Preliminary Requirements

Safety Requirements

WARNING

IT IS THE RESPONSIBILITY OF THE OPERATOR TO OBTAIN AND OBSERVE THE MANUFACTURERS MATERIAL SAFETY DATA SHEETS FOR CONSUMABLE MATERIALS, AND TO TAKE LOCAL REGULATIONS INTO CONSIDERATION. THE SAFETY DATA SHEETS CONTAIN SAFETY INFORMATION SUCH AS HAZARDOUS INGREDIENTS; PHYSICAL/CHEMICAL CHARACTERISTICS; FIRE, EXPLOSION, REACTIVITY, AND HEALTH HAZARD DATA; PRECAUTIONS FOR SAFE HANDLING; AND USE AND CONTROL MEASURES.

Procedure

1. SUBTASK 70-38-43-380-001 Apply The Antigallant Compound

   1. Remove grease and oil from the areas to be coated. Use SPM TASK 70-11-26-300-503, then dry in ambient air.

   2. NOTE

      The shelf life of the compound is nine months from the date of manufacture if you keep the compound in the manufacturers initial sealed container at temperatures of 40 - 90 F (4 - 32 C).

      Do a check of the expiration on the CoMat 10-151 COMPOUND AND TREATMENT, ANTI-GALLANT container.

   3. Fully mix the CoMat 10-151 COMPOUND AND TREATMENT, ANTI-GALLANT. Refer to the manufacturers instruction.

      1. If necessary to make it easier to apply the compound, it is permitted to add thinner to the compound. Refer to the manufacturers instructions.

   4. NOTE

      The material and thickness of the test specimen must be similar to those of the section of the part that must have CoMat 10-151 COMPOUND AND TREATMENT, ANTI-GALLANT.

      Immediately use a spray to apply one layer/coat of CoMat 10-151 COMPOUND AND TREATMENT, ANTI-GALLANT to the specified surfaces of the part, and to a representative test specimen, to get a thickness that is sufficient to not let the base metal show, and that is approximately equal in all areas.

      1. If it is not possible or practical to use a spray, apply the mixed CoMat 10-151 COMPOUND AND TREATMENT, ANTI-GALLANT with a brush to get a thickness that is sufficient to not let the base metal show, and is approximately equal in all areas.

      2. If it is not possible to use a spray or a brush, it is permitted to apply the CoMat 10-151 COMPOUND AND TREATMENT, ANTI-GALLANT with a swab.

   5. Let the antigallant compound dry on the part and the test specimen in air for 30 minutes minimum.

   6. Apply more layers/coats of CoMat 10-151 COMPOUND AND TREATMENT, ANTI-GALLANT as necessary to get a total coating thickness of approximately 0.0003 - 0.0007 inch (0.0076 - 0.018 mm) on the part and on the representative test panel.

      1. Fully mix the antigallant compound immediately before you apply each layer/coat.

      2. After you apply each layer/coat, let the antigallant compound on the part and the test specimen dry in air for 30 minutes minimum.

   7. Examine the part for full coverage of the specified surfaces with CoMat 10-151 COMPOUND AND TREATMENT, ANTI-GALLANT.

      1. It is permitted to use a brush or swab to apply CoMat 10-151 COMPOUND AND TREATMENT to areas that do not have sufficient CoMat 10-151 COMPOUND AND TREATMENT, ANTI-GALLANT.

   8. Cure the CoMat 10-151 COMPOUND AND TREATMENT, ANTI-GALLANT:

      1. NOTE

         The cure cycle time does not start until the part surface temperature is in the specified cure temperature range.

         Do one of the subsequent cure cycles to cure the CoMat 10-151 COMPOUND AND TREATMENT, ANTI-GALLANT:

         1. Cure the antigallant compound on the part and the test specimen in air at 350 - 400 F (177 - 204 C) for 45 - 75 minutes.

         2. Cure the antigallant compound on the part and the test specimen in air at 275 - 325 F (135 - 163 C) for 105 - 135 minutes.

      2. Air cool.

   9. Examine the test specimen to make sure the CoMat 10-151 COMPOUND AND TREATMENT, ANTI-GALLANT is fully cured. Do the subsequent procedure:

      1. Scrape the coating from the related test specimen into a pile with a sharp, flat instrument.

         1. If you can blow the pile away easily as powder, coating is sufficiently cured.

         2. If the pile is gummy, the CoMat 10-151 COMPOUND AND TREATMENT, ANTI-GALLANT is not fully cured.

   10. Do an inspection of the cured CoMat 10-151 COMPOUND AND TREATMENT, ANTI-GALLANT on the part.

       1. The cured antigallant compound must have a gray-black matte surface.

       2. The color of the cured antigallant compound must be approximately equal on all coated areas.

       3. The cured antigallant compound coating must be smooth.

       4. The cured antigallant compound coating must be well bonded with no signs of flakes, cracks, or loss of bond.

       5. The cured antigallant compound coating must have no imperfections that can cause unsatisfactory operation of the part.

       6. NOTE

          This equipment is available from the sources that the Source Codes in Table 1 identify. Refer to V2500 Vendor List (DMC V2500-00-00-00-00-00A-00KA-D) for the source names/addresses that these numbers identify.

          Check the thickness of the coating with one of the instruments (or equivalent) that follow.

          Magnetic Base Parts	Nonmagnetic Base Parts	Source Code
          TT260 F1*	TT260 N1*	E036Q
          CTG-10 F1*	CTG-10 N1*	E036Q
          Fischer Dualscope MP40**	Fischer Dualscope MP40**	61325
          EGABI 1.3-150 Probe	EAI 3.3-150 Probe
          Elcometer A456FSI 1	Elcometer A456NSI 1	1HE42
          * The TT260 series of gages above are newer and better than the CTG-10 series but the CTG10 series of gages continue to be available from the manufacturer, EQ036. It is permitted to use the older series.
          ** MP40 replaces MP4C; it is permitted to continue to use the MP4C Dualscope.

          1. If coating thickness is not in the limits given, do as follows:

             1. NOTE

                It will be necessary to do the applicable EM repair to replace the paint.

                Strip the coating by SPM TASK 70-12-07-120-501.

             2. If the part is a painted steel part, strip the paint by SPM TASK 70-11-05-300-503.

             3. Do this procedure to apply CoMat 10-151 COMPOUND AND TREATMENT, ANTI-GALLANT and treatment again.