(c)
Make sure you apply sufficient sealant to completely fill the cavity.
(d)
Assemble the parts in the sealant usable time (Fig. 806).
(e)
If it is necessary, do this Task: Application of Corrosion Resistant Finish (Topcoat) (AMM 28-11-00/701).
NOTE: A layer of corrosion resistant finish is necessary
____ only to protect bare (anodized) metal. It is not necessary to apply a layer of corrosion resistant finish on sealant. Corrosion resistant finish can be applied on sealant, but it is not necessary. Usually topcoat is applied to sealant only when it must be applied to protect adjacent bare metal.
S 368-048
(10)
Apply a faying surface seal.
(a)
Apply a layer of Class B sealant to one faying surface with a sealing gun or spatula (Fig. 816).
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BLOCK WITH FINGER OR SPATULAWHEN ONE OPENING IS FILLED
INJECTION HOLE
SEALANT MUST COMPLETELY FILL SLOT
Apply an Injection Seal
Figure 814
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(b) (c) (d) Move the sealant on all of the surface to get an equal layer approximately 0.03 inch thick (Fig. 816).Assemble the parts in the sealant usable time.Make the extruded sealant smooth along the joint.
NOTE:____ You must apply sufficient sealant to make sure there is continuous extruded sealant on the two sides of the
joint.
(e) If it is necessary, do this Task: Application of Corrosion Resistant Finish (Topcoat) (AMM 28-11-00/701).
NOTE:____ A layer of corrosion resistant finish is necessary only to protect bare (anodized) metal. It is not necessary to apply a layer of corrosion resistant finish on sealant. Corrosion resistant finish can be applied on sealant, but it is not necessary. Usually topcoat is applied to sealant only when it must be applied to protect adjacent bare metal.
THE FITTING MUST BE TEMPORARILY REMOVED AND CLEANED OF USED SEALANT BEFORE YOU APPLY A NEW PREPACK SEAL
Example of a Combination of Prepack Seal and Fillet Seals Figure 815
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