Anti-Seize

Two different failures called by one name

A fastener that will not come apart has failed in one of two ways, and they need different answers.

• Galling is metal-to-metal cold welding under load — common on stainless and aluminium threads, where the oxide layers rub through and the bare metals fuse. This is a lubrication problem.
• Corrosion lock is oxide growing in the thread gap until the parts seize — common on steel exposed to moisture. This is a corrosion problem.

A paste-type anti-seize (with solid lubricants) addresses galling. A moisture-displacing anticorrosion film addresses corrosion lock — and on most outdoor and serviced steel assemblies, corrosion lock is the failure that actually strands the bolt.

Choosing for the joint

• Stainless or aluminium under load, high temperature — solid-lubricant anti-seize paste.
• Steel exposed to weather, moisture, salt — anticorrosion film that displaces water and keeps the thread gap sealed, so oxide never bridges the threads.
• Assemblies serviced regularly — a film that stays elastic and re-wets, so the joint that came apart cleanly last time does so again.

Why moisture control is the quiet half of anti-seize

Most seized steel fasteners in the field did not gall — they corroded shut. Keep water out of the thread gap and the joint stays free for years. A moisture-displacing film applied at assembly does exactly this: it fills the gap, pushes out moisture and passivates the threads. The bolt turns freely at the next service instead of shearing off.

Supplying anti-seize protection in bulk

Maintenance operations that assemble and service thousands of fasteners consume protection by volume. Our anticorrosion formulation — the moisture-displacing film that keeps threads free — ships as bulk raw material worldwide from the EU in IBC totes and drums.

Nickel, copper or dielectric: choosing the anti-seize family

Nickel anti seize handles the highest temperatures and stainless-on-stainless galling; copper anti seize is the general-purpose workhorse for exhaust and chassis bolts. Both are conductive pastes — exactly wrong near live circuitry, where a dielectric film provides the release properties without the leakage path. Map the three to the joint's temperature, metallurgy and electrical context and the choice makes itself.

Where to next

• Corrosion inhibitor
• Penetrating oil
• Wholesale & IBC