LOCTITE STYCAST US 5538 is a flexible, unfilled, urethane-based potting compound designed for potting and encapsulating applications. It offers low viscosity for good flow, strong adhesion to various substrates, and low odor, making it suitable for workplace environments. The material can encapsulate load coils, transformers, and similar components. Sand can be added to improve thermal conductivity and reduce shrinkage and cost.
| Property | Part A | Part B | Mixed |
|---|---|---|---|
| Specific Gravity (g/cm³) | 1.24 | 0.96 | 1.06 |
| Viscosity @ 25°C (cps) | 55 | 850 | 450 |
| Mix Ratio (by weight) | 30 | 70 | – |
| Working Time (25°C, min) | – | – | 20-40 |
| Gel Time (25°C, min) | – | – | 45-75 |
| Property | Value |
|---|---|
| Shore Hardness (Durometer A) | 65 |
| Moisture Absorption (24 hrs @ 25°C, %) | 0.2 |
| Weight Loss (168 hrs @ 125°C, %) | 0.005 |
| Glass Transition Temperature (°C) | -12 |
| Thermal Conductivity (W/m-K) | 0.18 |
| Property | Value |
|---|---|
| Dielectric Strength (volts/mil) | 955 |
| Dielectric Constant / Dissipation Factor (100 Hz @ 25°C) | 3.2 / 0.05 |
| Volume Resistivity (ohms-cm) | 1.6×10¹⁵ |
| Surface Resistivity (ohms @ 25°C) | 3.1×10¹³ |
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Everwide FX219G5 Silicone Potting Compound – high-thermal, UL94 V-0 silicone potting for electronic modules. Compare with Shin-Etsu KET-132 silicone potting.
FX244-1 A specialized two-part silicone rubber designed for creating high-precision molds. This material features a unique oil-bleeding property that creates a self-releasing surface, eliminating the need for external non-stick sprays during demolding.
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