Loctite LOC51008 Copper Anti-seize Lubricant 2.5 Lb

Product Description

The LOCTITE LOC51008 is a copper-based anti-seize lubricant formulated with an exclusive blend of copper and graphite suspended in high-quality grease. Designed for threaded fasteners, flanges, and metal-to-metal contact points, it protects against rust, corrosion, galling, and seizing at temperatures up to 1,800 degrees F (982 degrees C). Supplied in a 2.5-pound metal can, this product is used across HVAC, plumbing, and general mechanical trades wherever high-temperature joint protection is required.

This anti-seize compound is suited for residential and commercial applications involving high-heat environments. Common install scenarios include pipe fittings, exhaust hardware, boiler connections, furnace flue fittings, and other threaded assemblies subject to thermal cycling or corrosive conditions. It is applied by hand or brush to fastener threads and mating surfaces prior to assembly.

Key Features

• Copper and graphite formula provides high-temperature protection up to 1,800 degrees F
• Prevents galling, seizing, rust, and corrosion on metal-to-metal contact surfaces
• High-quality grease carrier ensures consistent coverage and adhesion
• Supplied in a 2.5-pound metal can for bench or field use
• Suitable for threaded fasteners, flanges, and pipe connections in high-heat systems

Compatibility

Designed as an OEM-style anti-seize compound for use on metal fasteners, fittings, and threaded connections in HVAC, plumbing, and mechanical service applications.

Installation Notes

Applied by qualified HVAC technicians, plumbers, or mechanical contractors during assembly or servicing of threaded connections. De-energize equipment and shut off all fuel or fluid supply lines before servicing any joint or fitting. Apply a thin, even coat to clean, dry threads before assembly — do not apply to live or pressurized systems. Follow applicable codes including IFGC and IPC for gas and plumbing connections.

Technical Specifications

• Base Formula: Copper and graphite in high-quality grease
• Maximum Temperature Rating: 1,800 degrees F (982 degrees C)
• Net Weight: 2.5 pounds
• Container Type: Metal can
• UPC: 079340510087

Standard Information

• Brand: LOCTITE
• Manufacturer Part Number: LOC51008