LOCTITE 4047
Harmonization Code : 3208.20.90 | Paints and varnishes that are dispersed or dissolved in a non aqueous medium
Main features
- Rapid Blue-or-UV Photocure
- High-Viscosity Placement Control
- Low-Shrink Mechanical Stability
Product Description
LOCTITE ECCOBOND LUX 4047 is a single-component, high-viscosity acrylate adhesive and encapsulant for photocured optoelectronic assembly. The opaque yellowish-white material cures in seconds with suitable visible blue or UV light and combines low cure shrinkage with high mechanical stability. A viscosity of 120,000 mPa s supports controlled placement. The cured material has Shore D 80 hardness, 1.1% linear shrinkage, and 0.07% water absorption after 24-hour immersion. It is used for fiber-optic and optoelectronic device assembly, including LED mounting, laser-diode packaging, fiber pigtailing, and transceiver potting.
Key features
- Rapid Blue-or-UV Photocure: The adhesive cures in seconds under suitable visible blue or UV light.
- High-Viscosity Placement: A 120,000 mPa s viscosity supports controlled placement in optoelectronic assemblies.
- Low-Shrink Stable Cure: The cured material combines 1.1% linear shrinkage with Shore D 80 hardness.
Applications / Suitable for
- Fiber-optic and optoelectronic device assembly
- LED mounting and laser-diode packaging
- Fiber pigtailing and transceiver potting
TDS, SDS & Technical Documents
Technical Specifications
General Properties
Thermal Properties
Physical Properties
Chemical Properties
Additional Information
As-supplied / before-processing properties
Typical values for the uncured or as-supplied product unless otherwise noted.
| Property | Value | Unit | Method / condition |
|---|---|---|---|
| Color | Opaque yellowish white | - | As supplied |
| Viscosity | 120,000 | mPa s | Small sample adapter, 25 deg C |
| Shelf life | 6 | months | Stored at 5 deg C |
| Shelf life | 3 | months | Stored at 25 deg C |
After-processing / final-state properties
Typical cured-material values do not share one complete cure profile.
| Property | Value | Unit | Method / condition |
|---|---|---|---|
| Shore hardness | 80 | Durometer D | Cured material |
| Coefficient of linear expansion below Tg | 20 x 10^-6 | in/in/deg C | Cured material |
| Coefficient of linear expansion above Tg | 75 x 10^-6 | in/in/deg C | Cured material |
| Glass transition temperature | 52 | deg C | DMTA loss of modulus |
| Glass transition temperature | 148 | deg C | DMTA tan delta maximum |
| Linear cure shrinkage | 1.1 | % | Cured material |
| Water absorption | 0.07 | % | 24-hour immersion |
| Lap shear strength | 1,200 | psi | Glass to glass at 25 deg C |
