CONTRIBUTED INDUSTRY SERIES
The following is the second of a multi-part contributed series from NRS Brakes: a NUCAP company examining the role of the steel backing plate in brake pad durability. The technical positions expressed are the author’s. The BRAKE Report publishes contributed perspectives from across the brake and friction industry and welcomes responses from other manufacturers.
Catch up: Read Introduction | Read Part One
By NRS Brakes: a NUCAP company
Disclosure: NRS Brakes is a sponsor of The BRAKE Report. This series was contributed as editorial and was not paid placement.
Walk through a warehouse, open a brake pad box, or inspect inventory on a shelf, and most brake pads appear remarkably similar.
Many are painted black.
Many look clean.
Many appear corrosion resistant.
But appearances can be deceiving.
A painted brake pad tells you almost nothing about the condition of the steel beneath the coating.
Paint is often applied as one of the final manufacturing steps. Once the coating is applied, installers and distributors have little ability to evaluate what the backing plate looked like beforehand.
The question is not whether paint improves appearance.
The question is whether the steel underneath will survive for the life of the friction material.
Because that remains the standard that matters:
The steel must outlast the friction for the entire life of the brake pad.
Brake pads operate in one of the harshest environments on a vehicle. Road salt, moisture, debris, thermal cycling, impact damage, and abrasion constantly attack exposed steel surfaces.
As corrosion develops, it can create more than cosmetic concerns.
Corrosion can contribute to:
• Rust jacking
• Friction lift
• Loss of clearance
• Pad binding
• Uneven wear
• Noise
• Shim separation
• Delamination
The challenge is that paint is primarily a visual finish. Once damaged by installation, bracket contact, debris impact, or normal service wear, exposed steel becomes vulnerable.
For installers and distributors, the important question becomes:
What protection remains when the paint no longer does?
A brake pad should be engineered around long-term structural durability—not short-term appearance.
The steel foundation should remain protected throughout the service life of the friction material.
Because once again, the friction is expected to disappear.
The steel is expected to remain.
Next Week
Part 3: The Friction Can Only Be As Good As The Steel Beneath It
We’ll examine why even premium friction formulations depend entirely on the backing plate’s ability to support, retain, and stabilize the friction material throughout its wear life.
About NRS Brakes
NRS Brakes manufactures brake pads built around its NRS (NUCAP Retention System) technology, which uses hooked, galvanized steel backing plates to retain friction material through mechanical attachment rather than adhesive. Its pads also feature a noise-dampening piston insert. The approach underlies the FMSI “Z” designation for OEM-specified mechanical fusion. NRS Brakes is based in Toronto, Ontario.
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