1. Product Overview LOCTITE® AA 3342™ is a one-component modified acrylic adhesive designed for fast fixture speed on activated surfaces. It offers high tensile strength while maintaining impact and high-temperature resistance. The adhesive is particularly suited for bonding ferrites into motor cans and structural bonding of small rigid parts of dissimilar materials.
2. Applications
3. Typical Properties
| Property | Value |
|---|---|
| Uncured Properties | |
| Appearance | Dark yellow/brown liquid |
| Specific Gravity @ 25°C | 1.085 |
| Viscosity (Brookfield – HBT, 25°C) | 80,000 to 230,000 mPa·s (spindle TB, 2.5 rpm) |
| Viscosity (Brookfield – HBT, 25°C) | 50,000 to 130,000 mPa·s (spindle TB, 20 rpm) |
| Cure Method | Activator or heat |
| Property | Value |
| Curing Performance | |
| Fixture Time on Grit-Blasted Mild Steel (Activator 7380™ on one side) | ≤200 sec |
| Fixture Time on Steel (0.05 mm gap) | ≤3.5 min |
| Fixture Time on Steel (0.5 mm gap) | 10-15 min |
| Heat Cure Conditions | 120°C for 30 min |
| Property | Value |
| Cured Properties (30 min @ 120°C, 0.5 mm film, Activator 7380™ on both sides) | |
| Glass Transition Temperature (Tg) | 80°C |
| Thermal Expansion Coefficient | 70×10⁻⁶ K⁻¹ |
| Thermal Conductivity | 0.3 W/(m·K) |
| Shore Hardness (Durometer D) | 71 |
| Tensile Strength (ISO 527-3) | 9.9 N/mm² (1,435 psi) |
| Tensile Modulus (ISO 527-3) | 478 N/mm² (69,000 psi) |
| Elongation at Break | 2.8% |
| Property | Value |
| Electrical Properties (Cured for 24 hours @ 22°C) | |
| Volume Resistivity (IEC 60093) | 18×10¹⁴ Ω·cm |
| Surface Resistivity (IEC 60093) | 62×10¹⁵ Ω |
| Dielectric Constant (1 kHz) | 2.44 |
| Dielectric Constant (10 MHz) | 2.46 |
| Property | Value |
| Mechanical Performance | |
| Lap Shear Strength (GBMS, Activator 7380™, 0 mm gap) | ≥12 N/mm² (≥1,740 psi) |
| Lap Shear Strength (GBMS, Activator 7380™, 0.5 mm gap) | ≥10 N/mm² (≥1,450 psi) |
| Lap Shear Strength (Steel, 72h @ 22°C) | 15-29 N/mm² (2,180-4,200 psi) |
| Lap Shear Strength (Zinc Dichromate, 72h @ 22°C) | 10-18 N/mm² (1,450-2,610 psi) |
| Compressive Shear Strength (Steel Pins/Collars) | 5.5-10 N/mm² (800-1,450 psi) |
| Tensile Strength (Steel Pin) | 4-12 N/mm² (580-1,740 psi) |
| “T” Peel Strength (Aluminum, Grit Blasted) | 0.7-2.5 N/mm (4-14 lb/in) |
| Property | Value |
| Environmental Resistance | |
| Hot Strength (100°C) | Retains ~75% of initial strength |
| Heat Aging (100°C, 150°C, 180°C) | Maintains structural integrity over 1000h |
| Chemical Resistance (1000h, Various Conditions) | Retains 85-95% of initial strength |
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Avantek Viet Nam is a dynamic MRO, direct materials and equipment supplier that brings advanced technological solutions to maximize satisfaction of customers.
We are expert in import and export of adhesives, accessories and equipment in both domestic and cosmetic industrial fields, production and technology research and development.
Our solutions promise to bring best optimal effectiveness along with competitive prices, excellent customer services, dedicated on-site support.
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