Braking the habit — rethinking use of copper grease

29 May 2025  

Fras-le Mobility braking specialist, Juratek, is warning technicians and garages against the “outdated practice” of using copper grease when fitting replacement brake pads — something that the brand said can do more harm than good in today’s sophisticated braking systems.

While copper grease was once widely used to reduce brake squeal, modern brake pads — including the entire Juratek range — come equipped with premium anti-noise shims or coatings specifically designed to prevent noise and vibration.

In fact, the application of copper grease can increase brake noise, reduce component lifespan and interfere with modern vehicle systems, Juratek said.

“Modern braking systems are more complex and electronically integrated than ever before,” said Matt Leeming, head of product management for Fras-le Mobility in the UK.

Rigorous testing

“Using copper grease is not only unnecessary but potentially damaging, particularly to ABS and EPS systems, where conductivity from the copper can cause serious interference.”

Juratek said its premium anti-noise shims are tested rigorously to SAE2521 standards, the benchmark developed by OEMs to alleviate braking noise. The tests are conducted in anechoic chambers using full vehicle corner assemblies, ensuring real-world relevance and reliability.

Other risks of using copper grease on brake pads include degradation of rubber seals, potentially leading to fluid leaks or even brake failure, and pad sticking, preventing proper sliding within the caliper.

Copper grease does still have its place to prevent seizing or corrosion elsewhere on the vehicle, however, on non-braking contact points when fitting replacement pads, it is better to use ceramic or silicone-based lubricants that are designed for use with modern braking systems, the brand said.

Visit www.juratek.com for more information.