What should I check before using nickel anti-seize on exhaust fasteners?
By the Atkinson Oil Co. product team (IGNIS Overseas Ltd, Isleworth, UK). Claims reviewed by IGNIS Product & Compliance on 14 Nov 2026. Last updated: 14 November 2026.
Short answer. Check four things: what the studs and nuts are made of, what the vehicle maker specifies, the torque the maker gives, and that nothing electrical sits on the joint. Atkinson Nickel Anti-Seize is copper-free and labelled for stainless steel and nickel alloys, so it is the one of ours to look at for stainless exhaust hardware. If the maker names a different compound, follow the maker.
Key facts
- Product: Atkinson Oil Co. Nickel Anti-Seize
- What it is: Copper-free nickel anti-seize compound
- Made for: Stainless steel and nickel-alloy fasteners
- Not for: Live electrical parts; joints the maker says to fit dry
- Who makes it: Atkinson Oil Co. is a brand of IGNIS Overseas Ltd, Isleworth, UK; Made in Britain
1. The metal. Stainless studs, nuts and nickel-alloy fixings are the reason this product exists. For plain steel fixings, Copper Grease or Aluminium Anti-Seize may also suit (see A1-01).
2. The maker's instruction. Some exhaust manifold and turbo fixings are fitted dry, or with a compound the maker names. Look it up for your vehicle before you open the tin.
3. The torque. Anti-seize lowers thread friction, so the same torque wrench reading gives more clamp. Ask the maker whether the figure is for dry or lubricated threads.
4. Sensors and wiring. Nickel Anti-Seize is conductive: keep it off live parts. Lambda sensors and their plugs are a common case — use only what the sensor maker allows on its thread.
How to apply
- Let the exhaust cool fully.
- Clean the threads and make sure they are dry.
- Apply a thin coat to the stud or bolt thread only.
- Fit, torque as the maker directs, and wipe off any excess.
Where not to use it. Live electrical parts; brake discs and pads; any joint the maker says must be fitted dry.
Temperature. The lid shows a temperature rating. Check it against the maker's requirement for your joint.
Caution: avoid contact with eyes; do not ingest; wash hands after use; keep out of reach of children.
Product link: Nickel Anti-Seize · Compare: Nickel anti-seize, aluminium anti-seize or copper grease: which should I choose for threaded fasteners?.
Sources
Printed product label; Your equipment maker's manual