Loctite 38650 Copper Anti-Seize Lubricant – 8 oz Brush Top Cap (12 Pack)

Premium Copper Anti-Seize Lubricant for High Temperature Fasteners

Loctite 38650-12PK Copper Anti-Seize Lubricant combines a premium copper compound with a user friendly brush top cap to help you maintain metal joints that heat up or face moisture and vibration. This formulation is designed to reduce friction and resist seizing, corrosion, and galling in demanding environments. The brush top cap lets you apply precisely to threads or contact surfaces, helping keep work areas clean and minimizing waste. The copper component provides a consistent performance across diverse metals often found in automotive, industrial, and home equipment settings.

The product is built for resilience in challenging conditions, offering a broad operating range that supports scenarios from cold starts to hot engine runs. In addition to anti seize protection, it delivers good electrical conductivity for fasteners that also serve as electrical connections or sensor mounts. The pack includes 12 cans of 8 oz each, making it practical for multi-vehicle maintenance or shop workflows where consistency matters.

Key benefits

• Premium copper anti seize formula designed to resist seizing, corrosion and galling in high temperature conditions
• Wide temperature range: -30°F to 1800°F
• Good electrical conductivity helps maintain reliable connections
• Low friction film may ease future disassembly after heat cycles
• Versatile for automotive, industrial, and equipment fittings
• Pack includes 12 cans of 8 oz for bulk maintenance

Common applications

• Spark plug threads in aluminum engines
• Exhaust manifold bolts and other high heat fasteners
• Engine bolts and thermostat housing fasteners
• Oxygen sensors, knock sensors, and related fittings
• Fuel filter fittings and battery cable connections

How to use: Ensure surfaces are clean and dry, apply a thin, even layer to threads, and re torque per manufacturer guidelines. For disassembly in heat affected assemblies, apply along the thread path to facilitate future removal. The 8 oz brush top cap provides controlled application in tight spaces while keeping the container cleaner between uses.