Applications

LOCTITE ECCOBOND LUX 4047 – Adhesive/Sealant – Fiber Optic & Optoelectronic Assembly

  • Item Name: LOCTITE ECCOBOND LUX 4047
  • Manufacturer: Henkel
  • Technologies: Acrylate
  • Color: Opaque White
  • Cure Type: Ultraviolet (UV) light
  • Package Size: 2.5 ml to 10 ml syringes
  • Shelf Life: Contact to Techniq VN for details.

1. Product Overview

LOCTITE ECCOBOND LUX 4047 is a high-viscosity, single-component, UV-curable acrylate adhesive designed for high-throughput optoelectronic assembly applications. It provides low shrinkage, excellent mechanical stability, and rapid curing when exposed to visible (blue) or UV light.


2. Applications

  • Optic Applications: Fiber optic assembly, optoelectronic device assembly
  • Other Applications: LED mounting, laser diode packaging, fiber pigtailing, transceiver potting

3. Typical Properties

Uncured Material

Property Value
Technology Acrylate
Appearance Opaque White
Cure Type Ultraviolet (UV) light
Viscosity @ 25°C 120,000 mPa·s (cP)
Shelf Life @ 5°C 6 months
Shelf Life @ 25°C 3 months

Curing Conditions

Parameter Value
Recommended Cure UV or visible light
Visible Light Wavelength 470 nm (Blue)
UV Lamp Intensity >150 mW/cm²
Cure Depth 12 mm (unfilled), 5 mm (filled)
Cure Time <1 minute

Cured Material

Property Value
Hardness (Shore D) 80
Glass Transition Temperature (Tg) 52°C (Loss of Modulus), 148°C (Tan Δ Max)
Flexural Modulus 7,901 N/mm² (1,146,000 psi)
Linear Shrinkage on Cure 1.1%
Water Absorption (24 hrs) 0.07%
Coefficient of Linear Expansion Below Tg: 20×10⁻⁶ in/in/°C, Above Tg: 75×10⁻⁶ in/in/°C

Mechanical Performance

Property Value
Lap Shear Strength @ 25ºC (Glass to Glass) 1,200 psi

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