SOW.doc

STATEMENT OF WORK (STRIP AND REPLATE)

1. Unless otherwise specified, parts are to be cadmium plated to the requirements of AMS-QQ-P-416, Revision E, or anodized to MIL-A-8625 Revision F Amendment 1.

2. Cleaning: Prior to stripping and re-plating, all surfaces shall be cleaned, regardless of Configuration contour. Cleaning must be sufficient to completely remove all traces of foreign materials and substances from the base metal; however, cleaning shall not be injurious to the base metal. Examples of the materials and substances include, but are no limited to:

Cadmium/chromate plating

DC 33, DC-111, DC-11 Grease

FS-1292 Grease

Varnish

DC 1200 Primer

RTV-732. 1200, 159, 162, 167

Loctite - Grade 242

Ethyl Cellulose Tape

Elbe Solvent

404 Double Faced Tape

Pliobond 20

Eccobond 45/Catalyst 15

VC-3 #205 Thread Sealant

Epon 828/EC1622 Accelerator

Glyptal

Scotchweld Adhesive Cement, 1357, Primer Coating Epoxy

Scotchweld 1838 A/B

Red Primer Coat 1200

Scotch Electrical Tape 54, 56

Acrylic Lacquer

Rust and Corrosion

3. Coverage: There shall be no rack marks, air bubbles, pin holes nor any other bare areas, except those specifically denoted as such by the contract/purchase order/or bankcard order.

All internal and external threads shall have at least a presence of plating (verifiable by visual examination) and a maximum coverage thickness of .00040 inches. All surfaces not controlled for plating thickness by the contract/purchase order/or bankcard order shall have presence of plating (verifiable by visual inspection) and a maximum coverage thickness of .00080 inches. These requirements shall be met regardless of part configuration, contour, part size, and any in-process controls needed to perform the plating. (This includes all internal and external surfaces.)

4. Adhesion: Plating shall show no indication of separation from the base metal when tested in accordance with ASTM D3359-95A, and shall meet adhesion requirements of the governing plating specification.

5. Embrittlement Relief: All cadmium-plated parts, regardless of hardness, must be baked, after plating, but prior to chromate finish, as specified below. Any parts exceeding R/C 36 (160 ksi) in hardness, shall also be subject to the following baking requirements between stripping and replating.

Time between Plating and Baking: shall not exceed 4 hours Temperature for Baking: 375 F +/- 25 F

Time for Baking: 23 hours minimum

6. Corrosion and Hydrogen Embrittlement Tests: Although the vendor is not required to perform this test, the government reserves the right to perform the test at any time, at government expense.

Rev A 11/13/2018