LOCTITE 554

Harmonization Code : 3506.10.00.00 | 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

LOCTITE 554

Main features

  • High Solvent Resistance
  • Thread Sealing Up to 50mm
  • One-Component Sealing System

Product Description

LOCTITE® 554 is a one-component, medium-viscosity anaerobic thread sealant formulated for metal threaded fittings and pipe up to 50 mm in diameter. The red methacrylate ester liquid cures when confined between close-fitting metal surfaces in the absence of air, providing maximum solvent resistance in demanding service environments. It is recommended for refrigeration systems and applications involving strong chemicals, including metal and fiber plants, chemical and paper processing facilities, waste treatment operations, and textile manufacturing.

Key features

  • High solvent resistance: Designed for threaded fittings exposed to refrigeration service and strong chemicals.
  • Thread sealing up to 50 mm: Intended for close-fitting metal pipe and fittings up to 2 inches in diameter.
  • One-component anaerobic cure: Requires no mixing and cures when confined between mating metal surfaces.
Product Family

LOCTITE 554

Loading pricing…
TDS, SDS & Technical Documents

Technical Specifications

General Properties
Appearance
Appearance at room temperature.
Red liquid
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.
1.02
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
1,500 - 3,500 mPa.s
Thermal Properties
Thermal Conductivity
Thermal conductivity describes the ability of a material to conduct heat. It is required by power packages in order to dissipate heat and maintain stable electrical performance. Thermal conductivity units are [W/(m K)] in the SI system and [Btu/(hr ft °F)] in the Imperial system.
0.1 W/m.K

Additional Information

Technical properties

As-supplied / before-processing properties

Typical properties of the uncured material; values are reference data rather than guaranteed product specifications.

Property Value Unit Method / condition
Technology Acrylic — Uncured material
Chemical type Methacrylate ester — Uncured material
Appearance Red liquid — Uncured material
Fluorescence Negative — Uncured material
Components One component — No mixing required
Specific gravity 1.02 — At 25°C
Viscosity 1,500–3,500 mPa·s Brookfield RVT, 25°C; spindle 3, 20 rpm
Flash point >100 °C SDS value
Density 1.08 g/cm³ At 20°C; SDS value
Technical properties

After-processing / final-state properties

Typical cured-material properties depend on the stated cure schedule, substrate, specimen, and test method.

Property Value Unit Method / condition
Coefficient of thermal expansion 0.1 K−1 ISO 11359-2
Thermal conductivity 0.1 W/(m·K) ISO 8302
Specific heat 0.3 kJ/(kg·K) Typical cured-material property
Prevail torque ≥10.8 N·m ISO 10964; 3/8 × 24 steel nuts and bolts; cured 24 hours at 22°C
Breakaway torque 27.2 N·m ISO 10964; 3/8 × 24 steel nuts and bolts; cured 72 hours at 22°C
Prevail torque 23.8 N·m ISO 10964; 3/8 × 24 steel nuts and bolts; cured 72 hours at 22°C
Maximum application temperature 149 °C Typical stated application limit

Leading Brands Trust in Our Products and Services

Products that Perform| Knowledge that Serves| Service that Delivers