ECCOBOND F113

Harmonization Code : 3506.91.90.99 | Prepared glues and other prepared adhesives, not elsewhere specified or included; products suitable for use as glues or adhesives, put up for retail sale as glues or adhesives, not exceeding a net weight of 1 kg ; Adhesives based on polymers of headings 3901 to 3913 or on rubber; Other ; Other

ECCOBOND F113

Main features

  • Low-Viscosity Precision Application
  • Optically Clear Material
  • High Surface Wettability

Product Description

LOCTITE ECCOBOND F 113 is a two-part, optically clear epoxy adhesive for bonding and small-volume potting of optical assemblies. The 100:30 resin-to-hardener system has a mixed viscosity of 180 cP at 25 °C, providing low-viscosity flow and excellent wettability around plastic or glass optical fibers, lenses, prisms and LED displays. The cured adhesive has a refractive index of 1.55 and 97% spectral transmittance from 3,200 to 9,000 Å. It can be cured for 24 hours at 25 °C or accelerated for 1 to 2 hours at 65 °C, with a documented operating temperature range of -60 to 100 °C. It bonds glass, glass fibers, ceramics, many metals and most rigid plastics.

Key features

  • Optically clear: Provides 97% spectral transmittance from 3,200 to 9,000 Å and a refractive index of 1.55.
  • Low mixed viscosity: A typical viscosity of 180 cP at 25 °C supports wetting and small-volume optical-component potting.
  • Wide operating range: Suitable for operating temperatures from -60 to 100 °C.

Applications / Suitable for

  • Plastic and glass optical fiber bonding
  • Lens and prism bonding
  • LED display assembly
  • Small-volume potting of optical components
Product Family

ECCOBOND F113

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TDS, SDS & Technical Documents

Technical Specifications

Physical Properties
Thixotropic index
Thixotropic Index is a ratio of a material s viscosity at two different speeds in Ambient temperature, generally different by a factor of ten. A thixotropic material s viscosity will decrease as agitation or pressure is increased. It indicates the capability of a material to hold its shape. Mayonnaise is a great example of this. It holds its shape very well, but when a shear stress is applied, the material easily spreads. It helps in choosing a material in accordance to the application, dispense method and viscosity of a material.
1.0
Viscosity
Viscosity is a measurement of a fluid’s resistance to flow. Viscosity is commonly measured in centiPoise (cP). One cP is defined as the viscosity of water and all other viscosities are derived from this base. MPa is another common unit with a 1:1 conversion to cP. A product like honey would have a much higher viscosity -around 10,000 cPs- compared to water. As a result, honey would flow much slower out of a tipped glass than water would. The viscosity of a material can be decreased with an increase in temperature in order to better suit an application
180 mPa.s
General Properties
Mix Ratio
The amount of a constituent divided by the total amount of all other constituents in a mixture
100:30
Refractive index
The refractive index determines how much the path of light is bent, or refracted, when entering a material. It is calculated by taking into account the velocity of light in vacuum compared to the velocity of light in the material. The refractive index calculation can be affected by the wavelength of light and the temperature of the material. Even though it is usually reported on standard wavelengths it is advised to check the TDS for the precise test parameters.
1.55
Specific Gravity
Specific gravity (SG) is the ratio of the density of a substance to the density of a reference substance; equivalently, it is the ratio of the mass of a substance to the mass of a reference substance for the same given volume. For liquids, the reference substance is almost always water (1), while for gases, it is air (1.18) at room temperature. Specific gravity is unitless.
1.22
Thermal Properties
Glass Transition Temperature (Tg)
The glass transition temperature for organic adhesives is a temperature region where the polymers change from glassy and brittle to soft and rubbery. Increasing the temperature further continues the softening process as the viscosity drops too. Temperatures between the glass transition temperature and below the decomposition point of the adhesive are the best region for bonding. The glass-transition temperature Tg of a material characterizes the range of temperatures over which this glass transition occurs.
45 °C

Additional Information

Technical properties

As-supplied / before-processing properties

Typical uncured, mixed-material and cure values provided for product evaluation. These values are not guaranteed specifications.

Property Value Unit Method / condition
Appearance Clear — Epoxy adhesive system
Mix ratio 100:30 Parts by weight Resin:hardener
Mixed viscosity 180 cP At 25 °C
Thixotropic index 1.0 — Uncured material
Specific gravity 1.22 — Uncured material
Pot life 2 h Mixed adhesive
Work life 3 h Mixed adhesive
Cure schedule 24 / 1–2 h At 25 °C / 65 °C; guideline cure profiles
Technical properties

After-processing / final-state properties

Typical cured-material properties and laboratory performance values. Test conditions are retained where supplied; values are not guaranteed specifications.

Property Value Unit Method / condition
Operating temperature -60 to 100 °C Documented operating range
Coefficient of thermal expansion 55 ppm/°C Cured material
Glass-transition temperature 45 °C DMA
Refractive index 1.55 — Cured material
Spectral transmittance 97 % From 3,200 to 9,000 Å
Dielectric strength 430 V/mil Cured material
Volume resistivity 9 × 108 Ω·cm At 25 °C
Lap-shear strength 4,000 psi Aluminum/aluminum; cured for 2 h at 65 °C

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