Henkel Corporation

Craig S Caldwell

Mervet S Boulos

An aqueous based cleaner containing at least inorganic alkalinizing agents and surfactants is capable of removing long dried paint and thick carbonaceous deposits from used aircraft engines, sometimes without using organic solvents at all and always without using more than a few % of such solvent, thereby greatly reducing pollution potential from this difficult cleaning operation. A preferred cleaner also includes a hydrotroping agent, and the cleaner may also contain corrosion inhibitor, sequestering agent for hard water cations, and other materials.

Solvent-free or solvent-minimized process and composition for cleaning hard surfaces, especially for removing long-dried paint and carbonaceous soils from aluminum engine parts

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Rochester Hills, MI, United States of America

Craig S Caldwell