LOCTITE 279

Harmonization Code : 8001.20 | Unwrought tin: Tin alloys

LOCTITE 279

Main features

  • High-Strength Thread Retention
  • Threaded and Cylindrical Bonding
  • Wide-Temperature Threadlocking Range

Product Description

LOCTITE 279 is a one-component red, high-strength anaerobic dimethacrylate adhesive for locking and sealing threaded connections. It also bonds closely fitting cylindrical components, giving one grade a defined role across threaded and retaining assemblies. The uncured liquid has a specific gravity of 1.12 and a viscosity of 600 to 700 mPa s by ISO 3104. On 3/8 x 24 grade 2 steel nuts and bolts, prevail torque reaches at least 10 N m after one hour and at least 17 N m after 24 hours at 22 deg C. Typical applications use the product from -55 to 150 deg C.

Key features

  • High-strength threadlocking: Locks and seals threaded connections where a high level of strength is required.
  • Dual assembly fit: Also bonds closely fitting cylindrical components for retaining applications.
  • Torque development: Prevail torque reaches at least 10 N m after one hour and at least 17 N m after 24 hours at 22 deg C on grade 2 steel fasteners.

Applications

Applications include locking and sealing threaded connections and bonding closely fitting cylindrical components in the stated -55 to 150 deg C operating range.

Product Family

LOCTITE 279

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TDS, SDS & Technical Documents

Technical Specifications

General Properties
Appearance
Appearance at room temperature.
Red liquid
Chemistry Type
Dimethacrylate
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.
1.12
Physical Properties
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
600 to 700 mPa.s
Other Properties
Storage Temperature
8°C to 21 °C

Additional Information

Technical properties

As-supplied / before-processing properties

PropertyValueUnitMethod / condition
AppearanceRed liquidUncured material; LMS
UV fluorescencePositiveUncured material; LMS
Specific gravity1.12At 25 deg C
Viscosity600 to 700mPa s (cP)LMS; Cannon-Fenske; ISO 3104
Technical properties

After-processing / final-state properties

Prevail-torque values use 3/8 x 24 grade 2 steel nuts and bolts at 22 deg C. The operating range applies to typical applications.

PropertyValueUnitMethod / condition
Prevail torque>=10N mLMS; ISO 10964; after 1 h at 22 deg C
Prevail torque>=17N mLMS; ISO 10964; after 24 h at 22 deg C
Operating range-55 to 150deg CTypical applications

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