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           TG No. 144                                                                 August 1987

           C-8.  FEDERAL SPECIFICATION TT-P-1757, 26 SEPTEMBER 1983, PRIMER COATING, ZINC
           CHROMATE, LOW-MOISTURE-SENSITIVITY.

               a. This primer is a low-moisture-sensitivity, corrosion-inhibiting
           primer, for use primarily on aluminum aircraft or airborne equipment. The
           primer can be used alone or top coated with lacquer or enamel. It is suitable
           for use over a wide range of temperature and humidity conditions. Two colors
           of primer are available under this specification, color Y. a yellow primer,
           and color T, a green color. Type I Is a bulk container and Type II is in
           aerosol containers. Both colors contain insoluble chrcxnium VI compounds.
           Solids limitations and Pigment composition are shown in tables C-16 and C-17.


           Table C-16
           Solids content
                                                                                      Minimum
           Zinc chromate primer                                                  Requirements
                                                                              Type I    Type II

               (a) Total solids (percent by weight of primer)                    46          13

               (b) Pigment content (percent by weight of total solids)           53          53




           Table C-17
           Pigment composition
                 tt                                                       Percent by weight
           Pigmen                                                       Minimum      Maximum
           Ingredient'

               (a) Zinc chromate                                                85

               (b) Siliceous extenders                                          --        is



               Carbon black or lamp black are the prime pigments recommended      for tinting.
ities of other pigments may       be used.









                                                    C-16





                                                                                               4 e)
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 = 00000158.tif

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