AA-BOND F253 Replaced by F123 Click to view product
High Temp Fiber Optic Epoxy Adhesive ECCOBOND F 253 / Tra-bond F253 Formulation
| Part Number | Mix Ratio (R:H) | Operating Temp Range | Cure Type | Technology |
|---|---|---|---|---|
| AA-BOND F253 | 100:10 (by weight) | -60°C to 175°C | Heat Cure | Two-Part Epoxy |
✨ Product Features & Benefits
- **NONE Color Keyed:** Changes color during the cure process to indicate cure status (Blue/Green to Reddish-Amber).
- **Low Stress:** Demonstrates low internal stress after curing, ideal for bonding sensitive optical components.
- **Wicking:** Excellent low viscosity and wicking characteristics for penetrating tight joints like fiber optic ferrules.
- **Thermal Resistance:** Excellent resistance to thermal shock across a wide service temperature range.
- **NASA Outgassing:** Meets low outgassing requirements, making it suitable for vacuum applications.
Uncured Properties
| Property | Value | Test Condition |
|---|---|---|
| Appearance (Resin) | Light Yellow | Unmixed |
| Appearance (Mixture) | Clear | After Mixing |
| Appearance (Cured) | Clear | Fully Cured |
| Mixed Viscosity | 1,750 cP | @ 25°C |
| Pot Life | 1 hour | 25 grams |
| Specific Gravity | 1.2 | Mixed |
Cured Properties
| Property | Value | Test Method |
|---|---|---|
| Glass Transition Temp (Tg) | 116°C | |
| Hardness | 88 | Shore D |
| Lap Shear Strength (Al) | 2,700 psi | Aluminum to Aluminum |
| Refractive Index | 1.56 | |
| CTE (Below Tg) | $62.7 \times 10^{-6} \text{ ppm/°C}$ | |
| CTE (Above Tg) | $202 \times 10^{-6} \text{ ppm/°C}$ | |
| NASA Outgassing (TML) | 0.57% |
⏱️ Typical Cure Schedule
| Temperature | Time |
|---|---|
| 100°C (212°F) | 15 minutes |
| 125°C (257°F) | 5 minutes |
| 150°C (302°F) | 1 minute |
**IMPORTANT NOTE:** For applications where the operating temperature exceeds 150°C, a post-cure of 30 minutes @ 150°C is highly recommended to fully develop the adhesive's properties.
Atom Adhesives MAKES NO EXPRESS OR IMPLIED WARRANTIES OF MERCHANTABILITY OR OTHERWISE with respect to its products. In addition, while the information contained herein is believed to be reliable, no warranty is expressed or implied regarding the accuracy of the data or the results to be obtained from the use thereof. All recommendations or suggestions for use are made without guarantee in as much as conditions of use are beyond our control. The properties given are TYPICAL VALUES and are not intended for use in preparing specifications. Users should make their own tests to determine the suitability of this product for their own purposes.
