CM352 is a specialized corrosion inhibitor specified by Hartzell Propeller for maintaining aircraft propeller counterweights. It is referenced under the Consumable Materials chapter of the Hartzell Propeller Standard Practices Manual 202A.
Hydronic heating systems (hot water boilers) and chilled water loops are prone to dissolved oxygen ingress. CM352 excels here because it tolerates stagnant conditions. Typical dosage rates range from 500 to 1500 ppm, depending on water hardness and system age. cm352 corrosion inhibitor
CM352 has been commercially available since 2018 (developed by Chem-Materials Ltd., licensed globally). Current R&D focuses on: CM352 is a specialized corrosion inhibitor specified by
Repair Procedures: It is used during inspections to treat surfaces after cleaning away existing corrosion with approved solvents (like Stoddard solvent CM23) and abrasive pads. Identification cm352 corrosion inhibitor
Report ID: CI-CM352-2026-04
Date: April 21, 2026
Prepared for: Corrosion Engineering & Materials Protection
Prepared by: Corrosion Science Division
A: Yes for metal components. No for glass or lenses. It will leave a slight haze on optics. For firearms, it provides excellent bore protection without gumming up action parts.