Electric Motor Reliability with Huntsman ARALDITE® Encapsulation Potting – Casting
Electric Motor Reliability with Huntsman ARALDITE® Encapsulation Potting – Casting
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• Item Name: LOCTITE® AA 352™
• Manufacturer: Henkel
• Technologies: Acrylic, Modified Acrylic
• Color: Transparent light amber
• Cure Type: Ultraviolet (UV) light, Secondary Cure: Heat and Activator
• Package Size: Contact to Techniq VN for details.
• Shelf Life: Contact to Techniq VN for details.
1. Product Overview
LOCTITE® AA 352™ is a modified acrylic adhesive with medium viscosity, designed for bonding, sealing, and coating applications. It is a one-component adhesive that cures under ultraviolet (UV) light, with secondary curing options using heat or an activator. The cured product provides high resistance to vibration and impact forces, making it ideal for bonding metal and glass components in industrial applications, including electrical devices, appliance parts, and decorative components.
2. Applications
3. Typical Properties
| Property | Value |
|---|---|
| Undried Material | |
| Specific Gravity @ 25°C | 1.06 |
| Refractive Index | 1.48 |
| Color | Transparent light amber |
| Viscosity @ 25°C, mPa.s (Brookfield RVT, Spindle 6, Speed 20 rpm) | 20,500 |
| Curing Performance | |
| UV Fixture Time (100 mW/cm² @ 365 nm, LED flood light) | 55 sec |
| UV Fixture Time (6 mW/cm² @ 365 nm, Black light) | 12 sec |
| Heat Cure | 121°C for 30 minutes |
| Activator Cure (LOCTITE® 7075™) | Handling strength in 4 min, full cure in 72 hrs |
| Cured Material Properties | |
| Shore Hardness (ISO 868, Durometer D) | 60 |
| Refractive Index | 1.51 |
| Water Absorption (%) | 8.7 |
| Elongation at Break (%) | 290 |
| Tensile Strength (ISO 527-3) | 24.4 N/mm² (3,540 psi) |
| Tensile Modulus (ISO 527-2) | 255 N/mm² (37,000 psi) |
| Glass Transition Temperature (Tg) | 45°C |
| Adhesive Performance | |
| Block Shear Strength (ISO 13445) – Steel to Glass | 16.5 N/mm² (2,400 psi) |
| Block Shear Strength – Aluminum to Glass | 10.2 N/mm² (1,485 psi) |
| Block Shear Strength – Polycarbonate to Glass | 8.2 N/mm² (1,200 psi) |
| Block Shear Strength – PVC to Glass | 8.8 N/mm² (1,290 psi) |
| Block Shear Strength – ABS to Glass | 7.9 N/mm² (1,150 psi) |
| Lap Shear Strength (Steel, grit blasted, cured 24h @ 22°C with Activator 7075™) | 15.2 N/mm² (2,200 psi) |
| Lap Shear Strength (Cured @ 121°C for 45 min, Steel to Glass) | 20.6 N/mm² (3,000 psi) |
| Lap Shear Strength (Cured @ 121°C for 35 min, Aluminum to Glass) | 18.6 N/mm² (2,710 psi) |
4. Environmental Resistance
Electric Motor Reliability with Huntsman ARALDITE® Encapsulation Potting – Casting
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