
It protects the surface from atmospheric weathering and the action of other liquids, fumes and gases.
It prevents decay and corrosion in metal.
It is used to give a good shape to the surface.
It provides a smooth surface.

It protects the surface from atmospheric weathering and the action of other liquids, fumes and gases.
It prevents decay and corrosion in metal.
It is used to give a good shape to the surface.
It provides a smooth surface.
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