Loctite Copper Anti-Seize Lubricant 1 lb Brush-Top Can — -20°F to 1800°F High-Temp Protection

Loctite 51007 Copper LB 8008 C5-A Anti-Seize is a copper-based lubricant designed to prevent galling, corrosion, and seizure on threaded and sliding metal connections across extreme temperatures from -20°F to 1800°F.

This anti-seize compound combines metallic copper flakes with a high-temperature carrier to create a durable film that withstands heavy loads, high temperatures, and corrosive environments. Supplied in a convenient 1 lb brush-top can, the formula simplifies application to bolts, studs, fittings and flange faces while minimizing cold welding and rust build-up. Made in the United States and packaged to industrial standards, it’s engineered for maintenance, repair and assembly tasks in automotive, marine, manufacturing and HVAC settings.

What materials and temperature range is this product suitable for?

The copper formulation is optimized for ferrous and stainless steel fasteners and metal-to-metal mating surfaces. It tolerates short-term and continuous exposure across a wide temperature band without melting or breaking down.

• Temperature performance from -20°F to 1800°F (-29°C to 982°C)
• Works well on steel, stainless steel, cast iron and other common alloys
• Copper flakes improve conductivity and protect against seizure and galling
• Not intended as a replacement for electrical conductors unless specified

How do you apply the brush-top 1 lb can for best results?

The brush-top makes controlled application fast and clean: shake the can, use the attached brush to lay an even film on threads or faces, and allow any solvent carrier to flash off if present. Apply a thin, uniform coating—over-application can attract dirt or debris in some environments.

• Shake can well before use to redistribute metallic solids
• Brush onto cleaned, dry threads or contact surfaces for consistent coverage
• Use sparingly on precision fittings; thicker coats only where extra protection is needed
• Reapply after heavy service or during scheduled maintenance

Will this anti-seize protect against corrosion and make disassembly easier?

Yes—copper anti-seize reduces metal-to-metal contact that leads to corrosion, seizing and cold welding, easing future disassembly. It forms a protective barrier that resists rust and minimizes torque variations caused by rusted fasteners.

• Prevents galling on threaded connections and fasteners
• Reduces torque spike by providing consistent lubrication at installation
• Helps avoid damaged threads during removal under high-heat conditions
• Suitable for environments exposed to moisture, salt or moderate chemicals

Who is this product for? Maintenance technicians, mechanics, fabricators and field engineers who work with high-temperature equipment, flanged connections and fasteners will benefit most from Loctite 51007 Copper LB 8008 C5-A. If you need a reliable anti-seize that endures extreme heat, heavy loads and corrosive exposure—while offering easy brush-top application and U.S. manufacturing—you’ll find this 1 lb can a practical addition to shop and service kits.

Product specifics: Model number 442-51007; item package dimensions approximately 8.5" L x 6.0" W x 5.5" H; package weight about 1.33 lb; country of origin United States.