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|  MIL-T-62531(AT)
APPENDIX A
3.13 Rustproofing. Vehicles shall be rustproofed in accordance with MIL-R-46164.
Rationale
Apply corrosion preventative compounds to the sheet metal areas as specified in
MIL-R-46164. When properly applied, such compounds shall prevent rusting in severe
environmental areas.
Guidance
Workmanship shall be of such quality to assure that application of corrosion preventative
compound(s) to all vehicles under contract, shall conform to the rustproof drawings and technical
documents referenced in the contract and to requirements of the specification. Particular
attention shall be paid to the requirement of an evenly applied coating with no running, sagging,
or excessive build-up. Any overspray of material on body finish, trim, windows, or upholstery
shall be removed without causing damage to any component or material (paint, rubber, plastic,
etc.). Any overspray that may accumulate in prohibited areas shall be removed with a clean
cloth and solvent, such as naphtha. A minimum amount of solvent should be used to remove
deposits of compound from the upholstery. Necessary precaution shall be taken to assure that
the selected solvent does not cause damage to rubber padding, upholstery, adhesives, and any
prohibited areas.
Lessons Learned
4.13 Rustproofing examination. When rustproofing is specified, vehicle(s) shall be
examined for conformance to 3.13. The contractor shall provide, for Government approval, a
written description of a quality assurance rustproofing plan, prior to initiation of the rustproofing
process.
Verification Rationale
To assure proper coverage and adequacy of the rustproofing for military vehicles. A
currently written description of contractor process and details for each specific type of vehicle to
be treated, shall be submitted to the contracting officer for approval, prior to initiation of the
rustproofing process. Sample specimens shall be prepared for all boxed in areas. They shall be
made from the same materials used in production. The sample specimens shall be rustproofed as
if they were part of a complete vehicle. The specimens shall then be sectioned and inspected to
determine the extent of coverage and thickness that the rustproofing process has achieved. The
contractor shall notify the Government and obtain prior approval of any subsequent change to the
submitted procedures, prior to implementing the change into the system.
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