LOCTITE STYCAST 2850FTJ CAT 11 is a two-component epoxy encapsulant designed for high-voltage applications. It offers good thermal conductivity, low coefficient of thermal expansion (CTE), and excellent electrical insulation properties. The product is available in both black and blue colors.
| Property | LOCTITE STYCAST 2850FTJ | LOCTITE CAT 11 | Mixed (STYCAST 2850FTJ + CAT 11) |
|---|---|---|---|
| Viscosity (mPa·s) | 225,000 (Brookfield, Spindle 7, 5 rpm) | 48 (@ 65°C) | 64,000 (Brookfield, 25°C) |
| Density (g/cm³) | 2.4 | – | 2.29 |
| Work Life (@ 25°C, 100g) | – | – | >4 hours |
| Shelf Life (@ 25°C) | 180 days | – | – |
| Temperature | Cure Time |
|---|---|
| 80°C | 8 – 16 hours |
| 100°C | 2 – 4 hours |
| 120°C | 30 – 60 minutes |
| A post-cure of 2 to 4 hours at the maximum expected operating temperature is recommended for optimal performance. |
Physical & Thermal Properties
| Property | Value |
|---|---|
| Hardness (Shore D) | 96 |
| Linear Shrinkage (%) | 0.2 |
| Water Absorption (24h) (%) | 0.05 |
| Coefficient of Thermal Expansion (ppm) | Alpha 1: 31.2, Alpha 2: 97.9 |
| Glass Transition Temperature (°C) | 115 |
| Thermal Conductivity (W/m-K) | 1.28 |
Electrical Properties
| Property | Value |
|---|---|
| Dielectric Strength (kV/mm) | 15.0 |
| Dielectric Constant/Dissipation Factor (1 MHz) | 5.36 / 0.043 |
| Volume Resistivity (Ω·cm @ 25°C) | 1×10¹⁵ |
Mechanical Properties
| Property | Value |
|---|---|
| Flexural Strength (N/mm²) | 117 (17,000 psi) |
| Compressive Strength (N/mm²) | 193 (27,900 psi) |
Outgassing Properties (NASA Reference Publication 1124, cured 4h @ 80°C)
| Property | Value |
|---|---|
| TML (%) | 0.29 |
| CVCM (%) | 0.02 |
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