| Customization: | Available |
|---|---|
| Formula: | Mixture |
| Application: | Construction, Household,, Industrial |
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DOWSIL SJ668 Sealant is a two-part neutral cure silicone structural sealant, which is specially designed for the structural assembly of highperformance building curtain wall units
FEATURES
• Compliant to GB16776-2005 (Specifications of Silicone Structural Sealant for Buildings)
• Excellent adhesion to most common building substrates, such as glass, coated glass, reflective coatings, aluminum, and metals
• Outstanding temperature resistance: -50~150°C
• Good mechanical performance
• Fast curing
• Resistant to ozone and UV radiation
APPLICATIONS
DOWSIL SJ668 Sealant is designed for use in structural applications such as factory glazing and curtainwall production.
| Test Standard | Test Item | Unit | Value |
| As supplied - DOWSIL SJ668 Sealant Base | |||
| Color and Physical Form | Grey viscous paste | ||
| Specific Gravity | 1.36 | ||
| As supplied - DOWSIL SJ668 Sealant, Curing Agent | |||
| Color and Physical Form | Thick black paste | ||
| Specific Gravity | 1.08 | ||
| Color and Physical Form | Clear paste | ||
| Specific Gravity | 1.00 | ||
| After catalyzed and mixed: | |||
| Color and Physical Form | Black non-sagging paste | ||
| Specific Gravity | 1.34 | ||
| Color and Physical Form | Grey non-sagging paste | ||
| Specific Gravit | 1.32 | ||
| Corrosivity | Non-corrosive | ||
| CTM0092A1 | Snap Time (25°C/77°F, 50%R.H) | Min. | 40 to 70 |
| GB134771 | Shore Hardness | 40 | |
| 14 Days after cure n(25°C, 50%R.H.) - Test on H-shaped Specimen | |||
| GB13477 | Tensile Strength (room temperature) | MPa | 1.0 |
| GB13477 | Tensile Strength (90°C) | MPa | 0.9 |
| GB13477 | Tensile Strength (-30°C) | MPa | 1.3 |
| GB13477 | Tensile Strength (water immersion) | MPa | 0.9 |
| GB13477 | Tensile Strength (water-UV) | MPa | 0.8 |
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