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                  TG No. 144                                                         August 1987


                  C-9. MILITARY SPECIFICATION NIL-P-74553, 13 NOVEMBER 1972, PRIMER COATING,
                  DIPPING-AUTOMOTIVE.

                      a. This primer is intended primarily for dip application on automotive
                  components. Although not Intended for spray application, it may be used in
                  that manner for spot priming. This primer should not be used under acrylic
                  type lacquers or enamels. There are two classes of this alkyd baking primer;
                  Class I - Low bake for temperatures of 300 to 325 *F and Class 2 - High bake
                  for temperatures of 365 to 385 *F. Both classes of primers are divided into
                  Composition G for general use and Composition L which is suitable for use
                  under air pollution regulations. This primer is dark grey or black in color.
                  Pigment for the primer is one of the following materials, carbon black,
                  titanium dioxide, zinc chromate, iron-oxide, and extenders. The primer must
                  show a minimum of 5 percent zinc chromate by weight of total pigment which
                  must be at least 30 percent by weight of the primer. Lead is restricted in
                  this primer to less than 0.5 percent.

                      b. The volatile portion on Composition L primers is limited to that
                  presented in table C-19.


                  Table C-19
                  Volatile composition
                                                                               Percent by volume
                  Ingredients                                                        Maximum

                      (a)   Aromatic compounds with eight or more carbon                 8
                            atoms except ethylbenzene

                      (b)   Ethylbenzene, toluene, and branched ketones                20

                   (c)   Solvents with an olefinic or cycloolefinic               negative
                            type of unsaturation

                      (d)   Total of (a) + (b)                                         20


                  Since the solvent content is written in generic terms the MSDS for   the used
                  primer used must be consulted.
                      c. This primer Is packaged in I quart or gallon containers, 5    gallor.
                  pails or 55-gallon steel drums. Each container of primer is required to Dal-e
                  the following precautionary markings:

                              CAUTION: Contains zinc chromate
                                        Take adequate precautions when spraying
                                        Avoid breathing mist or dust
                                        Avoid skin contact

                      d. NSHel are not listed In HMIS cross reference file.



                                                         C-19

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Box ID = BX000000
Unit = VII CORPS       
Parent Organization = ARCENT          
Folder Title = PORT OPERATIONS CARC PAINTING POLICY                                                            
Subject = ARMY REGULATION 11-34 (RESPIRATORY PROTECTION PROGRAM
Document Number =        103
Image file name = 00000161.tif

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