Electric Motor Reliability with Huntsman ARALDITE® Encapsulation Potting – Casting
Electric Motor Reliability with Huntsman ARALDITE® Encapsulation Potting – Casting
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Brand Name: DOWSIL™ 1-2577 Conformal Coating
Package Size: Available in 453 g bottles, 3.6 kg pails, and 18.1 kg pails.
Shelf Life: 36 months from the date of manufacture.
DOWSIL™ 1-2577 Conformal Coating is a one-part, translucent, medium-viscosity silicone resin solution designed to protect printed circuit boards (PCBs) and other electronic assemblies. Upon curing, it forms a tough, elastoplastic, and abrasion-resistant surface, enhancing the durability and reliability of electronic components. This coating cures at room temperature without the need for ovens, though mild heat acceleration can be applied after solvent flash-off to expedite processing. Additionally, it contains a UV indicator to facilitate automated inspection processes.
Applications
DOWSIL™ 1-2577 Conformal Coating is suitable for:
Protective coating for rigid and flexible circuit boards.
Printed Wiring Board (PWB) applications requiring toughness and abrasion resistance.
Use with many low-solids (no clean) and no-lead solders due to its good adhesion properties.
Typical Properties
| Property | Unit | Result |
|---|---|---|
| One or Two-Part | — | One |
| Color (Cured) | — | Translucent (Clear) |
| Viscosity | cP (mPa·s) | 950 |
| Specific Gravity (Uncured) | — | 1.04 |
| Specific Gravity (Cured) | — | 1.11 |
| Tack-Free Time at 25°C | minutes | 7 |
| Tack-Free Time at 60°C/15% RH | minutes | 1.3 |
| Durometer | Shore A | 80 |
| Dielectric Strength | volts/mil (kV/mm) | 400 (16) |
| Volume Resistivity | ohm·cm | 5 × 10¹³ |
| Dielectric Constant at 100 Hz | — | 2.74 |
| Dielectric Constant at 100 kHz | — | 2.74 |
| Dissipation Factor at 100 Hz | — | 0.0042 |
| Dissipation Factor at 100 kHz | — | <0.0002 |
| Non-Volatile Content | % | 72.3 |
| UL Flammability Classification | — | 94 V-0 |
| Regulatory Approvals | — | IPC-CC-830B, MIL-I-46058C, UL 746E Recognized |
Electric Motor Reliability with Huntsman ARALDITE® Encapsulation Potting – Casting
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