ArvinMeritor’s Aftermarket business, responding to customer demand and an ongoing industry call for more rust-resistant brake components, recently introduced hydraulic disc brake rotors with a new, patented coating, called ZXP3, designed to protect against oxidation and corrosion.

The initial launch will cover three part numbers, with more models to be released throughout the year, said ArvinMeritor. The new coating will initially be applied to rotors with a cast-in ABS tone ring, and other applications for the coating are under research and development. The coated rotors will be distributed under the Meritor and Euclid brands through commercial vehicle aftermarket distributors and OE truck dealers in the U.S., Canada and Mexico starting this month.

Brake rotors are made of iron, and rust is a common problem particularly in the tone ring area. It forms quickly on bare metal and can lead to diminished ABS braking performance, corrosion and metal fatigue. ArvinMeritor’s coating process ensures that the rotor receives a complete application.

“The coating adheres and seals thoroughly — even the outside edge of the cooling veins get coated — and will not wear or chip when exposed to heat, chemical deicers, wash solutions, pebbles, sand or grime,” said Dennis Riedel, hydraulic brake product manager, Aftermarket. “After extensive testing both in the lab and in actual motor carriers’ fleets, including 400 hours ...

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