ECCOBOND F131
Harmonization Code : 3907.30.00.40 | Epoxy Mold Compounds containing by weight more than 70 % silicon dioxide
Main features
- Clear Fiber-Optic Assembly Epoxy
- Room-Temperature or Accelerated Heat Cure
- High-Tg Cured Epoxy
Product Description
LOCTITE ECCOBOND F 131 BIPAX is a clear, two-part epoxy adhesive supplied in a BIPAX mixing-dispenser package for opto/photonics bonding. It is intended for terminating fiber optic connectors and assembling LED displays, lenses, and other optical components. The mixed adhesive has a typical viscosity of 1,800 mPa·s at 25°C and a 100:30 resin-to-hardener ratio by weight. It can cure at room temperature or with heat, with guideline schedules ranging from 18 hours at 25°C to 15 minutes at 90°C for one-drop applications. After cure, it has a typical glass transition temperature of 95°C and an operating-temperature range of -60 to 120°C.
Key features
- Clear opto/photonics epoxy: Developed for fiber optic connectors, LED displays, lenses, and other optical components.
- Flexible cure scheduling: Supports room-temperature curing or accelerated heat-cure schedules.
- Cured mechanical performance: Provides a typical 95°C Tg and 25 N/mm² lap shear strength on aluminum-to-aluminum specimens.
Applications / Suitable for
- Fiber optic connector termination
- LED display assembly
- Lens bonding
- Other optical-component assemblies
TDS, SDS & Technical Documents
Technical Specifications
Physical Properties
General Properties
Thermal Properties
Additional Information
As-supplied / before-processing properties
Typical values for LOCTITE ECCOBOND F 131 BIPAX. Values are reference data and should not be treated as guaranteed specifications.
| Property | Value | Unit | Method / condition |
|---|---|---|---|
| Chemistry | Epoxy | — | Two-component resin and hardener system |
| Color | Clear | — | Mixed adhesive |
| Mix ratio | 100:30 | By weight | Resin to hardener |
| Mixed viscosity | 1,800 | mPa·s | At 25°C |
| Specific gravity | 1.2 | — | Mixed adhesive |
| Thixotropic index | 1.0 | — | Uncured material |
| Guideline cure schedules | 18 h at 25°C; 1 h at 65°C; 15 min at 90°C | — | The 90°C schedule applies to one-drop applications; actual cure conditions may vary by application and equipment |
After-processing / final-state properties
Typical cured-material properties. Mechanical and electrical results apply to the stated test configuration or condition.
| Property | Value | Unit | Method / condition |
|---|---|---|---|
| Operating temperature | -60 to 120 | °C | Documented product operating-temperature range |
| Glass transition temperature | 95 | °C | Typical Tg |
| Hardness | 78 | Shore D | Cured material |
| Lap shear strength | 25 | N/mm² | Aluminum-to-aluminum specimens; equivalent reported value 3,700 psi |
| Izod impact strength | 0.22 | ft-lb/in of notch | Izod impact-strength test |
| Volume resistivity | 1.00 × 1011 | ohm·cm | At 25°C |
