Fenwick's PTFE Anti-Seize – Anti-Corrosion Compound for Threaded & Titanium Components

Fenwick's PTFE Anti-Seize is a copper-based anti-seize compound with PTFE that protects threaded and interference-fit components from corrosion, galling, and seizing — making future disassembly straightforward rather than a battle with seized bolts and corroded interfaces. It's an essential workshop product for any mechanic who works with titanium components, carbon fibre interfaces, or simply wants to ensure that every bolt they fit today can be removed cleanly in the future.

The compound is particularly effective at titanium-to-titanium and titanium-to-aluminium interfaces, where galling — the cold-welding of metal surfaces under pressure — is a well-known problem. A thin application to titanium bolt threads before fitting prevents this entirely. It's equally valuable on steel and aluminium threaded interfaces in high-corrosion areas such as bottom bracket threads, pedal threads, seatpost clamp bolts, and any bolt exposed to water and road salt. The PTFE content adds a dry lubricating layer that reduces friction during assembly, helping to achieve accurate torque readings without the risk of galling. The packaging allows precise application without a grease gun, making it practical for workshop and home mechanic use alike.

A secondary use is behind disc brake pads: a very thin layer applied to the back of the pad (not the braking surface) helps dampen vibration and reduce brake squeal. Take care to keep the compound away from the rotor and pad friction surface entirely. Browse the full Fenwick's range or explore our workshop and maintenance collection for complementary products.

What It's Good For

• Preventing corrosion and seizing on threaded components — bottom brackets, pedal threads, seatpost clamps, stem bolts
• Preventing galling at titanium-to-titanium and titanium-to-aluminium interfaces
• Reducing friction during assembly for accurate torque readings without galling risk
• Thin application behind disc brake pads to reduce brake squeal
• Precise application without a grease gun — practical for workshop and home use
• Long-lasting protection on components that are infrequently removed

What It's NOT Good For

• Braking surfaces — never apply to rotors or the friction face of brake pads; this will severely impair braking performance and is a safety hazard
• General-purpose lubrication of moving parts such as chains, cables, or pivot points — use a dedicated lubricant for these
• Carbon fibre components where a dedicated carbon assembly paste (which provides grip rather than slip) is required — anti-seize reduces friction, which is the opposite of what carbon paste does
• Extreme pressure applications requiring heavy-duty EP grease

Frequently Asked Questions

Why do titanium components need anti-seize?
Titanium is prone to galling — a form of cold-welding where metal surfaces bond under pressure and friction. This can make titanium bolts effectively impossible to remove without damage. Applying anti-seize to titanium threads before fitting prevents galling entirely and ensures the bolt can always be removed cleanly. This applies to titanium-to-titanium and titanium-to-aluminium interfaces.

Can I use it on carbon fibre components?
No — carbon fibre components such as seatposts and handlebars require a dedicated carbon assembly paste, which is designed to increase grip and prevent slipping at low torque. Anti-seize reduces friction, which is the opposite effect. Using anti-seize on carbon interfaces can lead to slipping at torque values below the manufacturer's specification.

How do I use it behind disc brake pads?
Apply a very thin smear to the metal backing plate of the brake pad only — the side that contacts the caliper piston, not the friction material. Keep the compound completely away from the rotor and the pad's friction surface. Even a small amount of contamination on the braking surface will significantly reduce braking performance and require the pads to be replaced.

Which threaded components benefit most from anti-seize?
Any threaded interface exposed to water, road salt, or dissimilar metals benefits from anti-seize. The most common applications on a bike are: bottom bracket threads (especially on steel or aluminium frames), pedal threads, seatpost clamp bolts, stem bolts, and any stainless or titanium bolt threaded into an aluminium component.