Loctite Copper Anti-Seize Lubricant LB 8008 4 fl oz brush-top can — 1800°F heat‑resistant, copper‑graphite formula

Loctite LB 8008 C5-A Copper Anti-Seize is a copper-and-graphite fortified lubricant that prevents galling, seizing, and corrosion on threaded and mated metal parts up to 1800°F.

Engineered for heavy-duty service, this 4 fl. oz. brush-top can of Loctite LB 8008 delivers a copper-pigmented grease that resists rust and reduces friction under extreme heat and pressure. The formula suspends copper and graphite particles in a high-quality carrier grease to form a durable protective film that improves clamp load and eases assembly and disassembly of fasteners, fittings, and flanges.

How does Loctite LB 8008 protect metal parts at high temperatures?

The copper and graphite solids in the LB 8008 blend create a heat-stable barrier that prevents direct metal-to-metal contact and inhibits oxidation. This barrier holds up through rapid temperature cycles and continuous exposure up to the product's 1800°F rating, reducing the risk of welded or frozen fasteners.

• Copper and graphite solids for thermal and mechanical protection
• Stable grease carrier that resists washout and breakdown
• Rated to 1800°F for use on exhaust, manifolds, and hot fasteners

Where should I apply this anti-seize during installation or maintenance?

Apply a thin, even coating to threads, studs, bolt shanks, and contact faces where corrosion, galling, or seizing is likely. The brush-top can makes controlled application easy in tight areas and helps avoid over-application that could attract contaminants.

• Threads, studs, and bolts—both assembly and reassembly
• Exhaust manifolds, flanges, and heat-exposed fasteners
• Marine hardware and other corrosion-prone environments

What are the product's physical and performance highlights?

Loctite LB 8008 is copper-colored with a mild odor and comes in a 4 oz brush-top can for convenient use. It’s formulated to improve clamp load and to ease later disassembly without damaging metal surfaces, and it resists common causes of fastener failure such as rust and galling.

• Size: 4 fl. oz. brush-top can for precise application
• Temperature range: −20°F low to 1800°F high
• Color: copper; mild odor; copper-plus-graphite solids

Are there any application or safety considerations I should know?

Use sparingly—apply only where protection is needed—and avoid contaminating brake or clutch surfaces. Wear appropriate hand protection and clean excess grease to prevent dirt buildup; follow all manufacturer safety guidelines and local disposal regulations.

• Avoid contact with sealed bearings or electrical contacts unless specified
• Keep away from ignition sources; store per label instructions
• Use gloves and clean tools after application to limit contamination

Who is this for? Loctite LB 8008 C5-A is suited to mechanics, fabricators, maintenance technicians, automotive and heavy-equipment professionals, and DIYers who need reliable anti-seize protection for high-temperature or corrosive environments. If you work with exhaust systems, heat-exposed fasteners, or equipment prone to rust and galling, this compact, brush-top can provides a convenient, durable solution for assembly and long-term maintenance.