LOCTITE 545

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 545

Main features

  • One-Component Sealing System
  • Thread Sealing and Locking
  • Assembly Lubricity Sealant Formulation

Product Description

LOCTITE® 545 is a single-component, medium-viscosity anaerobic thread sealant designed for locking and sealing close-fitting metal pipes and fittings. The purple methacrylate ester formulation cures when confined between metal surfaces in the absence of air, helping prevent loosening and leakage caused by shock and vibration. It is specially formulated to provide lubricity during assembly and is suitable for hydraulic and pneumatic threaded connections.

Key features

  • Thread sealing and locking: Helps prevent leakage and loosening in close-fitting metal threaded assemblies.
  • Assembly lubricity: Formulated to support easier assembly of metal pipes and fittings.
  • One-component anaerobic cure: Requires no mixing and cures when confined between mating metal surfaces.
Product Family

LOCTITE 545

Loading pricing…
TDS, SDS & Technical Documents

Technical Specifications

General Properties
Appearance
Appearance at room temperature.
Purple 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
9,000 - 20,000 mPa.s

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 Purple liquid — Uncured material
Components One component — No mixing required
Viscosity 9,000–20,000 mPa·s Brookfield RVT, 25°C; spindle 3, 2.5 rpm
Specific gravity 1.02 — At 25°C
Flash point >93 °C Tagliabue closed cup; 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 80 × 10−6 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
Breakaway torque 2 N·m ISO 10964; M10 steel nuts and bolts; cured 24 hours at 22°C
Compressive shear strength ≥1.5 N/mm² ISO 10123; steel pins and collars; cured 24 hours at 22°C
Cold-strength test limit −75 °C Product tested to this temperature

Leading Brands Trust in Our Products and Services

Products that Perform| Knowledge that Serves| Service that Delivers