Applications

LOCTITE ECCOBOND OGR 146TUV – Photocurable Adhesive – Optical and Optoelectronic Assembly

  • Item Name: LOCTITE ECCOBOND OGR 146TUV
  • Manufacturer: Henkel
  • Technologies: Acrylate
  • Color: Colorless
  • Cure Type: Ultraviolet (UV) light with secondary thermal cure
  • Application: Optical devices, fiber optics, and optoelectronic assembly
  • Package Size: Contact Techniq VN for details.
  • Shelf Life: 183 days @ -5 to +5°C (from date of manufacture)

1. Product Overview

LOCTITE ECCOBOND OGR 146TUV is a single-component, UV-curable acrylate adhesive designed for high-throughput assembly applications, particularly in optical and optoelectronic device bonding. It features a secondary thermal cure mechanism for applications with shadowed areas, ensuring strong adhesion and enhanced moisture resistance.

2. Applications

  • Optical device assembly
  • Fiber optic bonding
  • Optoelectronic component assembly

3. Typical Properties

Uncured Material Properties

Property Value Test Method
Viscosity (Brookfield CP51, 25°C) 1,250 mPa·s Speed 5 rpm
Work Life @ 25°C 91 days
Shelf Life @ -5 to +5°C 183 days
Flash Point See SDS

Curing Performance

UV Cure Parameters

Parameter Value
UV Wavelength 365 nm
Light Intensity ≥110 mW/cm²

Secondary Thermal Cure Parameters

Parameter Value
Temperature 100°C (1 hour) / 85°C (2 hours)
Atmosphere Nitrogen (optional, enhances bond strength & moisture resistance)

Cured Material Properties

Property Value
Hardness (Shore D) 60
Refractive Index @ 589 nm 1.464
Refractive Index @ 633 nm 1.462
Refractive Index @ 830 nm 1.458
Refractive Index @ 1,320 nm 1.455
Refractive Index @ 1,550 nm 1.454
Coefficient of Thermal Expansion (Below Tg) 62 ppm/°C
Coefficient of Thermal Expansion (Above Tg) 215 ppm/°C
Glass Transition Temperature (Tg) 77°C
Tensile Modulus @ 25°C 635 N/mm² (92,000 psi)
Moisture Absorption @ Saturation (85°C / 85% RH) 1.7%

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