Technical Data Sheet
LOCTITE® MR 5923
Known as LOCTITE® 5923 or Aviation Gasket Sealant
June-2022
PRODUCT DESCRIPTION
LOCTITE® MR 5923 provides the following product
characteristics:
Technology Solvent based
Chemical Type Modified resin, fillers and alcohol
Appearance Brown liquidLMS
Viscosity Flow similar to SAE 10 Motor Oil
Cure Air dry
Application Gasketing & sealing
Specific Benefits For close tolerance flanges
Slow drying
Flexible setting
LOCTITE® MR 5923 seals close fitting parts, machined
surfaces and threaded connections in industrial, aircraft, and
marine applications. It is a slow drying liquid that changes to a
pliable, tacky film through solvent evaporation. Typical
applications include solid gasket dressing, close fitting
machined surfaces, threaded connections, aviation engines
and marine engines. This product is typically used in
applications with an operating range of -54 °C to +204 °C.
TYPICAL PROPERTIES OF UNCURED MATERIAL
Specific Gravity @ 25 °C 1.1
Flash Point See SDS
Viscosity, Brookfield RV,25°C,mPa·s (cP):
Spindle 3, speed 5 rpm 8,000 to 10,000LMS
TYPICAL CURING PERFORMANCE
LOCTITE® MR 5923, once applied, develops a hard,
semi-flexible sealant by solvent evaporation. Dry times will
vary with temperature, humidity and gap.
TYPICAL ENVIRONMENTAL RESISTANCE
Chemical/Solvent Resistance
LOCTITE® MR 5923 retains effective properties in contact
with water, ethylene glycol, gasoline, motor oil, transmission
fluid and sea water
GENERAL INFORMATION
This product is not recommended for use in pure oxygen
and/or oxygen rich systems and should not be selected as
a sealant for chlorine or other strong oxidizing materials.
For safe handling information on this product, consult the
Safety Data Sheet (SDS).
A 1-part, viscous, solvent-based gasketing and sealing liquid used in various applications in the aviation and marine industry.
LOCTITE® MR 5923 is a dark reddish to brown solvent gasketing and sealing compound based on modified resin, fillers and alcohol. It's designed for sealing close-fitting parts, machined surfaces and threaded connections in industrial, aircraft, and marine applications with an operating range of -54°C to 204°C (-65°F to 399°F). LOCTITE MR 5923 cures slowly by air drying to form a hard, semi-flexible sealant film that retains its properties when in contact with (sea) water, ethylene glycol, gasoline, motor oil and transmission fluid.
