• Item Name: LOCTITE® 5083™
• Manufacturer: Henkel
• Technologies: Acetoxy silicone, Silicone technology
• Color: Translucent paste
• Cure Type: Ultraviolet (UV) light with secondary moisture cure
• Package Size: Contact to Techniq VN for details.
• Shelf Life: Contact to Techniq VN for details.
LOCTITE® 5083™ is a one-component, UV-curable acetoxy silicone adhesive in a translucent paste form. It is thixotropic, reducing migration after application, and develops secondary cure via moisture in shadowed areas. The product offers high-speed production curing and high-strength adhesion, suitable for potting, coating, gasketing, and sealing across diverse substrates.
Potting, coating, and sealing of automotive, electronic, military, and industrial components
Adheres to metals, wood, glass, plastics, and rubber
Electric motor balancing applications
Uncured Material
| Property | Value |
|---|---|
| Specific Gravity @ 25 °C | 1.12 |
| Solids / Non-Volatile Content | ≥95% |
| Flash Point | See MSDS |
| Flow, ISO 7390 | 0 mm |
| Extrusion Rate (0.6 MPa, 15 s, 25 °C) | 130–170 g/min |
| Cure Method | UV light; moisture for shadowed areas |
| Surface Tack Free Time | ~14 minutes |
| Depth of Cure (shadowed areas) | ≤6 mm (24 h) |
Cured Material (Cured 60 sec @ 40 mW/cm² + 7 days @ 22 °C / 50% RH)
| Property | Value |
|---|---|
| Coefficient of Thermal Expansion | 2.28×10⁻⁴ K⁻¹ |
| Water Absorption (24 h) | 0% |
| Shore Hardness (Durometer A) | 45–65 |
| Elongation at break | ≥170% |
| Tensile Strength | ≥3.1 N/mm² (≥450 psi) |
| Tear Strength | 9.4 N/mm (50 lb/in) |
| Shrinkage | 1.5% |
| Water Vapor Transmission Rate | 0.395 g/(h·m²) |
| Compression Set | 14–34% (22–100 °C, 70 h) |
| Dielectric Constant / Dissipation Factor | 100 Hz: 2.93 / 0.0014, 100 kHz: 2.8 / 0.0038 |
| Volume Resistivity | 9.7×10¹⁵ Ω·cm |
| Dielectric Breakdown Strength | 25 kV/mm |
| Lap Shear Strength (various substrates) | 0.24–1.9 N/mm² (35–275 psi) |
| 180° Peel Strength | Aluminum / Steel: <0.2 N/mm (<1 lb/in), Glass: 10 N/mm (57 lb/in) |
| Heat Aging (% initial strength at RT) | Maintains 100% up to 5 weeks at 150–200 °C |
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