Electric Motor Reliability with Huntsman ARALDITE® Encapsulation Potting – Casting
Electric Motor Reliability with Huntsman ARALDITE® Encapsulation Potting – Casting
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DOWSIL™ EA-2900 Sealant White is a high-performance, one-part RTV silicone adhesive designed for fast assembly. It features strong adhesion to typical PCB system assembly substrates and lighting module materials (e.g., glass, polycarbonate, PMMA, and silicone). The sealant achieves sufficient adhesion within 10 minutes, allowing continued assembly, and is compatible with LED lamps and luminaires. It holds a UL94-V1 flammability classification.
| Property | Unit | Result |
|---|---|---|
| Type | – | One-part, neutral alkoxy-cure silicone |
| Color | – | White |
| Extrusion Rate | g/min | 190 |
| Specific Gravity | g/ml | 1.52 |
| Tack-free Time (23°C, 50% RH) | minutes | 20 |
| Assembly Strength (Aluminum Lap Shear) after 10 min | kPa | 4 |
| Assembly Strength (Aluminum Lap Shear) after 60 min | kPa | 10 |
| Assembly Strength (Aluminum Lap Shear) after 1 day | kPa | 100 |
| Durometer Hardness (Shore A) | – | 50 |
| Modulus at 100% Elongation | MPa | 1.2 |
| Tensile Strength at Break | MPa | 2.1 |
| Elongation at Break | % | 400 |
| Unprimed Adhesion to Aluminum (lap shear) | MPa | 1.5 |
| Unprimed Adhesion to Glass (lap shear) | MPa | 1.6 |
| Unprimed Adhesion to Polycarbonate (lap shear) | MPa | 1.5 |
| Unprimed Adhesion to PMMA (lap shear) | MPa | 1.5 |
| Unprimed Adhesion to Molded Silicone (SILASTIC™ MS-1002 Transparent) | MPa | 1.0 |
| UL Flammability Classification | – | 94-V1 (6 mm) |
| Dielectric Strength | kV/mm | 17.1 |
| Volume Resistivity | ohm·cm | 1.02 × 10¹⁴ |
| Shelf Life (at 25°C) | months | 12 |
Electric Motor Reliability with Huntsman ARALDITE® Encapsulation Potting – Casting
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