Cermet-coated piston rings

Proven facts, measurable results

Why Everllence cermet-coated piston rings make the difference

Our cermet-coated piston rings are a key part of the Everllence portfolio designed to meet the strict sulphur-emission limits introduced with the IMO 2020 regulation. They help ensure long-term compliance without compromising performance.

Even when operating on fuels with 0.5 % sulphur or lower, Everllence cermet-coated piston rings effectively minimize scuffing and wear risks — keeping your cylinder liners protected and performance consistent.

All new Everllence engines now feature cermet-coated piston rings as standard. Proven in service and trusted worldwide, they deliver unmatched reliability and protection across the entire two-stroke portfolio.

Get long-term performance and protection

Our piston rings are precisely engineered to work seamlessly with Everllence engines, ensuring lasting protection and reliable operation throughout your engine’s lifetime.

Alucoat is a thin running-in layer that smoothens the initial operation of the piston rings within the cylinder liners. It has a distinctive yellow appearance and is applied to all rings—including those with cermet coating.The layer typically wears off within the first few months of operation, and in some cases after as few as 1,000 running hours, revealing the underlying cast iron surface.

Request an offer for alucoat piston rings

Everllence cermet-coated piston rings provide highly effective protection against scuffing and seizures—even during prolonged operation on low-sulphur fuels (ULSFO and VLSFO).Cermet is a composite coating made of ceramic and metallic materials. This combination delivers outstanding elastic durability and high resistance to temperature and seizure.Even in cases of temporary oil film breakdown, cermet-coated rings continue to perform reliably once the film is restored—allowing normal operation until the next scheduled overhaul.

Key benefits:

• Low friction
• Reduced lube oil consumption
• Extended cylinder liner lifetime
• Safe and reliable running-in
• Maximized piston operational time
• Improved time between overhauls

Request an offer for cermet-coated piston rings

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SL2020-698

SL2019-685

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