STYCAST 2651-40FR
Harmonization Code : 3910.00.00.90 | Silicones in Primary Forms; Others
Main features
- Low-Viscosity Potting Process
- Flame-Retardant Cured Encapsulation
- Low-Temperature Operating Range
Product Description
LOCTITE STYCAST 2651-40FR Flame-Retardant Epoxy Encapsulant is a black, two-component epoxy system used with CAT 24LV for general electrical and electronic potting. The 100:16 by-weight mix has a typical mixed viscosity of 1,200 mPa s and a 60-minute work life at 25 deg C, providing a controlled window before room-temperature or accelerated cure. After cure, the material combines a -65 to 105 deg C operating range with Shore D 88 hardness, dielectric properties, and the grade's flame-retardant formulation. Processing and final values remain specific to the CAT 24LV configuration.
Key features
- Low-viscosity mixed system: The CAT 24LV mixture has a typical viscosity of 1,200 mPa s.
- Flame-retardant formulation: The 2651-40FR grade is the flame-retardant version of STYCAST 2651-40.
- Low-temperature service range: The CAT 24LV system has an operating range of -65 to 105 deg C.
Applications
Applications include electrical and electronic potting where a flame-retardant epoxy system and the CAT 24LV processing profile are required.
TDS, SDS & Technical Documents
Technical Specifications
No specifications available.
Additional Information
As-supplied / before-processing properties
Typical as-supplied and mixed values for STYCAST 2651-40FR with CAT 24LV.
| Property | Value | Unit | Method / condition |
|---|---|---|---|
| Resin viscosity | 30,000 | mPa s (cP) | Brookfield; typical |
| Resin density | 1.55 | g/cm^3 | Typical |
| Resin shelf life | 6 | months | 25 deg C; from date of manufacture |
| Mix ratio by weight | 100:16 | STYCAST 2651-40FR:CAT 24LV | |
| Mixed viscosity | 1,200 | mPa s (cP) | Brookfield; typical |
| Mixed density | 1.44 | g/cm^3 | Typical |
| Work life | 60 | minutes | 100 g at 25 deg C |
| Cure schedule | 8 to 16 h at 25 deg C; 2 h at 65 deg C | Typical alternatives |
After-processing / final-state properties
Typical cured properties for the CAT 24LV configuration.
| Property | Value | Unit | Method / condition |
|---|---|---|---|
| Operating temperature range | -65 to 105 | deg C | CAT 24LV cured system |
| Hardness | 88 | Shore D | Typical cured value |
| Glass transition temperature | 58 | deg C | TMA |
| Coefficient of thermal expansion | 64 | 10^-6/deg C | TMA |
| Thermal conductivity | 0.55 | W/(m K) | ASTM D2214 |
| Water absorption | 0.92 | % | Water boil |
| Volume resistivity | >1 x 10^14 | ohm cm | 25 deg C |
| Dielectric constant / dissipation factor | 4.27 / 0.03 | 1 MHz |
