Accession Number:

AD0749705

Title:

Evaluation of Corrosion Inhibiting Pigments for Aluminum

Descriptive Note:

Phase rept.

Corporate Author:

NAVAL AIR DEVELOPMENT CENTER WARMINSTER PA AIR VEHICLE TECHNOLOGY DEPT

Personal Author(s):

Report Date:

1972-08-30

Pagination or Media Count:

13.0

Abstract:

Laboratory corrosion tests of inhibitors indicate that the inhibitors which contain hexavalent chromium gave the best protection for aluminum. However, potassium permanganate, also an oxidizing agent which deposits manganese dioxide on the aluminum, prevents corrosion. For screening inhibitors, a weighed aluminum coupon was immersed in a 5 sodium chloride solution containing 0.1 of inhibitor. The coupon was left undisturbed for approximately three weeks. It was then rinsed in distilled water, dried, and weighed and examined visually.

Subject Categories:

  • Coatings, Colorants and Finishes

Distribution Statement:

APPROVED FOR PUBLIC RELEASE