Yenra : Manufacturing : Ceramic Piston Heads : Coating that withstands extreme combustion temperatures beats the surface hardness of hard-anodized coatings

Ceramic Piston Head

High-strength Sealed Power and Speed-Pro pistons from Federal-Mogul features a complex ceramic head coating technology that withstands combustion temperatures of up to 2000 degrees Fahrenheit and delivers three times the surface hardness of hard-anodized coatings.

New Sealed Power and Speed-Pro Thermoshield-coated pistons are offered in hypereutectic and Powerforged designs for a variety of popular standard replacement and performance applications. The pistons' advanced Thermoshield crown coating is produced through an immersion process using electrical impulses that convert the piston surface into an extremely strong, smooth and heat resistant complex ceramic. Because the Thermoshield barrier is atomically bonded to the piston substrate, the material is highly resistant to flaking and cracking and provides exceptional protection of even sharp corners. Thermoshield is well suited as a top ring groove coating.

Conventional piston crown coating technologies such as hard anodizing, sprayed ceramics and electroplating produce significantly lower surface hardness. The use of piston crown barrier coatings is becoming increasingly popular in many demanding performance and other high-temperature applications.

"Thermoshield is by far the best choice for engine builders who want to maximize performance without overheating the pistons," said Raymond King of Federal-Mogul. "This exciting new technology makes hard-anodizing and other conventional crown coating technologies virtually obsolete in terms of strength, durability, finish quality, and consistency."

Each new Sealed Power and Speed-Pro piston also features an antifriction skirt coating that helps eliminate scuffing and other skirt and cylinder wall damage in high-rpm, high-temperature applications.