, as most conventional coatings do not adhere reliably to cured silicone surfaces. For aesthetic integration, it is best used in its natural transparent state or selected in coordination with compatible architectural finishes.
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E-mail: wangxingqiang@ericwchem.com
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Building A1, Jiete Industrial Park, Huangpu District, Guangzhou City, Guangdong Province, China
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