Corrosion Protection
Spray Accessibility to the Repair
Being able to achieve fog spray penetration into enclosed cavities as well as open areas requires application
equipment, which includes an assortment of wands of various lengths and design.
Some areas are more effectively treated by brush application of corrosion protection material before they are
assembled. A good example of this is an inner and outer engine compartment side rail area. Brush application to the
inside of these areas as individual pieces is easy before assembly and can be followed by a light fog application to the
weld areas and the crevices formed during assembly after the rails are assembled. Brush application keeps the foreign
material from getting between welded joints during assembly yet gives good coverage to general areas with easy
application. The material selected in addition to paint compatibility features and fog application features is also an
excellent brush application material. Repaired areas, boxed in or closed in are more easily treated during assembly
using fog and brush on techniques. Care must be taken to keep the corrosion materials away from the welding areas
as welding contamination might take place. Brush-on applications are used before welding and fog in applications are
used after welding assemblies together.
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