Verification and Demonstration for Transition of Non-Hexavalent Chromium, Low-VOC Alternative Technologies to Replace DOD-P-15328 Wash Primer for Multimetal Applications
Abstract
It has been known for quite some time that chemical treatments containing hexavalent chromium [Cr(VI)] are risks to both human health and the environment. In April of 2009, a memo was released from the Office of the Secretary of Defense (OSD) that specifically directs the military to approve the use of alternatives to Cr(VI) where they can perform adequately for the intended application and operating environment. Effectively, the memo directs Department of Defense (DOD) Military Departments to restrict the use of Cr(VI) unless no cost-effective alternative with satisfactory performance can be identified. This effort examines the effectiveness of alternative spray applied pretreatments for steel substrates versus DOD-P-15328 chromated wash primer. Eight nonchromate alternative candidates were evaluated against the baseline wash primer and untreated controls on multiple metal substrates, steel, galvanized steel, stainless steel, and aluminum (Al). The laboratory results identified 3 promising alternatives to the DOD-P-15328 with 1 outperforming the baseline chromate wash primer.
Document Details
- Document Type
- Technical Report
- Publication Date
- Mar 01, 2015
- Accession Number
- ADA620227
Entities
People
- John Kelley
- Thomas Braswell
- Thomas Considine
Organizations
- United States Army Research Laboratory