Noble Thomas Pessano

US Patent:

56413483, Jun 24, 1997

Filed:

Aug 7, 1995

Appl. No.:

8/511906

Inventors:

Richard N. Miller - Pinole CA
Noble Thomas Pessano - Palo Alto CA

International Classification:

C04B 732

US Classification:

106 383

Abstract:

A mixture producing a slurry for coating metallic vehicle exhaust conduits utilizing a refractory cement and a caustic or alkaline salt binder. Sufficient amounts of water are also employed in the slurry resulting in a flowable material. The slurry flows over and hardens as a thin uniform coating on the interior surface of an exhaust conduit. The coating exhibits excellent adhesion to the metallic material, does not crack or chip under impact forces, and possesses a coefficient of thermal expansion similar to the underlying metallic structure.