Permatex Copper Anti-Seize Lubricant 8 oz — High-Temp, Conductive Paste for Threads and Fasteners

Permatex Copper Anti-Seize Lubricant is a copper-based paste designed to prevent galling, seizing, and corrosion on threaded and bolted connections in high-temperature and high-pressure environments.

Whether you’re rebuilding an engine, installing exhaust components, or prepping fasteners for long-term outdoor exposure, this 8 oz container of Permatex Copper Anti-Seize provides a durable, conductive barrier that eases assembly and future disassembly. The formula combines fine copper particles with a stable carrier to reduce metal-to-metal contact, minimize friction, and inhibit rust where metals meet. It’s supplied in a convenient jar for workshop use and can be applied with a brush, rag, or fingertip while wearing gloves.

How does this anti-seize improve assembly and maintenance?

Applying a thin coat of copper anti-seize on threads and mating surfaces reduces the torque required to tighten fasteners and prevents cold welding between dissimilar metals. That means bolts, studs, and fittings are less likely to gall or strip, and easier to remove later without damaging parts.

• Reduces galling and seizure during tightening
• Facilitates later disassembly and service
• Smooths torque application for accurate fastening

Where is Permatex Copper Anti-Seize most useful?

This copper formulation is well-suited for high-temperature areas and components exposed to corrosive conditions. Typical applications include exhaust systems, manifolds, spark plugs, flange bolts, and aftermarket hardware on engines and chassis where heat and vibration are present.

• Exhaust studs, manifolds, and turbo hardware
• Spark plug threads and ignition components
• Flanges, bolts, and threaded fittings prone to corrosion

How should I apply it safely and effectively?

Surface prep is straightforward: clean parts of dirt, oil, and old sealants before applying a light, even film to threads or mating surfaces. Use gloves and an applicator to control coverage; avoid over-application, which can squeeze out into unwanted areas. Always follow local disposal guidelines for rags and excess product.

• Clean threads and mating surfaces first
• Apply a thin, even layer with brush or finger (wear gloves)
• Wipe away excess and torque fasteners to specifications

Will this affect electrical conductivity or corrosion resistance?

Because the paste contains fine copper solids, it can maintain electrical continuity across threaded joints where conductivity matters, while also offering a protective layer against rust and galvanic attack. It’s generally chosen when both conductivity and high-temperature protection are desirable—but verify suitability for sensitive electrical contacts first.

• Supports electrical continuity on threaded connections
• Helps block moisture and corrosive attack between metals
• Not recommended where pure insulating compounds are required

Who is this for: Mechanics, automotive enthusiasts, maintenance technicians, and DIYers who service engines, exhaust systems, and outdoor equipment will benefit most from Permatex Copper Anti-Seize Lubricant. Choose this 8 oz jar when you need a workshop-size supply of a dependable, high-temperature anti-seize for bolts, studs, spark plugs, and flanges—especially in applications where preventing seizure and preserving conductivity are priorities.