Figure 2-5.
Internal Structure Flush Patch.
SEALING WATERTIGHT AND PRESSURIZED AREAS
Repairs on hulls and floats must be watertight, and repairs
to pressurized compartments must be sealed against pressure
loss. The same sealing method used by the manufacturer must be
used whenever possible. A recommended method is to clean all
contact surfaces with an approved naphtha. In addition, ensure
that all burs, chips, and foreign materials are removed. Apply
zinc-chromate sealing tape to both surfaces, and peel off the
cloth backing strip. Brush on a coating of zinc-chromate paste,
and draw the mating surfaces together with machine screws and
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