LOCTITE® 493 is a general-purpose cyanoacrylate adhesive, specifically designed for bonding metal substrates but also suitable for rubbers and plastics. It is a single-component, very low-viscosity adhesive that cures upon exposure to humidity.
Key Features:
| Property | Value |
|---|---|
| Specific Gravity @ 25°C | 1.1 |
| Viscosity (Cone & Plate, 25°C) | 1 to 4 mPa·s |
| Viscosity (Brookfield, 25°C) | 1 to 10 mPa·s |
| Vapor Pressure, hPa | <1 |
| Property | Value |
|---|---|
| Coefficient of Thermal Expansion | 100×10⁻⁶ K⁻¹ |
| Thermal Conductivity | 0.1 W/(m·K) |
| Volume Resistivity (IEC 60093) | 2×10¹⁵ to 10×10¹⁵ Ω·cm |
| Surface Resistivity (IEC 60093) | 10×10¹⁵ to 80×10¹⁵ Ω |
| Dielectric Breakdown Strength | 25 kV/mm |
Fixture Time @ 22°C / 50% RH:
Cure Speed is Affected By:
| Substrate | Strength (N/mm²) | Strength (psi) |
|---|---|---|
| Steel (grit blasted) | 20 to 30 | 2,900 to 4,350 |
| Aluminum (grit blasted) | 15 to 22 | 2,175 to 3,190 |
| Zinc Dichromate | 4 to 12 | 580 to 1,740 |
| ABS / PVC | 6 to 20 | 870 to 2,900 |
| Polycarbonate | 5 to 20 | 725 to 2,900 |
| Neoprene / Nitrile | 5 to 15 | 725 to 2,175 |
| Condition | % Strength Retention |
|---|---|
| Motor Oil (40°C, 1000h) | 100% |
| Gasoline (22°C, 1000h) | 95% |
| Isopropanol / Ethanol (22°C, 1000h) | 95-100% |
| Freon TA / Trichloroethane (22°C, 1000h) | 95% |
| Heat & Humidity (95% RH, 40°C, 1000h) | 40% |
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Techniq Vietnam provides end-to-end materials and process solutions, integrating world-class technologies in adhesives, soldering, and thermal management.
Through partnerships with leading global brands, we deliver high-value materials, expert consulting, and optimized supply chains ensuring timely delivery, efficiency, and sustainable growth for our clients.
At Techniq, our mission is to connect cutting-edge materials, processes, and equipment with customer needs, enabling efficiency, reliability, and long-term value creation.
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