Loctite LB 8009 51609 Heavy-Duty Gray Anti-Seize Lubricant – 1 fl oz Tube

Loctite LB 8009 (51609) Heavy-Duty Gray Anti-Seize Lubricant is engineered to protect critical threaded assemblies from galling, corrosion, and seizure under extreme conditions. Its gray, petroleum-thickened formula suspends high-purity metallic solids, forming a durable film that stays in place under vibration, wash-off, and temperatures from −20 °F up to 2400 °F. The 1 fl oz squeeze tube delivers precise, mess-free application to bolt threads, pump flanges, valve stems, and more—ideal for heavy-duty industrial, automotive, marine, and MRO maintenance tasks.

Key benefits

Extreme-temperature protection: −20 °F to 2400 °F

Heavy-duty corrosion & galling resistance on steel, brass, aluminum, and alloys

High-adhesion paste stays put under shock, wash-off, and chemical exposure

Tube applicator for controlled, one-hand dispensing even in tight spaces

Long service life reduces re-application frequency and downtime

Typical applications

Exhaust manifold and turbocharger fasteners

Pump and valve packing nuts

Flange bolts, injector lines, pipe fittings

Marine hardware, brake caliper pins, industrial presses

Any threaded assembly in high-heat or corrosive environments