(c) Uncured Latex sheet gum, Specification No. 26568.

     (d) Cellular sponge, Specification No. 26556.

     (e) Chrome-tanned steer hide, types 1 and 2, Specification No. 12028.

     (f) M-40 neoprene cement with liquid accelerator.

     (g) TL-284 Fuller's slushing compound.

(6) Tools for Repair Kit.

     (a) One set of No. 50 emery paper.

     (b) One bevel stitcher, 2 inches x 2-1/2 inches x 1/4 inch.

     (c) One hand roller, 2 inches.

     (d) One round handled turn-over knife.

     (e) One steel knife for cutting rubber, type 1 inch x 4 inches.

     (f) Several 1-inch brushes for cement and slushlng compound.

     d. Repair of Fuel Bag Shells. -Failures in the fuel tank shells can usually be repaired by welding provided a smooth interior surface is obtained that will not injure the fuel bag. Remove the paint coatings from around the damaged area with paint remover and thoroughly wash off the surface with hot water before proceeding to repair the shell. See section I, paragraphs 6.a and 6.b., and this section, paragraph 1.h. Sl.ells must be free from dirt, oil, grease, etc., before proceeding with welding operation.

     e. Oil Tanks

     (1) Application of Linatex Covering to the Oil Tank. - Remove the Linatex covering of the aluminum oil tank when effecting repairs by welding. Replace the Linatex covering of the oil tank according to the following procedure:

     (a) Tanks shall have one coat of primer before covering with Linatex.

     (b) Clean tank with solvent (naphtha, benzol,etc.) to remove oil, grease, and dirt.

     (c) Apply one coat of primer C-10. Allow to dry 1/2 hour (minimum).

     (d) Apply one coat of cement L-110. Allow to dry 10 to 15 minutes. Tanks may stand for 1 to 2 days after cementing if necessary.

            (e) Clean Linatex coat (one side) with solvent to remove dirt, oll, and grease.

     (f) Brush in well one coat Solufix No. 1. Only mix sufficient Soluflx No. 1 for one dayÕs use, as it jells rapidly on exposure to the air. Soluflx No. 1 is 50 percent No. 1A and 50 percent Soluflx No. lB. Allow to dry 10 to 15 minutes.

     (g) Apply one coat Solufix No. 1 to tank and allow to dry 10 to 15 minutes.

     (h) Cement on Linatex covering, working from center of sheet outward. No air should be trapped under the coating.

     (i) At joints lap 1-inch minimum, and clean with solvent. Brush both surfaces with Soluflx No. 1, allow to dry 10 to 15 minutes; then roll down, beginning at the edge of the lap, using the thin roller along the lapped edge first.

      IMPORTANT: Each layer must be hand-rolled immediately after applying to the tank. Care should be taken to work from the center outward and no air shall be trapped between the layers. (j) Clean the first coat of Linatex with solvent. Brush in one coat of Solufix No. l and allow to dry 15 minutes.      

     (k) Clean the layers of Linatex for the second covering with solvent. Brush in one coat of Solufix No. 1, and allow it to dry 15 minutes.

     (l) Apply the second coat of Linatex over the first, and work it down as before. No air shall be trapped between layers. Roll down the surface after application of the second coat.

     (m) Clean the Linatex covering and the (163/4 ounces) duck on its proofed side. Apply to each one coat of Soluflx No. 1 and allow to dry 10 to 15 minutes.

     (n) Apply the duck covering over the Linatex layers, pulling down hard. Work should be from the center outward.

     (o) Apply one coat of cement L-110 to the joints of duck and allow to dry 15 to 20 minutes; then one coat Solufix No. 1 and allow to dry 15 minutes. All lap joints must then be rolled down, working from the edge of the under layer out.

     (p) The edges of all lapped joints and edges of openings for clips and fittings must be coated with cement L-110.