• Item Name: LOCTITE® SI 5039™
• Manufacturer: Henkel
• Technologies: Silicone (Acetoxy dual cure)
• Color: Light yellow, translucent
• Cure Type: Ultraviolet (UV)/Visible light with secondary moisture cure
• Package Size: Contact to Techniq VN for details.
• Shelf Life: Contact to Techniq VN for details.
LOCTITE® SI 5039™ is a one-component, acetoxy dual-cure silicone sealant that provides deep light cure capability using ultraviolet (UV) and visible light, with secondary moisture curing for shadowed areas. It forms a high-strength rubber for gasketing, bonding, or sealing applications. The sealant is semi-flowable and facilitates continuous bead formation.
| Property | Value |
|---|---|
| Specific Gravity @ 25°C | 1.05 |
| Solids Content (%) | 96.8 |
| Flow, ISO 7390 (mm) | 15.2 |
| Extrusion Rate (g/min) | 150 to 320 |
| Skin Over Time (min) | ≤20 |
| Tack Free Time (sec) | ≤20 |
| Property | Value |
| Shore Hardness (A) | 32 to 48 |
| Elongation at Break (%) | ≥150 |
| Tensile Strength (N/mm²) | ≥1.0 |
| Tear Strength (N/mm) | 8.3 |
| Volume Shrinkage (%) | 0.44 |
| Linear Shrinkage (%) | 0.15 |
| Substrate Combination | Strength (N/mm²) | Strength (psi) |
| Aluminum to Glass | 0.9 | 125 |
| Steel to Glass | 1.1 | 155 |
| Glass to Glass | 2.1 | 305 |
| Polycarbonate to Glass | 2.9 | 420 |
| PVC to Glass | 3.6 | 520 |
| Nylon to Glass | 3.9 | 560 |
| Property | Value |
| Volume Resistivity (Ω·cm) | 6.7×10¹⁴ |
| Dielectric Breakdown Strength (kV/mm) | 19.1 |
| Dielectric Constant (1 kHz) | 2.88 |
| Dissipation Factor (1 kHz) | 0.008 |
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Techniq Vietnam provides end-to-end materials and process solutions, integrating world-class technologies in adhesives, soldering, and thermal management.
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