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   Data updated: 02 Jul 2025. Home |  About Quick Search |  ASSIST |  ASSIST Updates Document Details
Document ID:   TT-C-490       Scroll down to access document images

Overview
Title:  Chemical Conversion Coatings and Pretreatments for Metallic Substrates (Base for Organic Coatings)
Scope:  This specification covers processes, pretreatments, and pre-primer surface preparations of metallic substrates for coating applicators. It covers metal surface preparation for delaying corrosion initiation and promoting primer adhesion. In addition, this specification covers the testing requirements for qualification of conversion coatings, the pretreatments and pre-primer coatings. This specification includes production validation requirements, which may also vary depending on the contract. Additional qualification requirements may be required based on each specific application. For all types and classes, unless contraindicated on drawings or contracts, materials containing hexavalent chromium (Cr6+) shall not be permitted on coated end items.
Status:  Active Document Date:  06-SEP-2024      
  Next Review Due:  05-SEP-2029
MFFP Doc Category:   Federal Specification  
Qualification  

Responsibilities
Lead Standardization Activity:  MR  Army Research Laboratory, Weapons and Materials Research Directorate  
  Preparing Activity: MR  Army Research Laboratory, Weapons and Materials Research Directorate
DoD Interest Level:  / Prepared by DoD activity
Coordination:  Full  
Army Custodian:  MR   Army Research Laboratory, Weapons and Materials Research Directorate  
Navy Custodian:  SH   Naval Sea Systems Command (Ship Systems)  
Air Force Custodian:  184   Air Force Life Cycle Management Center, Warner Robins  

Projects
 Project Number:     MFFP-2025-009
Revision History Click on column headings for a description of column content.
MediaDocument Part DescriptionDist StmtDocument DatePagesSize
Document ImageRevision J A06-SEP-202436497.0 KB
Document ImageRevision H A16-SEP-202136636.8 KB
Document ImageRevision G A09-SEP-201936423.1 KB
Document ImageRevision F Amendment 4 (all previous amendments incorporated)A20-JUL-201837333.3 KB
Document ImageRevision F Interim Amendment 3 (all previous amendments incorporated)A29-FEB-201634303.6 KB
Document ImageRevision F Amendment 2 (all previous amendments incorporated)A24-SEP-201534510.9 KB
Document ImageRevision F Amendment 1 (amendment incorporated)A17-MAY-201325184.9 KB
Document ImageRevision F A31-JAN-201324178.3 KB
Document ImageRevision E A22-JUL-20021756.6 KB
Document ImageRevision D Interim Amendment A14-SEP-1994129.3 KB
Document ImageRevision D A31-MAR-1993191208.3 KB
Document ImageRevision C Amendment 2 A29-JUN-19906230.8 KB
Document ImageRevision C Amendment 1 A30-JUN-19874170.5 KB
Document ImageRevision C A18-MAR-198516680.3 KB
Document ImageRevision B A21-JUL-19719483.9 KB
Document ImageRevision A A09-DEC-196814580.5 KB
Document ImageBase Document A30-MAR-196112655.2 KB

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