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| 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 nuts. Drive each rivet successively as a screw and nut is taken out, and remove any excess sealing compound.
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| Curriculum design: David L. Heiserman Publisher: SweetHaven Publishing Services |
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